Staad Pro Tutorial

Tutorial

Simple steel structure 2D STAAD.PRO 2007

This tutorial was created to make a simple introduction to the STAAD.PRO 2007 program. The mission is to enable the user to create a simple 2D model using the basic tools of the program. Created for the course 11961 Structural Design DTU, February 2009 Jeppe Jönsson Þórður Rafn Bjarnason

This tutorial consist of steps 1-38 and comments as needed.

1. Open the STAAD.PRO program

2. Click “New Project...” • Enter File name • Specify the Location, were the file will be saved • Select: Plane • Length Units: Meters • Force Units: KiloNewton • Click Next

New Project... Button

We selected Plane as we are only creating a 2D structure

3. Next we will add a Beam • Check: Add Beam • Click Finish

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4. Edit the Grid system • Click Edit

5. Grid edit • Change the Construction Lines • Set X and Y to 5 • Click OK At this time we do not need to create a new grid line as our structure is simple and only in 2D

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6. Adding Beams The Snap Node/Beam window is now open, just move the window so that the grid lines are visible

Snap Node/Beam Button

If the Snap Node/Beam window is not open, just click the Snap Node/Beam button to enable the window

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7. View in 2D As we are only working with a 2D structure, we can change the view.

View From +Z Button

• Click View From +Z Then we have a plane Y-X

8. Add Beam Note that the Snap Note/Beam window has to be open, see step 6 • Click Snap Node/Beam, if it is not already turned on • Move the cursor over the Grid and click at the point (0,0) as the starting point for the beam • Next click the point (0,4) as the finishing point for the beam • Now we have created a beam

Finish point (0,4)

Starting point (0,0)

9. Complete the structure Complete step 8 for all the 5 beams and the structure should look like the structure here to the left Beam 2

Beam 5

Beam 1

Beam 3

Beam 4

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10. General option • Click General Now we are ready to apply and define property for the beams General option

11. Defining Property Go to the Properties - Whole structure window (in the bottom right corner) Property option

• Click Section Database Next we select the steel Profiles that we will be using • • • • • •

Select Steel Select European Select IPE Shape Select IPE120 and click Add Select IPE160 and click Add Click Close

12. Assign Property to the beams Next we will assign the selected steel profiles to the beams • Select IPE120 • Select Cursor To Assign • Click Assign Use the Cursor to assign to IPE120 to beams 4 and 5 Repeat this for the IPE160 profile, assign to beams 1, 2 and 3

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13. Structure with assigned Properties After assigning the IPE120 and IPE160 the structure should look like the one to the left

14. Creating bracing • Click Spec • Select Beam 5 and Double click • Select Change Releases At Start...

Spec

15. Bracing - continued • Select Release Under Release • Check FY • Check FZ • Check MX • Check MY • Check MZ • Click Add • Select Change Releases At End... • Repeat as the releas as done for the Releases At Start... 7

16. Bracing - continued After releasing the structure should look like the one to the left

17. Creating Supports • Click Support Go to the Supports - Whole structure window (in the bottom right corner) Support option

• Click Create

18. Select support • Select Pinned and Add We will only be using pinned supports for this structure The structure is statically indeterminate, see also the hand calculations in appendix A

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19. Assign Supports • Select the Pinned support • Select Cursor To Assign • Click Assign Use the Cursor to assign to the pinned supports to Node 1 and Node 4 After having assigned the pinned supports the structure should look like the one to the left Node 1

Node 4

20. Defining Loads • Click Load

Load option

21. Load Cases Details Go to the Load window (to the right) • Select Load Cases Details • Click Add...

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22. Create Load Cases • • • • •

Select Primary Loading Type: Live Title: Live Click Add Click Close

23. Load Items • Select 1 : Live • Click Add... • • • •

Select Nodal Load Fx: 60 Click Add Click Close

In this example we will neglect self weight

24. Assign Load • Select FX 60 kN,m • Click Node 2 • Select Assign To Selected Nodes • Click Assign Assign the load to Node 2

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25. Defining Material • Click Material We see we have already defined the Materials when we selected the steel profiles for the beams, when we defined the Property. See step 11

Material option

26. Define the Analysis/Print • Click Analysis/Print The Analysis/Print window will pop up • • • •

Analysis/Print option

Select Preform Analysis Select All Click Add Click Close

27. Check if Staad.pro will preform selected analysis Take a look at the Analysis Whole structure window (to the right) We have successfully added PREFORM ANALYSIS PRINT ALL

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28. Analyze • Click Analyze • Click Run Analysis... Or press Ctrl+F5 Now the analysis will run

29. Analysis completed Now the result window will pop up • Select Go to Post Processing Mode • Click Done

30. Result Setup • Select Loads Move the Load Cases that are available box to the Selected box • Click OK

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31. Postprocessing dialog Now we get the Postprocessing dialog Here we can check the displacement, reactions, forces acting on the beams, stresses, look at graphs, animations and create reports We will start by checking the displacements and reactions

32. Displacement in Nodes • Click Node • Click Displacement We see that the Horizontal (x-direction) displacement in Node 2 is 2,159 mm

Node Displacement Node 2

This Horizontal (x-direction) displacement in Node 2 is the same as the hand calculations, page 18, see Appendix A

33. Reactions • Click Reactions Now we can see the reactions in the supports

Node Reactions

The reaction are the same as the hand calculations

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34. Forces in the Beams Now we will take a look at the beams • Click Beam • Click Forces

Beam Forces

Now we can see all of the forces that are acting on the beams If we focus on beam 1 we can see that the axial force 42 kN is as the hand calculations, and the same is for all the other beams 35. Stresses • Click Beam • Click Stresses • Select Beam 2 Beam Stresses

Try out by clicking beams We see that the beams 1 and 4 are in tension, beams 2, 3 and 5 are in compression. This was also seen visible in step 34

36. Graphs • Click Beam • Click Graphs Now we can see the all of the beams graphs, Fy, Fx and Mz

Beam Graphs

Try out by clicking beams

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37. Beam Property We can take a look at each beam and see what properties are associated with them • Double Click Beam 2 • Click Property Now we can see all of the information about the beam, such as material (steel), section (IEP160) and so on

38. This ends this tutorial

Video tutorial and information are available from the Bentley web site: 1. Create a model of beams and finite element meshes, load, a 3D concrete model and produce quality reports 2. Highlights of STAAD.Pro 2007

Appendix A. Hand calculations • Here we apply virtual work to solve statically indeterminate structure, applying “Kraftmetoden” or the “Force method” • The hand calculations are used to compare with the results from Staad. pro program

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Appendix A

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Appendix A

Supports in A

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Appendix A

Horizontal (x-direction) displacement

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11961 Structural Design DTU February 2009