Earthquake

Mode loads

actions.quake.write_loads_mode.write_loads_mode(preprocessor, fName, iModo, aceleraciones)

Write the equivalent static loads oftained for each node in the mode passed as parameter

seisme SIA

actions.quake.seismeSIA.S(soilClass)
parameter to obtain the elastic response spectrum according SIA 261

2014 (16.2 tableau 24).

Parameters

soilClass – soil class.

actions.quake.seismeSIA.Tb(soilClass)

wave pertiod Tb to obtain the elastic response spectrum according to SIA 261 2003 (16.2 table 25).

Parameters

soilClass – soil class.

actions.quake.seismeSIA.Tc(soilClass)

wave period Tc to obtain the elastic response spectrum. according SIA 261 2003 (16.2 table 25).

Parameters

soilClass – soil class.

actions.quake.seismeSIA.Td(soilClass)

wave pertiod Td to obtain the elastic response spectrum. according SIA 261 2003 (16.2 tableau 25).

Parameters

soilClass – soil class.

actions.quake.seismeSIA.alpha(soilClass)

alpha correction factor according SIA 261 2003 (16.4.4).

Parameters

soilClass – soil class.

actions.quake.seismeSIA.b1LowerLimitAppuiFixe(soilClass, accelTerrain, CO, a2, l)

minimal dimension for b1 in bridge support according to SIA 261 2003 (16.4.4 et Figure 15).

Parameters

  • soilClass – soil class.

  • accelTerrain – ground acceleration.

  • CO – building class.

  • l – bridge span.

actions.quake.seismeSIA.b1UpperLimitAppuiFixe(soilClass, accelTerrain, CO, a2, l)

maximal dimension for b1 in bridge support according SIA 261 2003 (16.4.4 et Figure 15).

Parameters

  • soilClass – soil class.

  • accelTerrain – ground acceleration.

  • CO – building class.

  • l – bridge span.

actions.quake.seismeSIA.b2LowerLimitAppuiFixe(soilClass, accelTerrain, CO, a1, l)

minimal dimension for b2 in bridge support according SIA 261 2003 (16.4.4 et Figure 15).

Parameters

  • soilClass – soil class.

  • accelTerrain – ground acceleration.

  • CO – building class.

  • l – bridge span.

actions.quake.seismeSIA.b2LowerLimitPontFlottant(soilClass, accelTerrain, CO, l)

Lower limit of bridge support dimension.

Parameters

  • soilClass – soil class.

  • accelTerrain – ground acceleration.

  • CO – building class.

  • l – bridge span.

actions.quake.seismeSIA.b2UpperLimitAppuiFixe(soilClass, accelTerrain, CO, a1, l)

maximal dimension for b2 in bridge support according SIA 261 2003 (16.4.4 et Figure 15).

Parameters

  • soilClass – soil class.

  • accelTerrain – ground acceleration.

  • CO – building class.

  • l – bridge span.

actions.quake.seismeSIA.b2UpperLimitPontFlottant(soilClass, accelTerrain, CO, l)

Upper limit of bridge support dimension.

Parameters

  • soilClass – soil class.

  • accelTerrain – ground acceleration.

  • CO – building class.

  • l – bridge span.

actions.quake.seismeSIA.bLowerLimitAppuiFixe(soilClass, accelTerrain, CO, a12, l)

Lower limit of bridge support dimension.

Parameters

  • soilClass – soil class.

  • accelTerrain – ground acceleration.

  • CO – building class.

  • l – bridge span.

actions.quake.seismeSIA.bUpperLimitAppuiFixe(soilClass, accelTerrain, CO, a12, l)

Upper limit of bridge support dimension.

Parameters

  • soilClass – soil class.

  • accelTerrain – ground acceleration.

  • CO – building class.

  • l – bridge span.

actions.quake.seismeSIA.designSpectrum(soilClass, accelTerrain, CO, T, q)
design spectrum for elastic response analysis according to

SIA 261 2014 (16.2.4.1).

Parameters

  • soilClass – soil class.

  • accelTerrain – ground acceleration.

  • CO – building class.

  • T – period.

actions.quake.seismeSIA.elasticReponseSpectrum(soilClass, viscousDamping, accelTerrain, T)

elastic response spectrum according SIA 261 2003 (16.2.3.1).

Parameters

  • soilClass – soil class.

  • viscousDamping – viscous damping.

  • accelTerrain – ground acceleration.

  • T – period.

actions.quake.seismeSIA.eta(viscousDamping)

correction coefficient “eta” to obtain the elastic response spectrum. according SIA 261 2003 (16.2.3.1).

actions.quake.seismeSIA.gammaF(CO)
importance factor for buildings and bridges according to

SIA 261 2003 (16.3.2 tableau 26).

Parameters

CO – building class.

actions.quake.seismeSIA.grounDisplacement(soilClass, accelTerrain, CO)

design ground displacement according SIA 261 2003 (16.2.4.3).

Parameters

  • soilClass – soil class.

  • accelTerrain – ground acceleration.

  • CO – building class.