SetAASHTO2020 {Bridge Wind Load}

SetAASHTO2020

Syntax

SapObject.SapModel.LoadPatterns.AutoWindBridge.SetAASHTO2020

VB6 Procedure

Function SetAASHTO2020(ByVal Name As String, ByVal LimitState As Long, ByVal Superstructure As Boolean, ByVal Substructure As Boolean, ByVal Vertical As Boolean, ByVal GroundElevation As Double, ByVal SuperZProgCalc As Boolean, ByVal SuperstructureZ As Double, ByVal SubZProgCalc As Boolean, ByVal SubstructureZ As Double, ByVal WindSpeed As Double, ByVal ExposureCategory As Long, ByVal G As Double, ByVal CdSuper As Double, ByVal CdSub As Double) As Long

Parameters

Name

The name of an existing Wind-type load pattern.

LimitState

The limit state associated with the wind load.

1 = Strength III

2 = Strength V

3 = Service I

4 = Service IV

Superstructure

This item is True if wind on the superstructure should be considered, otherwise it is false.

Substructure

This item is True if wind on the substructure should be considered, otherwise it is false.

Vertical

This item is True if vertical wind should be considered, otherwise it is false

GroundElevation

The ground elevation used for determining heights used for wind pressure values. [L]

SuperZProgCalc

This item is True if the superstructure height, Z, should be program calculated, otherwise it is false.

SuperstructureZ

The superstructure height Z. This item applies only when SuperProgCalc = False. [L]

SubZProgCalc

This item is True if the substructure height, Z, should be program calculated, otherwise it is false.

SuperstructureZ

The substructure height Z. This item applies only when SubProgCalc = False. [L]

WindSpeed

The wind speed in mph.

Exposure Category

The wind exposure category.

1 = B

2 = C

3 = D

G

The gust effect factor, G.

CdSuper

The drag coefficient for the superstructure.

CdSub

The drag coefficient for the substructure.

Remarks

This function sets bridge auto wind loading parameters for AASHTO 2020.

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

VBA Example

Sub SetBridgeWindAASHTO2020()

 '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

 'open existing model containing a bridge object

 ret = SapModel.File.OpenFile(C:\Temp\BridgeModel.bdb )

 'add new load pattern

 ret = SapModel.LoadPatterns.Add("WIND", LTYPE_WIND)

 'assign AASHTO2020 parameters

 ret = SapModel.LoadPatterns.AutoWindBridge.SetAASHTO2020("WIND", 1, True, True, True, -100, True, 10, True, 10, 100, 2, 1, 1.3, 1.6)

 'close Sap2000

 SapObject.ApplicationExit False

 Set SapModel = Nothing

 Set SapObject = Nothing

 End Sub

Release Notes

Initial release in v25.3.0.

See Also

GetAASHTO2020