MDOF lumped mass model

[harvie]

Hello everyone!

Any idea on how I model a lumped mass MDOF system with columns represented as shear and flexure springs?

Also, is it required to do first eigenvalue analysis and gravity analysis to capture the response to a time-history analysis?

[mhscott]

Eigenvalue analysis is not required to do response history analysis.

[harvie]

Eigenvalue analysis is not required to do response history analysis.

Thank you for replying, Sir!

How about gravity analysis, is it mandatory before perfoming THA?

[mhscott]

No

[harvie]

No

Thank you very much, Sir!

Though I have not yet figured out how I can correctly model a structure using a spring-mass system.
I actually posted another topic here: viewtopic.php?f=2&t=68378
Maybe you can give me insights about it, Thank you in advance!