OpenSTAADFundamentals_PracticeWorkbook3_Working with Excel.pdf

7/25/2019 OpenSTAADFundamentals_PracticeWorkbook3_Working with Excel.pdf

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Bentley Institute Training

Practice Workbook

This workbook is designed for use for Live instructor led training and for OnDemand training. The explanation,

demonstration, and narrative content are provided by the instructor in the classroom and in the OnDemand

eLearning version of this course available through Bentley LEARN (learn.bentley.com).

This exercise workbook is formatted for onscreen viewing using a PDF reader.

Using Macros in Excel

OpenSTAAD Fundamentals - July 2012

TRN020150-1/0001-PW03


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Copyright 2012 Bentley Systems, Incorporated 2

Analyze the Model in STAAD.Pro

Learn how to open the STAAD.Pro Model and perform an analysis.

1. Open OpenSTAADDataset.stdin STAAD.Pro.

Note: In this Practice Workbook, we will perform a concrete beam design in Microsoft Excel using the member properties and the

maximum bending moments (about the local Z axis) for Beam #21 using the STAAD.Pro model and analysis.

2. Click Analyze > Run Analysis... in the menu bar.

3. Select the Go to Post Processing Moderadio button in the STAAD Analysis and Designdialog. Then, click on the Donebutton.

4. Click on the Beamtab and then the Graphssub-tab in the Page Control Area.

5. Use the Beams Cursor to select Beam #21 in the Main Window.

6. Select each of the load combinations through the pull-down menu in the Viewtoolbar. Notice the MZ graph in the Data Area.

Note: The goal of this Practice Workbook is to create a macro in Microsoft Excel to obtain the minimum and maximum moments for aparticular beam for each of the load combinations analyzed. The values of the maximum moment in the Excel file should match

those indicated in the STAAD.Pro analysis results.

7. Keep this model open for the next exercise.

Beam #21


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Initiate OpenSTAAD in Excel

Learn how to initiate OpenSTAAD in MicroSoft Excel and obtain the current STAAD.Pro model.

1. Open Training_Rectangle Beam.xlsin MicroSoft Excel.

2. Click on the Developertab in the Ribbon. Then, click on the Macrosicon.

3. Highlight the RCBeamDesignmacro in the Macrodialog. Then, click on the Edit button.

4. Notice that this macro has been called RCBeamDesign using the following code:

SubRCBeamDesign()

Note: Double click on the Sheet2 (STAAD.Pro Output)item in the VBAProject. Notice that the code to execute the RCBeamDesign macro whenthe Get Resultsbutton is clicked has already been created. Double click on th Module 1item in the VBAProject to return to theRCBeamDesign macro.

5. Enter the following functions in the Macro Design Window to initial the OpenSTAAD object:

DimobjSTAADGUIAs Object

Set objSTAADGUI = GetObject (,STAADPro.OpenSTAAD)

6. Enter the following functions to obtain link to the current STAAD.Pro model:

DimstdFileAs String

objSTAADGUI.GetSTAADFile stdFile, True

If stdFile = Then

MsgBox This macro can only be run with a valid STAADfile loaded.,

vbOKOnlySet objSTAADGUI = Nothing

Exit Sub

End If

Cells(2,2).Value = stdFile



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View the OpenSTAAD Functions

Learn to add the OpenSTAAD Functions to the Object Browser within the Microsoft Excel macro.

1. Continue with the model from the previous exercise.

2. Click on Tools > Referencesin the main menu.

3. Check the STAADLibBentleyoption in the References - VBAProjectdialog. Then, click OK.

4. Click on the Object Browsericon in the Standardtoolbar.

5. Select STAADLibBentleyin the pull down menu. Notice that details of each of the OpenSTAAD functions is available now through theObject Browser in Excel.

6. Close the Object Browser.



5/9Copyright 2012 Bentley Systems, Incorporated 5

Establish the Base Units System

Obtain the base unit system from the current STAAD.Pro model.


2. Enter the following functions to establish the Base Units system:

DimBaseUnitAs Integer

DimBaseLengthUnitAs String

Dim BaseForceUnitAs String

BaseUnit = objSTAADGUI.GetBaseUnit

IfBaseUnit = 1 Then

BaseLengthUnit = in

BaseForceUnit = kips

Else

BaseLengthUnit = m

BaseForceUnit = kN

MsgBox (This macro is designed for English units only. Change the STAAD.Pro > Configuration > Base Unit appropriately.)

SetobjSTAADGUI = Nothing

Exit Sub

End If

Cells(4, 6) = BaseLengthUnit

Cells(5, 6) = BaseForceUnit




Retrieve the Member Information

Learn to retrieve member information using a member number entered into the Excel spreadsheet.


2. Enter the following functions to obtain the member number entered into the Excel worksheet:

DimMemberNoAs Long

MemberNo = Cells(7,2).value

3. Enter the following functions to verify if the member exists in the STAAD.Pro model:

Dim LengthAs Double

Length = objSTAADGUI.Geometry.GetBeamLength (MemberNo)

If Length = 0 Then

MsgBox Please check the member number is valid., vbOKOnly

SetobjSTAADGUI = Nothing

Exit SubEnd If

4. Enter the following functions to retrieve the member properties from the STAAD.Pro model:

DimYDAs Double

DimZDAs Double

objSTAADGUI.Property.GetBeamProperty MemberNo, ZD, YD

Cells(7, 7).Value = YD

Cells(8, 7).Value = ZD




Retrieve the Loading Information and the Member Forces

Learn to retrieve the loading information and the member force information from the STAAD.Pro model.


2. Enter the following functions to retrieve the number of load combinations defined in the STAAD.Pro model:

DimLCaseCountAs Integer

LCaseCount = objSTAADGUI.Load.GetPrimaryLoadCaseCount

Cells(4, 2).Value = LCaseCount

DimLComboCountAs Integer

LComboCount = objSTAADGUI.Load.GetLoadCombinationCaseCount

Cells(5, 2).Value = LComboCount

3. Enter the following functions to limit the number of load combinations to 10:

If LComboCount > 10 Then

MsgBox (This macro is designed for up to 10 load combinations only.)SetobjSTAADGUI = Nothing

Exit Sub

End If

Note: The Excel spreadsheet was created to consider a maximum of 10 load combinations.

4. Enter the following functions to obtain the load combination titles from the STAAD.Pro model:

DimLComboNum()As Long

ReDimLComboNum(LComboCount)

DimLComboTitle() As String

ReDim LComboTitle(LComboCount)

DimiAs Integer

Fori = 1 ToLComboCount

LComboNum(i) = i + LCaseCount

LComboTitle(i) = objSTAADGUI.Load.GetLoadCaseTitle(i + LCaseCount)

Cells(10, i + 1).Value = LComboNum(i)

Cells(11, i + 1).Value = LComboTitle(i)



5. Enter the following functions to retrieve the maximum member moment results:

DimDMaxAs Double

DimdMaxPosAs Double

DimDMinAs Double

DimdMinPosAs Double

objSTAADGUI.Output.GetMinMaxBendingMoment MemberNo, MZ, LComboNum(i), DMax, dMaxPos, DMin, dMinPos

Nexti

6. Enter the following functions to terminate the macro:

Sheets(Concrete).Select

Set objSTAADGUI = Nothing

End Sub

7. Save and close the Macro Design Window for the next exercise.


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Run the Macro

Learn to run the macro in Microsoft Excel.

1. Continue with the Microsoft Excel worksheet from the previous exercise.

2. Select the STAAD.Pro Outputworksheet.

3. Enter 21into field B-7 to instruct the macro to obtain the results to beam #21 in the STAAD.Pro model.

4. Click on the Clear Resultsbutton to ensure we start with an empty spreadsheet.

5. Click on the Get Resultsbutton to run the macro and obtain the results from the STAAD.Pro model.

6. Enter the appropriate parameters for this beam (indicated in the Yellow Fields) to define the following:

Reinforcement Data

Material Data

Strength Reduction Factor

Note: The calculations in the Concreteworksheet have already been defined using the parameters entered for the beam.

OpenSTAADFundamentals_PracticeWorkbook3_Working with Excel.pdf

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