To Generate seismic loading based on IS code and to run the analysis using TSD

Aim : Generate seismic loading based IS codal provisions and zone II. Any other data you can assume and input accordingly

Procedure :

Answer:

Criteria for Earthquake Resistant Design of Structures is Code IS 1893-2016(Part-1) used for the generation of Seismic loading.

For the loadinf of the seismic force we have to consider some basic information and pre-requistes for the Earthquake responses of the building.

It may include:

1. Type of the structure

2. Type of the soil

3. Zone in which the building is located

4. Type of method used for analysis

5. Irregularities in Plan

6. Irregularities in Elevation

7. No of storeys in the building

8. Importance of the structure

9. Resisting system used for seismic force

Steps:

• Add load cases for seismic loading

• Go to load>Seismic load Wizard

• Enter the basic information
• Seismic Zone II
• Importance Factor= 1.2 from clause 7.2 of IS 1893
• ZOne Factor=0.1 from table 2 IS 1893
• Damping Percentage= 5% clause 7.8 Table 3 IS 1893

• Equivalent Lateral Force Method is chosen
• Fundamental period clause 7.6 IS 1893

• Select the Seismic Force Resisting System

• Add the load cases

• Genarate Load combination

• Finish the Seismic load Application.
• Now analyse the structure with the given combinations.
• Go to Analyze>Select the load combinations

Now run the analysis

Do 1st order Linear analysis for the structure.

Check the results.

2. Run the analysis. Summarize your understanding of the analysis results

Answer:

• After the analysis now check for the results in Result mode.
• Check for moment in major axis
• Check for Moment in minor axis
• Check fo Shear in major axis
• Check fo Shear in minor axis

The values are to be in limit for the success of the structure with all the members to be passed.

All the above values are to be checked for different load combinations for different type of members for frames and floors.

For Frame 7= Face A

Apply seismic force in direction 1

Check for Moment for Major axis

Moment Minor

For Frame 7= Face A

Apply seismic force in direction 1

Check for Shear in Major axis

Shear Minor

For Frame 7= Face A

Apply seismic force in direction 1

Check for Deflection values in Z direction

These are the deflection which can be decreases by increasing the grade of concrete of column.

Deflection in X direction

For Frame 7= Face A

Apply seismic force in direction 1

Check for Axial Forces with Deflection

Conclusion : Challenge Completed