To Analysis and Design of Steel Structures using TSD

Q.1 Ans

Aim: Summerize your study for the bending moment, shear force and deeflection diagrams for the elements of the model.

Procedure:

Step 1:

1. Open the previous challenge model of wind wizard.
2. Add the seismic data for application of seismic load.
3. Go to Load -> Seismic load -> Seismic wizard. The seismic wizard will be open.
4. Select the analysis procedure to be used as Code spectra. Click on next.
5. Similarly follow the procedure and fill all the carefully as shown below.
6. Select the load cases required for the seismic analysis.
7. Click on finish and go to setting and check the modification factor for building analysis.
8. Check that all the value should be 1.

Step 2:

1. The seismic loadcase and load combinations are generated.
2. Go to Analyze -> `1^(st`order analysis -> `1^(st`order linear. Then select the loadcases and load combinations and click on ok.
3. After the analysis is done click on result icon which is at the right bottom corner.
4. The result tab will be open. To check result go to -> 1D result -> Results and use the drop down menu to for Axial Force, Momet major and shear major.
5. Now from bottom left corner select the load combination as Effective Seismic Weight.
6. From result panel use drop down menu and select the Moment major.
7. Now click on Shear major and check the shear forces.
8. Click on axial forces.

Step 3:

1. Now go to the frame view and check the result statud of member.
2. Click on fail member and right click -> Check member -> Status.
3. Now select the fail beam and go to properties and change the section property of member and check member -> Status.

Conclusion: Sililarly we can check the status and change the fail mebers.

Q.2 Ans

Aim: Based on the analysis design the members and outline the thought process in selecting member sizes along with the foundation design.

Procedure:

Step 1:

1. To create foundation under the pedestal column go to the base view.
2. To add the foundation go to foundation -> Isolated -> Pad based column. Click on the column so the foundation will be created.
3. Right click on the foundation and Check member -> Status.
4. Change the sizes from properties to 2500 x 2500 x 850mm.
5. Change the bar sizes and c/c distance between bar to 25mm `phi` and 300mm spacing.
6. After making of changes right click on the foundation and click on check member -> Status.

Conclusion:

1. The foundation is created and designed successfully.