SetDiaphragmEccentricityOverride {Auto Seismic}

SetDiaphragmEccentricityOverride

Syntax

SapObject.SapModel.LoadPatterns.AutoSeismic.SetDiaphragmEccentricityOverride

VB6 Procedure

Function SetDiaphragmEccentricityOverride(ByVal Name As String, ByVal Diaph As String, ByVal Eccen As Double, Optional ByVal Delete As Boolean = False) As Long

Parameters

Name

The name of an existing Quake-type load pattern that has an auto seismic load assigned.

Diaph

The name of an existing special rigid diaphragm constraint, that is, a diaphragm constraint with the following features:

1. The constraint type is CONSTRAINT_DIAPHRAGM = 2.

2. The constraint coordinate system is Global.

3. The constraint axis is Z.

Eccen

The eccentricity applied to the specified diaphragm. [L]

Delete

If this item is True, the eccentricity override for the specified diaphragm is deleted.

Remarks

This function assigns diaphragm eccentricity overrides for auto seismic loads. This function does not apply for User Load type auto seismic loads.

The function returns zero if the overrides are successfully assigned; otherwise it returns a nonzero value.

VBA Example

Sub AssignSeismicDiaphragmEccentricityOverride()

'dimension variables

Dim SapObject as cOAPI

Dim SapModel As cSapModel

Dim ret As Long

'create Sap2000 object

Set SapObject = CreateObject("CSI.SAP2000.API.SapObject")

'start Sap2000 application

SapObject.ApplicationStart

'create SapModel object

Set SapModel = SapObject.SapModel

'initialize model

ret = SapModel.InitializeNewModel

'create model from template

ret = SapModel.File.New3DFrame(BeamSlab, 2, 144, 3, 336, 2, 432)

'define diaphragm constraints

ret = SapModel.ConstraintDef.SetDiaphragm("Diaph1", Z)

ret = SapModel.ConstraintDef.SetDiaphragm("Diaph2", Z)

'assign points to diaphragm

ret = SapModel.SelectObj.ClearSelection

ret = SapModel.SelectObj.PlaneXY("2")

ret = SapModel.PointObj.SetConstraint("", "Diaph1", SelectedObjects)

ret = SapModel.SelectObj.ClearSelection

ret = SapModel.SelectObj.PlaneXY("3")

ret = SapModel.PointObj.SetConstraint("", "Diaph2", SelectedObjects)

ret = SapModel.SelectObj.ClearSelection

'add new load pattern

ret = SapModel.LoadPatterns.Add("EQX", LTYPE_QUAKE)

'assign BOCA96 parameters

ret = SapModel.LoadPatterns.AutoSeismic.SetBOCA96("EQX", 1, 0.05, 1, 0.035, 0, False, 0, 0, 0.4, 0.4, 1.5, 8)

'assign diaphragm eccentricity override

ret = SapModel.LoadPatterns.AutoSeismic.SetDiaphragmEccentricityOverride("EQX", "Diaph1", 50)

'close Sap2000

SapObject.ApplicationExit False

Set SapModel = Nothing

Set SapObject = Nothing

End Sub

Release Notes

Initial release in version 11.01.

Changed nomenclature from Load Cases, Analysis Cases and Response Combinations to Load Patterns, Load Cases and Load Combinations, respectively, in version 12.00.

Modified optional argument Delete to be ByVal in version 12.0.1.

See Also

GetDiaphragmEccentricityOverride

GetSpecialRigidDiaphragmList