This document provides a checklist for analyzing a structural model in STAAD: 1. Check model dimensions, storey heights, material properties, member specifications, loads, and meshing before analysis. 2. After analysis, check for equilibrium, excessive deflections, and ensure member forces are acceptable. 3. Additional checks include torsional irregularity, ensuring walls take 75% of base shear, checking for soft storeys, and ensuring base shear scaling matches code. Having only walls may result in a very stiff building model.

1. CHECK LIST FOR STAAD ANALYSIS MODEL<xml><o></o>
Before analysis
1. Check the dimensions between grids, storey heights
2. Prepare the list of material properties that are used in the model. It includes
Youngs modulus, Poisson’s ratio, density etc.
3. Characteristic strength of materials like concrete strength, and yield
strength of steel.
4. Loads. Make sure to include all dead loads, live load, wind and seismic
loads. Seismic must come as the first load case. Include floor finishes, tiles,
fire fighting equipments, and cable loads.
5. Member specifications like member orientation, end offsets etc.
6. Check for duplicate and multiple elements, zero length member, and
orphan nodes.
7. Meshing of plates and walls.
8. View the rendered view to visualize the mode for completion of properties.
After analysis
1. Look at the equilibrium results.
2. View the animation for any excessive deflection of nodes.
3. The absolute maximum axial load, M and V in any member in the structure
and see whether it is acceptable, practicable or not.
Regards
Siva
Other checks may be:
1. Torsional irregularity check as per IS 1893. This can be done manually and is quick.
But it has to be done under service loads. DL+EQX etc.
2. We can also check whether the walls are taking 75% base shear or not. although this is
not a "quick" check, but is a very important check as it helps in fine tuning the building.
3. We can check from the software(only STAAD and not ETABS) whether soft storey
exists or not. Manually it can be checked but it is a long process and is given in detail in
the book by varyaniji.
4. You can check whether the proper scaling of base shear has been done or not to match
the IS 1893 base shear.
I guess these are what I remember in addition to what Barua sir mentioned.
Also, from the screenshots you have uploaded, if all the red stuff shown are walls, then I
am afraid, your building is very very stiff.

2. _________________
Thank you,
Kumar Abhishek Singh
Senior Engineer-Structures
WSP CRC (UK)