GetIS8752015

GetIS8752015

Syntax

SapObject.SapModel.LoadPatterns.AutoWind.GetIS8752015

VB6 Procedure

Function GetIS8752015(ByVal Name As String, ByRef ExposureFrom 
 As Long, ByRef DirAngle As Double, ByRef Cpw As Double, ByRef Cpl As Double, 
 ByRef UserZ As Boolean, ByRef TopZ As Double, ByRef BottomZ As Double, 
 ByRef WindSpeed As Double, ByRef TerrainCategory As Long, ByRef ImportanceFactor 
 As Long, ByRef k1 As Double, ByRef k3 As Double, ByRef UserExposure As 
 Boolean) As Long

Parameters

Name

The name of an existing Wind-type load pattern with 
 an Indian IS 875:2015 auto wind assignment.

ExposureFrom

This is either 1 or 2, indicating the source of the 
 wind exposure.

1 = From extents of rigid 
 diaphragms

2 = From area objects

DirAngle

The direction angle for the wind load. This item applies 
 only when ExposureFrom = 1.

Cpw

The windward coefficient, Cp. This item applies only 
 when ExposureFrom = 1.

Cpl

The leeward coefficient, Cp. This item applies only 
 when ExposureFrom = 1.

UserZ

This item is True if the top and bottom elevations of 
 the wind load are user specified. It is False if the elevations are determined 
 by the program.

TopZ

This item applies only when the UserZ item is True. 
 It is the global Z-coordinate at the highest level where auto wind loads 
 are applied. [L]

BottomZ

This item applies only when the UserZ item is True. 
 It is the global Z-coordinate at the lowest level where auto wind loads 
 are applied. [L]

WindSpeed

The wind speed in meters per second.

TerrainCategory

This is 1, 2, 3 or 4, indicating the terrain category.

ImportanceFactor

This is 1, 2 or 3, depending on the importance factor.

1 = 1.00

2 = 1.15

3 = 1.30

k1

The risk coefficient (k1 factor).

k3

The topography factor (k3 factor).

UserExposure

If this item is True, the wind exposure widths are provided 
 by the user. If it is False, the wind exposure widths are calculated by 
 the program from the extents of the diaphragms.

Remarks

This function retrieves auto wind loading parameters 
 for Indian IS875-2015.

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

VBA Example

Sub GetWindIS8752015()

'dimension variables

Dim SapObject as cOAPI

Dim SapModel As cSapModel

Dim ret As Long

Dim ExposureFrom As Long

Dim DirAngle As Double

Dim Cpw As Double

Dim Cpl As Double

Dim UserZ As Boolean

Dim TopZ As Double

Dim BottomZ As Double

Dim WindSpeed As Double

Dim TerrainCategory As Long

Dim ImportanceFactor As Long

Dim k1 As Double

Dim k3 As Double

Dim UserExposure As Boolean

'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("WIND", 
 LTYPE_WIND)

'assign IS8752015 parameters

ret = SapModel.LoadPatterns.AutoWind.SetIS8752015("WIND", 
 1, 0, 0.8, 0.5, False, 0, 0, 60, 3, 3, 1.1, 1.2)

'get IS8752015 parameters

ret = SapModel.LoadPatterns.AutoWind.GetIS8752015("WIND", 
 ExposureFrom, DirAngle, Cpw, Cpl, UserZ, TopZ, BottomZ, WindSpeed, TerrainCategory, 
 ImportanceFactor, k1, k3, UserExposure)

'close Sap2000

SapObject.ApplicationExit False

Set SapModel = Nothing

Set SapObject = Nothing

End Sub

Release Notes

Initial release in version 19.2.0.

See Also

SetIS8752015