SetASCE716

SetASCE716

Syntax

SapObject.SapModel.LoadPatterns.AutoWind.SetASCE716

VB6 Procedure

Function SetASCE716(ByVal Name As String, ByVal ExposureFrom 
 As Long, ByVal DirAngle As Double, ByVal Cpw As Double, ByVal Cpl As Double, 
 ByVal ASCECase As Long, ByVal ASCEe1 As Double, ByVal ASCEe2 As Double, 
 ByVal UserZ As Boolean, ByVal TopZ As Double, ByVal BottomZ As Double, 
 ByVal WindSpeed As Double, ByVal ExposureType As Long, 
ByVal Kzt As Double, ByVal GustFactor 
 As Double, ByVal Kd As Double, Optional ByVal SolidGrossRatio As Double 
 = 0.2, Optional ByVal UserExposure As Boolean = False) As Long

Parameters

Name

The name of an existing Wind-type load pattern.

ExposureFrom

This is 1, 2, 3 or 4, indicating the source of the wind 
 exposure.

1 = From extents of rigid 
 diaphragms

2 = From area objects

3 = From frame objects 
 (open structure)

4 = From area objects and 
 frame objects (open structure)

DirAngle

The direction angle for the wind load. This item applies 
 only when ExposureFrom = 1, 3, or 4. 

Cpw

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

Cpl

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

ASCECase

This is 1, 2, 3, 4 or 5, indicating the desired case 
 from ASCE7-16 Figure 27.3-8 . 1, 2, 3 and 4 refer to cases 1 through 4 
 in the figure. 5 means to create all cases. This item applies only when 
 ExposureFrom = 1.

ASCEe1

This is the value e1 in ASCE7-16 Figure 27.3-8. This 
 item applies only when ExposureFrom = 1.

ASCEe2

This is the value e2 in ASCE7-16 Figure 27.3-8. 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 miles per hour.

ExposureType

This is 1, 2 or 3, indicating the exposure category.

1 = B

2 = C

3 = D

Kzt

The topographical factor.

GustFactor

The gust factor.

Kd

The directionality factor.

SolidGrossRatio

The solid area divided by gross area ratio for open 
 frame structure loading. This item applies only when the loading is from 
 open structure wind loading (ExposureFrom = 3 or ExposureFrom = 4).

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 assigns auto wind loading parameters for 
 ASCE 7-16.

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

VBA Example

Sub AssignWindASCE716()

'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("WIND", 
 LTYPE_WIND)

'assign ASCE716 parameters

ret = SapModel.LoadPatterns.AutoWind.SetASCE716("WIND", 
 1, 0, 0.8, 0.5, 2, 0.15, 0.18, False, 0, 0, 80, 3, 1.1, 0.85, 0.88)

'close Sap2000

SapObject.ApplicationExit False

Set SapModel = Nothing

Set SapObject = Nothing

End Sub

Release Notes

Initial release in version 23.2.0

See Also

GetASCE716