Fiber sets

class materials.sections.fiber_section.fiber_sets.FiberSet(scc, setName, matTag)

Bases: object

This class constructs a set of all the fibers made of the same material

from a fiber section

Variables

  • scc – fiber section

  • setName – name of the set of fibers to be generated

  • matTag – integer tag indentifying the uniaxial material which forms the fibers

fSet = None
getFiberWithMaxStrain()

returns the fiber with the maximum strain from the set of fibers

getFiberWithMinStrain()

returns the fiber with the minimum strain from the set of fibers

class materials.sections.fiber_section.fiber_sets.RCSets(scc, concrMatTag, concrSetName, reinfMatTag, reinfSetName)

Bases: object

This class constructs both the concrete and reinforced steel fiber sets from a reinforced concrete fiber section

Variables

  • scc – fiber section.

  • concrMatTag – identifier of the uniaxial material that makes up the concrete fibers of the section

  • concrSetName – name of the set of fibers of concrete to be generated.

  • reinfMatTag – identifier of the uniaxial material that makes up the reinforcing steel fibers of the section.

  • reinfSetName – name of the set of fibers of reinforcing steel to be generated.

concrFibers = None
getConcreteArea(factor)

returns the cross section area of concrete in the set of fibers

getConcreteCompression()

returns the resultant of compressive stresses in the concrete fibers of the section

getConcreteInitialTangent()

returns the initial tangent in the stress-strain diagram of the material that makes up the fibers of concrete

getMaxConcreteStrain()

returns the maximum strain in the set of concrete fibers

getNumTensionRebars()

returns the number of reinforcing steel fibers in tension

reinfFibers = None
reselTensionFibers(scc, tensionFibersSetName)

returns a set with those fibers in tension from the total set

tensionFibers = None
materials.sections.fiber_section.fiber_sets.createRCFiberSets(preprocessor, setName, concrMatTag, reinfMatTag)
Constructs the sets of concrete fibers ‘concrete’ and reinforcing steel

fibers ‘reinforcement’ for all the elements included in a set of elements.

Returns the following two sets of fibers:

  • set named concrete: include all the fibers of material concrMatTag from the set of elements setName

  • set named reinforcement: include all the fibers of material reinfMatTag from the set of elements setName

Parameters

  • preprocessor – preprocessor name

  • setName – name identifying the set of element

  • concrMatTag – tag of the uniaxial material that makes up the concrete fibers

  • reinfMatTag – tag of the uniaxial material that makes up the reinforcing steel fibers

materials.sections.fiber_section.fiber_sets.fiberSectionSetupRC3Sets(scc, concrMatTag, concrSetName, reinfMatTag, reinfSetName)

returns a set of tensioned fibers tensionedReinforcement of a fiber section of reinforced concrete.

Parameters

  • scc – name identifying the fiber section

  • concrMatTag – tag of the uniaxial material that makes up the concrete fibers

  • concrSetName – name of the set of fibers of concrete to be generated

  • reinfMatTag – tag of the uniaxial material that makes up the reinforcing steel fibers

  • reinfSetName – name of the set of fibers of reinforcing steel to be generated

materials.sections.fiber_section.fiber_sets.fiberSectionSetupRCSets(scc, concrMatTag, concrSetName, reinfMatTag, reinfSetName)
materials.sections.fiber_section.fiber_sets.getIMaxPropFiber(fibers, methodName)

returns the fiber from a set of fibers where the maximum value of a certain property is reached

Parameters

  • fibers – set of fibers

  • methodName – name of the method that returns the fiber property searched

materials.sections.fiber_section.fiber_sets.getIMinPropFiber(fibers, methodName)

returns the fiber from a set of fibers where the minimum value of a certain property is reached

Parameters

  • fibers – set of fibers

  • methodName – name of the method that returns the fiber property searched

materials.sections.fiber_section.fiber_sets.redefTensStiffConcr(setOfTenStffConcrFibSect, ft, Ets)

Redefine the tension stiffening parameters of the concrete fibers in set passed as parameter.

Parameters

  • fibSect – fiber section

  • setOfTenStffConcrFibSect – set of fibers made of a concrete material with tension stiffening (constitutive model type concrete02) whose tension properties we want to redefine.

  • ft – new value of the tensile strength (see concrete02 constitutive model)

  • Ets – new value of the softening stiffness (see concrete02 constitutive model)

materials.sections.fiber_section.fiber_sets.reselTensionFibers(scc, fiberSetName, tensionFibersSetName)

Returns the fibers under tension included in a set of fibers of a fiber section type

Parameters

  • scc – name identifying the fiber section

  • fiberSetName – name identifying the set of fibers

Geometry of fiber sections

materials.sections.fiber_section.geom_fiber_sect.gmRectangSection(geomSection, fiberMatName, h, b, nDIJ, nDIK)

returns a rectangular section of fibers of the same material

Parameters

  • geomSection – geometric section

  • fiberMatName – name of the material that makes up the fibers

  • h – length of the height side of the rectangle

  • b – length of the width side of the rectangle

  • nDIJ – number of divisions to be used along the IJ (width) direction

  • nDJK – number of divisions to be used along the JK (height) direction

materials.sections.fiber_section.geom_fiber_sect.gmSquareSection(geomSection, fiberMatName, ld, nD)

returns a square section of fibers of the same material

Parameters

  • geomSection – geometric section

  • fiberMatName – name of the material that makes up the fibers

  • ld – edge length of the square

  • nD – number of divisions to be used along the edges of the square

Definition of reinforcement in fiber sections

materials.sections.fiber_section.geom_reinf_fiber_sect.ggmTopRowRebars(sectionGeom, fiberMatName, nRebars, areaRebar, depth, width, cover)

Horizontal row of reinforcement bars in the top face.

Parameters

  • sectionGeom – geometric section

  • fiberMatName – name identifying the material that makes up the fibers

  • nRebars – number of reinforcing bars to be placed in the row

  • areaRebar – cross-sectional area of each reinforcing bar

  • depth – depth (vertical direction) of the rectangular section

  • width – width (horizontal direction) of the rectangular section

  • cover – effective cover

materials.sections.fiber_section.geom_reinf_fiber_sect.gmBottomRowRebars(sectionGeom, fiberMatName, nRebars, areaRebar, depth, width, cover)

Horizontal row of reinforcement bars in the bottom face.

Parameters

  • sectionGeom – geometric section

  • fiberMatName – name identifying the material that makes up the fibers

  • nRebars – number of reinforcing bars to be placed in the row

  • areaRebar – cross-sectional area of each reinforcing bar

  • depth – depth (vertical direction) of the rectangular section

  • width – width (horizontal direction) of the rectangular section

  • cover – effective cover

materials.sections.fiber_section.geom_reinf_fiber_sect.gmHorizRowRebars(sectionGeom, fiberMatName, nRebars, areaRebar, depth, width, cover, h)

Horizontal row of reinforcement bars, placed at a distance h from the median plane (h + towards the top face)

Parameters

  • sectionGeom – geometric section

  • fiberMatName – name identifying the material that makes up the fibers

  • nRebars – number of reinforcing bars to be placed in the row

  • areaRebar – cross-sectional area of each reinforcing bar

  • depth – depth (vertical direction) of the rectangular section

  • width – width (horizontal direction) of the rectangular section

  • cover – effective cover

  • h – vertical distance from the row of rebars to the horizontal simetry axis of the section

materials.sections.fiber_section.geom_reinf_fiber_sect.gmSideFaceRebars(sectionGeom, fiberMatName, areaRebar, depth, width, cover, h)

Side face row of reinforcement, placed at a distance h from the median plane (h + towards the top face).

Parameters

  • sectionGeom – geometric section

  • fiberMatName – name identifying the material that makes up the fibers

  • areaRebar – cross-sectional area of each reinforcing bar

  • depth – depth (vertical direction) of the rectangular section

  • width – width (horizontal direction) of the rectangular section

  • cover – effective cover

  • h – vertical distance from the row of rebars to the horizontal simetry axis of the section

Definition of reinforced concrete sections

class materials.sections.fiber_section.def_simple_RC_section.BasicRectangularRCSection(name=None, sectionDescr=None, width=0.25, depth=0.25, concrType=None, reinfSteelType=None, nDivIJ=10, nDivJK=10, swapReinforcementAxes=False)

Bases: materials.sections.fiber_section.def_simple_RC_section.RCSectionBase, materials.sections.section_properties.RectangularSection

Base class for rectangular reinforced concrete sections.

Variables

  • shReinfZ – object of type ShearReinforcement defining the shear reinforcement in Z direction

  • shReinfY – object of type ShearReinforcement defining the shear reinforcement in Y direction

  • torsionReinf – object of type TorsionReinforcement defining the torsion reinforcement.

  • swapReinforcementAxes – if true, swap the axes of reinforcement so the positive and negative reinforcement rows are placed rotated 90 degrees.

clearConcreteRegions()

Clear previously defined concrete regions.

defConcreteRegion()

Define a rectangular region filled with concrete.

defElasticMembranePlateSection(preprocessor, overrideRho=None, reductionFactor=1.0)
Constructs an elastic isotropic section material appropriate

for plate and shell analysis.

Parameters

  • preprocessor – XC preprocessor of the finite element problem.

  • overrideRho – if defined (not None), override the value of the material density.

  • reductionFactor – factor that divides the concrete elastic modulus to simulate the effect of cracking, normally between 1.0 and 7.0.

defElasticSection1d(preprocessor, overrideRho=None, reductionFactor=1.0)

Return an elastic section appropriate for truss analysis.

Parameters

  • preprocessor – preprocessor of the finite element problem.

  • overrideRho – if defined (not None), override the value of the material density.

  • reductionFactor – factor that divides the concrete elastic modulus to simulate the effect of cracking, normally between 1.0 and 7.0.

defElasticSection2d(preprocessor, majorAxis=True, overrideRho=None, reductionFactor=1.0)

Return an elastic section appropriate for 2D beam analysis

Parameters

  • preprocessor – XC preprocessor for the finite element problem.

  • majorAxis – true if bending occurs in the section major axis.

  • overrideRho – if defined (not None), override the value of the material density.

  • reductionFactor – factor that divides the concrete elastic modulus to simulate the effect of cracking, normally between 1.0 and 7.0.

defElasticSection3d(preprocessor, overrideRho=None, reductionFactor=1.0)

Return an elastic section appropriate for 3D beam analysis

Parameters

  • preprocessor – preprocessor of the finite element problem.

  • overrideRho – if defined (not None), override the value of the material density.

  • reductionFactor – factor that divides the concrete elastic modulus to simulate the effect of cracking, normally between 1.0 and 7.0.

defElasticShearSection2d(preprocessor, majorAxis=True, overrideRho=None, reductionFactor=1.0)
elastic section appropriate for 2D beam analysis, including

shear deformations.

Parameters

  • preprocessor – XC preprocessor for the finite element problem.

  • majorAxis – true if bending occurs in the section major axis.

  • overrideRho – if defined (not None), override the value of the material density.

  • reductionFactor – factor that divides the concrete elastic modulus to simulate the effect of cracking, normally between 1.0 and 7.0.

defElasticShearSection3d(preprocessor, overrideRho=None, reductionFactor=1.0)
elastic section appropriate for 3D beam analysis, including shear

deformations

Parameters

  • preprocessor – XC preprocessor for the finite element problem.

  • overrideRho – if defined (not None), override the value of the material density.

  • reductionFactor – factor that divides the concrete elastic modulus to simulate the effect of cracking, normally between 1.0 and 7.0.

getContour()

Return the vertices of the section contour.

getCopy()

Returns a deep enough copy of the object.

getDepth()

Return the depth of the section that corresponds to the reinforcement axes: (width if the reinforcement axes are swapped).

getDict()

Put member values in a dictionary.

getRespT(preprocessor)

Material for modeling torsional response of section.

Parameters

preprocessor – preprocessor of the finite element problem.

getRespVy(preprocessor)

Material for modeling Y shear response of section.

Parameters

preprocessor – preprocessor of the finite element problem.

getRespVz(preprocessor)

Material for modeling Z shear response of section.

Parameters

preprocessor – preprocessor of the finite element problem.

getShearReinfY()

Return the shear reinforcement for Vy.

getShearReinfZ()

Return the shear reinforcement for Vz.

getShearReinforcementArea()

Return the total shear reinforcement area by member unit length.

getTorsionReinforcementArea()

Return the total torsion reinforcement area by member unit length.

getTotalReinforcementArea()

Return the total reinforcement area by member unit length.

getW1(bendingAxis='z')

Section modulus of the gross section with respect to the most tensioned fiber.

Parameters

bendingAxis – bending axis (‘z’ or ‘y’).

getW1y()

Section modulus of the gross section with respect to the most tensioned fiber.

getW1z()

Section modulus of the gross section with respect to the most tensioned fiber.

getWidth()

Return the width of the section that corresponds to the reinforcement axes: (depth if the reinforcement axes are swapped).

latexReportGeometry(os=<_io.TextIOWrapper name='<stdout>' mode='w' encoding='utf-8'>)

Write geometry data in LaTeX format.

Parameters

os – output stream.

latexReportShearReinforcement(os=<_io.TextIOWrapper name='<stdout>' mode='w' encoding='utf-8'>)

Write shear reinforcement report in LaTeX format.

Parameters

os – output stream.

report(os=<_io.TextIOWrapper name='<stdout>' mode='w' encoding='utf-8'>, indentation='')

Get a report of the object contents.

setFromDict(dct)

Read member values from a dictionary.

Parameters

dct – Python dictionary containing the member values.

class materials.sections.fiber_section.def_simple_RC_section.LongReinfLayers(lst=None)

Bases: object

Layers of longitudinal reinforcement.

append(rebarRow: materials.sections.fiber_section.def_simple_RC_section.ReinfRow)

Append a reinforcement row to the list.

RebarRow

row of reinforcement bars.

centerRebars(b)

centers in the width of the section the rebars.

clear()

Clear previously defined longitudinal reinforcement.

clearLayers()

Clear the previously defined reinforcement layers.

defCircularLayers(reinforcement, code, diagramName, extRad, anglePairs=None)

Definition of the reinforcement layers

Parameters

  • reinforcement – XC section reinforcement.

  • code – identifier for the layer.

  • diagramName – name of the strain-stress diagram of the steel.

  • points – end points for each row.

defStraightLayers(reinforcement, layerCode, diagramName, pointPairs)

Definition of the reinforcement layers

Parameters

  • reinforcement – XC section reinforcement.

  • layerCode – identifier for the layer.

  • diagramName – name of the strain-stress diagram of the steel.

  • pointPairs – end points for each row.

getAs()

returns the cross-sectional area of the rebars.

getAsRows()

Returns a list with the cross-sectional area of the rebars in each row.

getCover()

returns a list with the cover of bars for each row of bars.

getDiameters()

returns a list with the bar diameter for each row of bars in local positive face.

getDict()

Return a dictionary containing the object data.

getLatCover()

returns a list with the lateral cover of bars for each row of bars.

getMinCover()

Return the minimum value of the cover.

getNBar()

returns a list with the number of bars for each row.

getNominalLatCover()

returns a list with the nominal lateral cover of bars for each row of bars.

getRowsCGcover()

returns the distance from the center of gravity of the rebars to the face of the section

getSpacings()

returns a list with the distance between bars for each row of bars.

classmethod newFromDict(dct=None)

Builds a new object from the data in the given dictionary.

Parameters

  • cls – class of the object itself.

  • dct – dictionary contaning the data.

report(os=<_io.TextIOWrapper name='<stdout>' mode='w' encoding='utf-8'>, indentation='')

Get a report of the object contents.

Parameters

os – output stream.

setFromDict(dct)

Set the data values from the dictionary argument.

Parameters

dct – dictionary containing the values of the object members.

class materials.sections.fiber_section.def_simple_RC_section.RCFiberSectionParameters(concrType, reinfSteelType, nDivIJ=10, nDivJK=10)

Bases: object

Parameters needed to create a reinforced concrete fiber section.

Variables

  • concrType – type of concrete (e.g. EHE_materials.HA25)

  • concrDiagName – name identifying the characteristic stress-strain diagram of the concrete material

  • reinfSteelType – type of reinforcement steel

  • reinfDiagName – name identifying the characteristic stress-strain diagram of the reinforcing steel material

  • nDivIJ – number of cells in IJ (width or radial) direction

  • nDivJK – number of cells in JK (height or tangential) direction

clearDiagrams()

Clear the previously defined stress-strain diagrams for the section materials.

defDiagrams(preprocessor, matDiagType)

Stress-strain diagrams definition.

Parameters

  • preprocessor – preprocessor of the finite element problem.

  • matDiagType – type of stress-strain diagram (“k” for characteristic diagram, “d” for design diagram)

defInteractionDiagramParameters(preprocessor)

Defines the parameters for interaction diagrams.

Parameters

preprocessor – preprocessor of the finite element problem.

getConcreteDiagram(preprocessor)

Return the concrete strain-stress diagram.

Parameters

preprocessor – preprocessor of the finite element problem.

getDict()

Put member values in a dictionary.

getSteelDiagram(preprocessor)

Return the steel strain-stress diagram.

Parameters

preprocessor – preprocessor of the finite element problem.

getSteelEquivalenceCoefficient(preprocessor)

Return the equivalence coefficiente for the steel (Es/Ec).

Parameters

preprocessor – preprocessor of the finite element problem.

nDivCirc()

Alias for nDivIJ when defining circular sections.

nDivRad()

Alias for nDivJK when defining circular sections.

classmethod newFromDict(dct=None)

Builds a new object from the data in the given dictionary.

Parameters

  • cls – class of the object itself.

  • dct – dictionary contaning the data.

report(os=<_io.TextIOWrapper name='<stdout>' mode='w' encoding='utf-8'>, indentation='')

Get a report of the object contents.

setFromDict(dct)

Read member values from a dictionary.

Parameters

dct – Python dictionary containing the member values.

class materials.sections.fiber_section.def_simple_RC_section.RCRectangularSection(name=None, sectionDescr=None, width=0.25, depth=0.25, concrType=None, reinfSteelType=None, nDivIJ=10, nDivJK=10, swapReinforcementAxes=False)

Bases: materials.sections.fiber_section.def_simple_RC_section.BasicRectangularRCSection

This class is used to define the variables that make up a reinforced

concrete section with top and bottom reinforcement layers.

Variables

  • minCover – minimum value of end or clear concrete cover of main bars from both the positive and negative faces

  • negatvRebarRows – layers of main rebars in the local negative face of the section

  • positvRebarRows – layers of main rebars in the local positive face of the section

appendLayer(positiveReinf, nominalCover, nRebars=None, rebarsDiam=None, nominalLatCover=None)
Constructs a ReinfRow with the given data and appends it to the

reinforcement in the positive side of the section.

Parameters

  • positiveReinf – if true append to positive reinforcement otherwise to negative reinforcement.

  • nominalCover – nominal cover [m]

  • nRebars – number of rebars, if None pick the last one.

  • rebarsDiam – bar diameter [m], if None pick the last one.

  • nominalLatCover – nominal lateral cover [m], if None pick the last one.

appendNegativeLayer(nominalCover, nRebars=None, rebarsDiam=None, nominalLatCover=None)
Constructs a ReinfRow with the given data and appends it to the

reinforcement in the positive side of the section.

Parameters

  • nominalCover – nominal cover [m]

  • nRebars – number of rebars, if None pick the last one.

  • rebarsDiam – bar diameter [m], if None pick the last one.

  • nominalLatCover – nominal lateral cover [m], if None pick the last one.

appendNegativeRow(rebarRow: materials.sections.fiber_section.def_simple_RC_section.ReinfRow)
Constructs append the giver ReinfRow to the reinforcement in the

negative side of the section.

RebarRow

row of reinforcement bars.

appendPositiveLayer(nominalCover, nRebars=None, rebarsDiam=None, nominalLatCover=None)
Constructs a ReinfRow with the given data and appends it to the

reinforcement in the positive side of the section.

Parameters

  • nominalCover – nominal cover [m]

  • nRebars – number of rebars, if None pick the last one.

  • rebarsDiam – bar diameter [m], if None pick the last one.

  • nominalLatCover – nominal lateral cover [m], if None pick the last one.

appendPositiveRow(rebarRow: materials.sections.fiber_section.def_simple_RC_section.ReinfRow)
Constructs append the giver ReinfRow to the reinforcement in the

positive side of the section.

RebarRow

row of reinforcement bars.

appendRow(positiveReinf, rebarRow: materials.sections.fiber_section.def_simple_RC_section.ReinfRow)
Constructs append the giver ReinfRow to the reinforcement in the

positive (positiveReinf==True) or negative side of the section.

Parameters

positiveReinf – if true append to positive reinforcement otherwise to negative reinforcement.

RebarRow

row of reinforcement bars.

centerRebarsNeg()

centers in the width of the section the rebars placed in the negative face

centerRebarsPos()

centers in the width of the section the rebars placed in the positive face

clearSectionGeometry()

Clear the XC section geometry object previously defined for this section.

computeRebarPositions()

Compute the positions of the reinforcement.

defSectionGeometry(preprocessor, matDiagType)

Define the XC section geometry object for a reinforced concrete section

Parameters

  • preprocessor – preprocessor of the finite element problem.

  • matDiagType – type of stress-strain diagram (“k” for characteristic diagram, “d” for design diagram)

defineMainReinforcement(nominalCover, fiStirr, topLayersDiameters=[0.012, None], bottomLayersDiameters=[0.012, None], lateralLayersDiameters=[0.01, None], nRebarsHoriz=3, nRebarsVert=2)

Define the reinforcement of the given RC section.

Parameters

  • nominalCover – nominal concrete cover.

  • fiStirr – diameter of the stirrups.

  • topLayersDiameters – diameters of the first and second top reinforcement layers (if None => no layer).

  • bottomLayersDiameters – diameters of the first and second bottom reinforcement layers (if None => no layer).

  • lateralLayersDiameters – diameters of the exterior and interior lateral reinforcement layers (if diameter[i]==None => no i-th layer).

  • nRebarsHoriz – number of horizontal rebars.

  • nRebarsVert – number of vertical rebars.

defineShearReinforcementYZ(nShReinfBranchesY=2, fiStirrY=0.008, spacingY=0.15, nShReinfBranchesZ=2, fiStirrZ=0.008, spacingZ=0.15)

Define the shear reinforcement of the RC section.

Parameters

  • nShReinfBranchesY – number of branches (Y direction).

  • fiStirrY – diameter of the stirrups (Y direction).

  • spacingY – stirrups spacing (Y direction).

  • nShReinfBranchesZ – number of branches (Z direction).

  • fiStirrZ – diameter of the stirrups (Z direction).

  • spacingZ – stirrups spacing (Z direction).

flipReinforcement()

Flip the reinforcement top<–>bottom.

getAc()

Returns the cross-sectional area of the section

getAreaHomogenizedSection()

Return the area of the homogenized section.

getAsNeg()

returns the cross-sectional area of the rebars in the negative face

getAsPos()

returns the cross-sectional area of the rebars in the positive face.

getCopy()

Returns a deep enough copy of the object.

getCover()

returns a list with the cover of bars for each row of bars in local positive face.

getCoverNeg()

returns a list with the cover of bars for each row of bars in local negative face.

getCoverPos()

returns a list with the cover of bars for each row of bars in local positive face.

getDiamNeg()

returns a list with the bar diameter for each row of bars in local negative face.

getDiamPos()

returns a list with the bar diameter for each row of bars in local positive face.

getDiameters()

returns a list with the bar diameter for each row of bars.

getDict()

Return a dictionary with the values of the object members.

getI()

Returns the second moment of area about the middle axis parallel to the width

getIyHomogenizedSection()

returns the second moment of area about the axis parallel to the section depth through the center of gravity

getIy_RClocalYax()

returns the second moment of area about the middle axis parallel to the depth (RClocalYaxis)

getIzHomogenizedSection()

returns the second moment of area about the axis parallel to the section width through the center of gravity

getIz_RClocalZax()

returns the second moment of area about the middle axis parallel to the width (RClocalZaxis)

getLatCover()

returns a list with the lateral cover of bars for each row of bars.

getLatCoverNeg()

returns a list with the lateral cover of bars for each row of bars in local negative face.

getLatCoverPos()

returns a list with the lateral cover of bars for each row of bars in local positive face.

getMinCover()

return the minimal cover of the reinforcement.

getNBar()

returns a list with the number of bars for each row of bars.

getNBarNeg()

returns a list with the number of bars for each row of bars in local negative face.

getNBarPos()

returns a list with the number of bars for each row of bars in local positive face.

getNegReinforcementIz(hCOG, n=1.0)
Return the second moment of inertia of the reinforcement in the

negative side.

Parameters

  • hCOG – distance from the section bottom to its center of gravity.

  • n – homogenizatrion coefficient.

getNegRowsCGcover()

returns the distance from the center of gravity of the negative rebars to the negative face of the section

getNominalLatCover()

returns a list with the lateral cover of bars for each row of bars.

getPosReinforcementIz(hCOG, n=1.0)
Return the second moment of inertia of the reinforcement in the

positive side.

Parameters

  • hCOG – distance from the section bottom to its center of gravity.

  • n – homogenizatrion coefficient.

getPosRowsCGcover()

returns the distance from the center of gravity of the positive rebars to the positive face of the section.

getRoughVcuEstimation()

returns a minimal value (normally shear strength will be greater) of the shear strength of the concrete section Vcu expressed in newtons.

getSNeg()

returns a list with the distance between bars for each row of bars in local negative face.

getSPos()

returns a list with the distance between bars for each row of bars in local positive face.

getStressCalculator()
getTorsionalThickness()

Return the section thickness for torsion.

getYAsNeg()

returns the local Y coordinate of the center of gravity of the rebars in the negative face

getYAsPos()

returns the local Y coordinate of the center of gravity of the rebars in the positive face.

hAsNeg()

Return the distance from the bottom fiber to the centre of gravity of the rebars in the positive face.

hAsPos()

Return the distance from the bottom fiber to the centre of gravity of the rebars in the positive face.

hCOGHomogenizedSection()

Return the distance from the bottom fiber to the centre of gravity of the homogenized section.

iyHomogenizedSection()

Return the radius of gyration of the section around the axis parallel to the section depth that passes through section centroid.

report(os=<_io.TextIOWrapper name='<stdout>' mode='w' encoding='utf-8'>, indentation='')

Get a report of the object contents.

setFromDict(dct)

Set the member values from those in the given dictionary.

class materials.sections.fiber_section.def_simple_RC_section.RCSectionBase(sectionDescr=None, concrType=None, reinfSteelType=None, nDivIJ=10, nDivJK=10)

Bases: object

Base class for reinforced concrete sections.

Variables

  • sectionDescr – section description.

  • fiberSectionParameters – Parameters needed to create a reinforced concrete fiber section.

  • fiberSectionRepr – fiber model of the section.

clearDiagrams()

Clear previously defined diagrams.

clearFiberSection()

Clear the previously defined fiber section.

clearRCSection()
Clear a previously defined XC reinforced concrete section (possibly

with a different preprocessor, which can lead to errors).

Parameters

  • preprocessor – preprocessor of the finite element problem.

  • matDiagType – type of stress-strain diagram (“k” for characteristic diagram, “d” for design diagram)

clearShearResponse()

Clear the shear/torsional response of the section.

Parameters

preprocessor – preprocessor of the finite element problem.

defDiagrams(preprocessor, matDiagType)

Stress-strain diagrams definition.

Parameters

  • preprocessor – preprocessor of the finite element problem.

  • matDiagType – type of stress-strain diagram (“k” for characteristic diagram, “d” for design diagram)

defFiberSection(preprocessor)

Define fiber section from geometry data.

Parameters

preprocessor – preprocessor of the finite element problem.

defFiberSection2d(preprocessor)

Define 2D fiber section from geometry data.

Parameters

preprocessor – preprocessor of the finite element problem.

defInteractionDiagram(preprocessor)

Defines 3D interaction diagram.

Parameters

preprocessor – preprocessor of the finite element problem.

defInteractionDiagramNMy(preprocessor)

Defines N-My interaction diagram.

Parameters

preprocessor – preprocessor of the finite element problem.

defInteractionDiagramNMz(preprocessor)

Defines N-Mz interaction diagram.

Parameters

preprocessor – preprocessor of the finite element problem.

defInteractionDiagramParameters(preprocessor)

parameters for interaction diagrams.

Parameters

preprocessor – preprocessor of the finite element problem.

defRCSection(preprocessor, matDiagType)

Definition of an XC reinforced concrete section.

Parameters

  • preprocessor – preprocessor of the finite element problem.

  • matDiagType – type of stress-strain diagram (“k” for characteristic diagram, “d” for design diagram)

defRCSection2d(preprocessor, matDiagType)

Definition of a 2D reinforced concrete section.

Parameters

  • preprocessor – preprocessor of the finite element problem.

  • matDiagType – type of stress-strain diagram (“k” for characteristic diagram, “d” for design diagram)

defShearResponse(preprocessor)

Define the shear/torsional response of the section.

Parameters

preprocessor – preprocessor of the finite element problem.

defShearResponse2d(preprocessor)

Define the shear response of the 2D section.

Parameters

preprocessor – preprocessor of the finite element problem.

getConcreteDiagram(preprocessor)

Return the concrete stress-strain diagram.

Parameters

preprocessor – preprocessor of the finite element problem.

getConcreteType()

returns the concrete type of this sections.

getCopy()

Returns a copy of the object.

getCrossSectionFigureFileName(outputPath=None)

Return the file name to use for the cross-section graphics.

Parameters

outputPath – directory to write the section plot into.

getDict()

Put member values in a dictionary.

getElasticMaterialData(overrideRho=None)

Return an elastic material constitutive model.

Parameters

overrideRho – if defined (not None), override the value of the material density.

getHomogenizationCoefficient()

Return the homogenization coefficient of the section.

getMainReinforcementArea()

Return the total area of the main reinforcement.

getMaterialHandler()

Return the material handler used to define the XC materials corresponding to this section object.

getNDivIJ()

Return the number of cells in IJ (width or radial) direction.

getNDivJK()

Return the number of cells in JK (height or tangential) direction.

getNonDimensionalAxialForce(Nd)
Return the valud of the non-dimensional axial force corresponding

to the given axial force according to clause 43.1.2 of EHE-08.

Parameters

Nd – design value of the axial force.

getReinfSteelType()

returns the type of the reinforcing steel in this sections.

getSectionGeometry()

Return the geometry defined for this section in XC.

getSteelDiagram(preprocessor)

Return the reinforcing steel stress-strain diagram.

Parameters

preprocessor – preprocessor of the finite element problem.

getSteelEquivalenceCoefficient(preprocessor)

Return the steel equivalence coefficient: Es/Ec.

Parameters

preprocessor – preprocessor of the finite element problem.

gmSectionName()

returns the name of the geometric section

isCircular()

Return true if it’s a circular section.

Parameters

preprocessor – preprocessor of the finite element problem.

izHomogenizedSection()

Return the radius of gyration of the section around the axis parallel to the section width that passes through section centroid.

latexReport(os=<_io.TextIOWrapper name='<stdout>' mode='w' encoding='utf-8'>, graphicWidth='70mm', outputPath=None, includeGraphicsPath=None, preprocessor=None, matDiagType='k')

Write a report of the object in LaTeX format.

Parameters

  • os – output stream.

  • graphicWidth – width for the cross-section graphic.

  • outputPath – directory to write the section plot into.

  • includeGraphicsPath – directory to use in the latex includegraphics command.

  • preprocessor – pre-processor of the FE problem.

  • matDiagType – diagram type; if “k” use the diagram corresponding to characteristic values of the material, if “d” use the design values one.

latexReportMainReinforcement(os=<_io.TextIOWrapper name='<stdout>' mode='w' encoding='utf-8'>)

Write a report of the main reinforcement in LaTeX format.

Parameters

os – output stream.

latexReportMainReinforcementLayer(reinfLayer, concreteArea, os=<_io.TextIOWrapper name='<stdout>' mode='w' encoding='utf-8'>)
Write a report of the reinforcement layer argument

in LaTeX format.

Parameters

os – output stream.

classmethod newFromDict(dct=None)

Builds a new object from the data in the given dictionary.

Parameters

  • cls – class of the object itself.

  • dct – dictionary contaning the data.

pdfReport(outputFileName: Optional[str] = None, graphicWidth='70mm', showPDF=False, keepPDF=True, preprocessor=None, matDiagType='k')

Write a report of the object in LaTeX format.

Parameters

  • outputFileName – name of the output file.

  • graphicWidth – width for the cross-section graphic.

  • showPDF – if true display the PDF output on the screen.

  • keepPDF – if true don’t remove the PDF output.

  • preprocessor – pre-processor of the FE problem.

  • matDiagType – diagram type; if “k” use the diagram corresponding to characteristic values of the material, if “d” use the design values one.

plot(preprocessor, matDiagType='k')

Get a drawing of the section using matplotlib.

Parameters

  • preprocessor – preprocessor of the finite element problem.

  • matDiagType –

    type of stress-strain diagram (“k” for characteristic diagram,

    ”d” for design diagram)

report(os=<_io.TextIOWrapper name='<stdout>' mode='w' encoding='utf-8'>, indentation='')

Get a report of the object contents.

Parameters

os – output stream.

setFromDict(dct)

Read member values from a dictionary.

Parameters

dct – Python dictionary containing the member values.

subplot(ax, preprocessor, matDiagType='k')

Put the section drawing in the subplot argument.

Parameters

  • ax – matplotlib subplot.

  • preprocessor – pre-processor of the finite element problem.

  • matDiagType – type of stress-strain diagram (“k” for characteristic diagram, “d” for design diagram)

writeDXF(modelSpace, concreteLayerName='concrete', reinforcementLayerName='reinforcement')
Writes the shape contour in the model

space argument.

Parameters

  • modelSpace – ezdxf model space to write into.

  • concretLayerName – DXF layer name for concrete material.

  • reinforcementLayerName – DXF layer name for steel material.

materials.sections.fiber_section.def_simple_RC_section.RebarRow2ReinfRow(rebarRow, width=1.0, nominalLatCover=0.03)
Returns a ReinfRow object from a RebarRow object

as defined in the rebar_family module.

Parameters

  • rebarRow – RebarRow object.

  • width – width of the cross-section (defautls to 1 m)

  • nominalLatCover – nominal lateral cover (only considered if nRebars is defined, defaults to 0.03)

class materials.sections.fiber_section.def_simple_RC_section.ReinfRow(rebarsDiam=None, areaRebar=None, rebarsSpacing=None, nRebars=None, width=1.0, nominalCover=0.03, nominalLatCover=0.03)

Bases: object

Definition of the variables that make up a family (row) of main (longitudinal) reinforcing bars.

Variables

  • rebarsDiam – diameter of the bars (if omitted, the diameter is calculated from the rebar area)

  • areaRebar – cross-sectional area of the bar (if omitted, the area is calculated from the rebar diameter)

  • rebarsSpacing – spacing between bars (not considered if nRebars is defined)

  • nRebars – number of rebars to be placed in the row (>1)

  • width – width of the cross-section (defautls to 1m)

  • cover – concrete cover.

centerRebars(width)

center the row of rebars in the width of the section

defCircularLayer(reinforcement, code, diagramName, extRad, initAngle=0.0, finalAngle=6.283185307179586)
Definition of a circular reinforcement layer in the XC section

geometry object between the angle arguments.

Parameters

  • reinforcement – XC section geometry reinforcement.

  • code – identifier for the layer.

  • diagramName – name of the strain-stress diagram of the steel.

  • extRad – concrete external radius.

  • initAngle – initial angle.

  • finalAngle – final angle.

defStraightLayer(reinforcement, layerCode, diagramName, p1, p2)
Definition of a straight reinforcement layer in the XC section

geometry object between the 2d positions p1 and p2.

Parameters

  • reinforcement – XC section geometry reinforcement.

  • layerCode – identifier for the layer.

  • diagramName – name of the strain-stress diagram of the steel.

  • p1 – first point of the layer.

  • p2 – last point of the layer.

getAs()

Returns the total cross-sectional area of reinforcing steel in the family.

getCopy()

Return a copy of this object.

getDict()

Return a dictionary containing the object data.

getI()

Return the moment of inertia around the axis containing the bar centers.

getNominalCover()

Return the nominal cover of the reinforcement bars.

getNominalLatCover()

Return the nominal cover of the reinforcement bars.

classmethod newFromDict(dct=None)

Builds a new object from the data in the given dictionary.

Parameters

  • cls – class of the object itself.

  • dct – dictionary contaning the data.

report(os=<_io.TextIOWrapper name='<stdout>' mode='w' encoding='utf-8'>, indentation='')

Get a report of the object contents.

setFromDict(dct)

Set the data values from the dictionary argument.

Parameters

dct – dictionary containing the values of the object members.

setNumberOfBars(nRebars: int, width: float, nominalLatCover: float)

Set the number of rebars.

Parameters

  • nRebars – number of rebars.

  • width – width occupied by the rebars.

  • nominalLatCover – nominal lateral cover.

setRebarArea(rebarArea)

Set the area of the rebars.

Parameters

rebarArea – area of the rebars.

setRebarDiameter(rebarDiameter)

Set the diameter of the rebars.

Parameters

rebarDiameter – diameter of the rebars.

setSpacing(rebarsSpacing: float, width: float)

Set the space between rebar axes.

Parameters

  • rebarsSpacing – spacing between bars.

  • width – width occupied by the rebars.

class materials.sections.fiber_section.def_simple_RC_section.ShearReinforcement(familyName=None, nShReinfBranches=0, areaShReinfBranch=0.0, shReinfSpacing=0.2, angAlphaShReinf=1.5707963267948966, angThetaConcrStruts=0.7853981633974483)

Bases: object

Definition of the variables that make up a family of shear reinforcing bars.

Variables

  • familyName – name identifying the family of shear reinforcing bars.

  • nShReinfBranches – number of effective branches.

  • areaShReinfBranch – area of the shear reinforcing bar [in the unit of area of the model].

  • shReinfSpacing – longitudinal distance between transverse reinforcements [in the unit of length of the model]

  • angAlphaShReinf – angle between the shear reinforcing bars and the axis of the member expressed in radians.

  • angThetaConcrStruts – angle between the concrete’s compression struts and the axis of the member expressed in radians.

getAs()

returns the area per unit length of the family of shear reinforcements.

getDiameter()

Return the diameter of the bars from its area.

getDict()

Return a dictionary containing the object data.

latexReport(width, os=<_io.TextIOWrapper name='<stdout>' mode='w' encoding='utf-8'>)

Write a report of the object in LaTeX format.

Parameters

  • width – section width.

  • os – output stream.

classmethod newFromDict(dct=None)

Builds a new object from the data in the given dictionary.

Parameters

  • cls – class of the object itself.

  • dct – dictionary contaning the data.

report(os=<_io.TextIOWrapper name='<stdout>' mode='w' encoding='utf-8'>, indentation='')

Get a report of the object contents.

setFromDict(dct)

Set the data values from the dictionary argument.

Parameters

dct – dictionary containing the values of the object members.

class materials.sections.fiber_section.def_simple_RC_section.TorsionReinforcement(familyName=None, A1=0.0, nShReinfBranches=0, areaShReinfBranch=0.0, shReinfSpacing=0.2, angThetaConcrStruts=0.7853981633974483)

Bases: materials.sections.fiber_section.def_simple_RC_section.ShearReinforcement

Definition of the variables that make up a family of torsion reinforcing bars.

Variables

A1 – Area of the torsion longitudinal reinforcements.

getAt()

returns the area of the reinforcements used as hoops or transverse reinforcement.

getAtDiameter()

Return the diameter of the einforcements used as hoops or transverse reinforcement.

getDict()

Return a dictionary containing the object data.

latexReport(width, os=<_io.TextIOWrapper name='<stdout>' mode='w' encoding='utf-8'>)

Write a report of the object in LaTeX format.

Parameters

  • width – section width.

  • os – output stream.

report(os=<_io.TextIOWrapper name='<stdout>' mode='w' encoding='utf-8'>, indentation='')

Get a report of the object contents.

setFromDict(dct)

Set the data values from the dictionary argument.

Parameters

dct – dictionary containing the values of the object members.

materials.sections.fiber_section.def_simple_RC_section.compute_element_rc_sections(elements, propName=None)
Return a list containing the reinforced concrete sections computed

from the values of the properties defined in the elements argument. Those properties are:

  • baseSection: RCSectionBase derived object containing the geometry

    and the material properties of the reinforcec concrete section.

  • reinforcementUpVector: reinforcement “up” direction which defines

    the position of the positive reinforcement (bottom) and the negative reinforcement (up).

  • reinforcementIVector: (for slabs) direction corresponding to

    the first RC section

  • bottomReinforcement: LongReinfLayers objects defining the

    reinforcement at the bottom of the section.

  • topReinforcement: LongReinfLayers objects defining the

    reinforcement at the top of the section.

  • shearReinforcement: ShearReinforcement objects defining the

    reinforcement at the bottom of the section.

Parameters

  • elements – elements for which the reinforce concrete sections will be computed.

  • propName – name of the property that stores the section names.

materials.sections.fiber_section.def_simple_RC_section.compute_element_reinforcement(element)
Return a list containing the reinforced concrete sections from the

properties defined in the elements argument. Those properties are:

  • baseSection: RCSectionBase derived object containing the geometry

    and the material properties of the reinforcec concrete section.

  • reinforcementUpVector: reinforcement “up” direction which defines

    the position of the positive reinforcement (bottom) and the negative reinforcement (up).

  • reinforcementIVector: (for slabs) direction corresponding to

    the first RC section

  • bottomReinforcement: LongReinfLayers objects defining the

    reinforcement at the bottom of the section.

  • topReinforcement: LongReinfLayers objects defining the

    reinforcement at the top of the section.

  • shearReinforcement: ShearReinforcement objects defining the

    reinforcement at the bottom of the section.

Parameters

element – element for which the reinforce concrete sections will be computed.

materials.sections.fiber_section.def_simple_RC_section.rebLayerByNumFi_m(n, fi, c, latC, L)

Defines a layer of main reinforcement bars with a fixed number of rebars. Spacing is calculated so that the rebars (and two lateral covers) are inserted in the length L passed as parameter.

Parameters

  • n – number of rebars

  • fi – bar diameter [m]

  • c – nominal cover [m]

  • latC – nominal lateral cover [m]

  • L – length where the n rebars and two lateral covers are inserted [m]

materials.sections.fiber_section.def_simple_RC_section.rebLayerByNumFi_mm(n, fi, c, latC, L)

Defines a layer of main reinforcement bars with a fixed number of rebars. Spacing is calculated so that the rebars (and two lateral covers) are inserted in the length L passed as parameter.

Parameters

  • n – number of rebars

  • fi – bar diameter [mm]

  • c – nominal cover [mm]

  • latC – nominal lateral cover [mm]

  • L – length where the n rebars and two lateral covers are inserted [mm]

materials.sections.fiber_section.def_simple_RC_section.rebLayer_m(fi, s, c)

Defines a layer of main reinforcement bars, given the spacement.

Parameters

  • fi – bar diameter [m]

  • s – spacing [m]

  • c – cover [m] (nominal cover)

materials.sections.fiber_section.def_simple_RC_section.rebLayer_mm(fi, s, c)

Defines a layer of main reinforcement bars, given the spacement.

Parameters

  • fi – bar diameter [mm]

  • s – spacing [mm]

  • c – cover [mm] (nominal cover)

materials.sections.fiber_section.def_simple_RC_section.write_dxf(geomSection, modelSpace, concreteLayerName='concrete', reinforcementLayerName='reinforcement')

Writes the shape contour in the given DXF model space.

Parameters

  • modelSpace – ezdxf model space to write into.

  • concretLayerName – DXF layer name for concrete material.

  • reinforcementLayerName – DXF layer name for steel material.

Definition of column RC sections

Definition of the variables that make up a reinforced concrete section with reinforcement symmetric in both directions (as usual in columns)

class materials.sections.fiber_section.def_column_RC_section.ColumnMainReinforcement

Bases: object

Main (longitudinal) rebars of a column.

Variables

  • cover – concrete clear cover of main reinforcement

  • nRebarsWidth – number of rebars in the width direction of the section (each face)

  • areaRebarWidth – cross sectional area of each rebar in width direction

  • nRebarsDepth – number of rebars in the depth direction of the section (each face)

  • areaRebarDepth – cross sectional area of each rebar in depth direction

class materials.sections.fiber_section.def_column_RC_section.RCCircularSection(name='noName', sectionDescr=None, Rext=0.25, Rint=0.0, concrType=None, reinfSteelType=None)

Bases: materials.sections.fiber_section.def_simple_RC_section.RCSectionBase, materials.sections.section_properties.CircularSection

Base class for rectangular reinforced concrete sections.

Variables

  • mainReinf – layers of main reinforcement.

  • shReinf – record of type ShearReinforcement defining the shear reinforcement.

clearSectionGeometry()

Clear the XC section geometry object previously defined for this section.

defConcreteRegion()
defElasticSection1d(preprocessor, overrideRho=None, reductionFactor=1.0)

Return an elastic section appropriate for truss analysis.

Parameters

  • preprocessor – preprocessor of the finite element problem.

  • overrideRho – if defined (not None), override the value of the material density.

  • reductionFactor – factor that divides the concrete elastic modulus to simulate the effect of cracking, normally between 1.0 and 7.0.

defElasticSection2d(preprocessor, majorAxis=True, overrideRho=None, reductionFactor=1.0)

Return an elastic section appropriate for 2D beam analysis

Parameters

  • preprocessor – XC preprocessor for the finite element problem.

  • majorAxis – true if bending occurs in the section major axis.

  • overrideRho – if defined (not None), override the value of the material density.

  • reductionFactor – factor that divides the concrete elastic modulus to simulate the effect of cracking, normally between 1.0 and 7.0.

defElasticSection3d(preprocessor, overrideRho=None, reductionFactor=1.0)

Return an elastic section appropriate for 3D beam analysis

Parameters

  • preprocessor – preprocessor of the finite element problem.

  • overrideRho – if defined (not None), override the value of the material density.

  • reductionFactor – factor that divides the concrete elastic modulus to simulate the effect of cracking, normally between 1.0 and 7.0.

defElasticShearSection2d(preprocessor, majorAxis=True, overrideRho=None, reductionFactor=1.0)
elastic section appropriate for 2D beam analysis, including

shear deformations.

Parameters

  • preprocessor – XC preprocessor for the finite element problem.

  • majorAxis – true if bending occurs in the section major axis.

  • overrideRho – if defined (not None), override the value of the material density.

  • reductionFactor – factor that divides the concrete elastic modulus to simulate the effect of cracking, normally between 1.0 and 7.0.

defElasticShearSection3d(preprocessor, overrideRho=None, reductionFactor=1.0)
elastic section appropriate for 3D beam analysis, including shear

deformations

Parameters

  • preprocessor – XC preprocessor for the finite element problem.

  • overrideRho – if defined (not None), override the value of the material density.

  • reductionFactor – factor that divides the concrete elastic modulus to simulate the effect of cracking, normally between 1.0 and 7.0.

defSectionGeometry(preprocessor, matDiagType)

Define the XC section geometry object for this reinforced concrete section

Parameters

  • preprocessor – XC preprocessor for the finite element problem.

  • matDiagType – type of stress-strain diagram (“k” for characteristic diagram, “d” for design diagram)

getAc()

Returns the cross-sectional area of the section

getAreaHomogenizedSection()

Return the area of the homogenized section.

getContour()

Return the vertices of the section contour.

getDict()

Return a dictionary containing the object data.

getI()

Returns the second moment of area about the middle axis parallel to the width

getIzHomogenizedSection()

returns the second moment of area about the axis parallel to the section width through the center of gravity

getMinCover()

return the minimal cover of the reinforcement.

getReinforcementIz(n=1.0)

Return the second moment of inertia of the reinforcement.

Parameters

  • hCOG – distance from the section bottom to its center of gravity.

  • n – homogenizatrion coefficient.

getRespT(preprocessor)

Material for modeling torsional response of section

getRespVy(preprocessor)

Material for modeling Y shear response of section

getRespVz(preprocessor)

Material for modeling Z shear response of section

getShearReinfY()

Return the shear reinforcement for Vy.

getShearReinfZ()

Return the shear reinforcement for Vz.

getShearReinforcementArea()

Return the total shear reinforcement area by member unit length.

getTorsionalThickness()

Return the section thickness for torsion.

getTotalReinforcementArea()

Return the total reinforcement area by member unit length.

isCircular()

Return true if it’s a circular section.

latexReportGeometry(os=<_io.TextIOWrapper name='<stdout>' mode='w' encoding='utf-8'>)

Write geometry data in LaTeX format.

Parameters

os – output stream.

latexReportShearReinforcement(os=<_io.TextIOWrapper name='<stdout>' mode='w' encoding='utf-8'>)

Write shear reinforcement report in LaTeX format.

Parameters

os – output stream.

report(os=<_io.TextIOWrapper name='<stdout>' mode='w' encoding='utf-8'>, indentation='')

Get a report of the object contents.

Parameters

os – output stream.

setFromDict(dct)

Set the data values from the dictionary argument.

Parameters

dct – dictionary containing the values of the object members.

class materials.sections.fiber_section.def_column_RC_section.RCRectangularColumnSection(sectionDescr=None)

Bases: materials.sections.fiber_section.def_simple_RC_section.BasicRectangularRCSection

Definition of the variables that make up a reinforced concrete section with reinforcement symmetric in both directions (as usual in columns)

Variables

mainBars – object of type ColumnMainReinforcement defining longitudinal reinforcement.

defSectionGeometry(preprocessor, matDiagType)

Returns a reinforced concrete section with reinforcement symmetric in both directions (as usual in columns)

Parameters

  • preprocessor – XC preprocessor for the finite element problem.

  • matDiagType – type of stress-strain diagram (=”k” for characteristic diagram, =”d” for design diagram)

Plot fiber seccions

class materials.sections.fiber_section.plot_fiber_section.FibSectFeaturesToplot(fiberSection, colorNeutralAxis=None, colorBendingPlane=None, colorCompressionPlane=None, colorTensionPlane=None, colorIntForcAxis=None, colorLeverArm=None, colorEffDepth=None, colorEffConcrArea=None, MaxEffHeight=None, colorGrossEffConcrAreaContours=None)

Bases: object

Class to generate python plots of the selected features associated with a fiber section.

Variables

  • fiberSection – fiber-section to plot

  • colorNeutralAxis – color to display the Neutral axis (defaults to None)

  • colorBendingPlane – color to display the beding plane (defaults to None)

  • colorCompressionPlane – color to display the compression plane (defaults to None)

  • colorTensionPlane – color to display the tension plane (defaults to None)

  • colorIntForcAxis – color to display the internal forces axis (defaults to None)

  • colorLeverArm – color to display the lever arm (defaults to None)

  • colorEffDepth – color to display the effective depth (defaults to None)

  • colorEffConcrArea – color to display the limit of the effective concrete area (defaults to None)

  • MaxEffHeight – maximum effective height to calculate effective concrete area (defaults to None)

  • colorGrossEffConcrAreaContours – color to display the contours of the gross effective concrete area (defaults to None)

generatePlot()
materials.sections.fiber_section.plot_fiber_section.data_axis_to_pyplot(axis, contour)

Return the lists [x1,x2] and [y1,y2] with the coordinates of the start and end points of the segment of axis inside the fiberSect contour passed as parameters.

materials.sections.fiber_section.plot_fiber_section.data_xcpolygon_to_pyplot(XCpolygon)

Return the lists [x1,x2,x3,…] and [y1,y2,y3,…] with the coordinates of the vertexes of the XCpolygon passed as parameter.

materials.sections.fiber_section.plot_fiber_section.data_xcsegment_to_pyplot(XCsegment)

Return the lists [x1,x2] and [y1,y2] with the coordinates of the start and end points of the XCsegment passed as parameter.

materials.sections.fiber_section.plot_fiber_section.eps2png(inputFileName, outputFileName=None)
Convert the encapsulated Postscript input image into a PNG image

with a “decent” resolution.

Parameters

  • inputFileName – name of the input file.

  • outputFileName – name of the output file.

materials.sections.fiber_section.plot_fiber_section.mplot_section_geometry(ax, sectionGeometry)

Plot the geometry of the section using matplotlib.

Parameters

  • ax – matplotlib subplot.

  • sectionGeometry – geometry of the RC section.

materials.sections.fiber_section.plot_fiber_section.mplot_section_reinforcement(ax, reinforcement)

Plot the geometry of the section using matplotlib.

Parameters

  • ax – matplotlib subplot.

  • reinforcement – reinforcement layers to draw.

materials.sections.fiber_section.plot_fiber_section.plot_reinforcement(reinforcement, ctx)

draw section rebars in a postcript file.

Parameters

  • reinforcement – reinforcement to plot.

  • ctx – cairo context.

materials.sections.fiber_section.plot_fiber_section.plot_section_geometry(geomSection, path)

draws section geometry in a postscript file.

Parameters

  • geomSection – section geometry to draw.

  • path – output file path.

Report of cross-section mechanical properties

section_report.py: report describing RC cross sections mechanical properties.

class materials.sections.fiber_section.section_report.MainReinforcementLayer(reinfLayer)

Bases: object

Parameters for each layer of main reinforcement

texWrite(archTex, areaHorm)
class materials.sections.fiber_section.section_report.SectionInfo(preprocessor, sectName, sectDescr, concrete, rfSteel, concrDiag, rfStDiag, geomSection, width, depth, sectGrWth='80mm')

Bases: object

Obtains the fiber section parameters for writing its report page

Variables

  • preprocessor – preprocessor

  • sectName – section name (used as title for the table and as caption, also)

  • sectDescr – section description (used as subtitle for the table}

  • concrete – concrete (its name and elastic modulus are reported on the table)

  • rfSteel – reinforcing steeĺ (its name and elastic modulus are reported on the table)

  • concrDiag – concrete diagram

  • rfStDiag – reinforcing steel diagram

  • geomSection – material fiber section

  • width – width of the rectangular section (reported on the table and used to calculate the torsional inertia, also)

  • depth – depth of the rectangular section (reported on the table and used to calculate the torsional inertia, also)

  • G,A,I – match center of gravity, area and inertia tensor, respectively

  • B,H – match gross and homogenized sections, respectively

  • cover – refers to effective cover

  • sectGrWth – with of the section graphic (defaults to ‘80mm’)

writeReport(archTex, pathFigure, rltvPathFigure)
class materials.sections.fiber_section.section_report.SectionInfoHASimple(preprocessor, sectHASimple, sectGrWth='80mm')

Bases: materials.sections.fiber_section.section_report.SectionInfo

Obtains the parameters of a HASimple fiber section for writing its report page

Variables

  • preprocessor – preprocessor

  • sectHASimple – fiber section defined as a HASimple

  • sectGrWth – with of the section graphic (defaults to ‘80mm’)

materials.sections.fiber_section.section_report.writeMainReinforcement(listaFamMainReinforcement, concreteArea, archTex)

Write rows describing the layers of the main reinforcement.

Parameters

  • listaFamMainReinforcement – list of reinforcement layers to describe.

  • concreteArea – concrete area.

  • archTex – output file.

materials.sections.fiber_section.section_report.writeShearReinforcement(recordShearReinf, archTex, width)