modal pushover

goase66 · Post by **goase66** » Tue Jun 28, 2011 4:47 am

how do i model single degree of freedom model in modal pushover analysis in opensees ? plz help

kengawk · Post by **kengawk** » Fri Jul 01, 2011 7:58 pm

SDOF system ?
is modal pushover meaningful for it?

karimtarbali · Post by **karimtarbali** » Sun Jul 03, 2011 11:18 pm

use truss element with steel01 material for stiffness

kengawk · Post by **kengawk** » Mon Jul 11, 2011 5:24 am

so...
Can you tell me how to simplify truss model into SDOF system and necessite to use modal pushover?

kengawk · Post by **kengawk** » Mon Jul 11, 2011 5:26 am

insterested in the buckling of memebers in truss under compression?

vesna · Post by **vesna** » Mon Jul 11, 2011 1:36 pm

Here is an example of pushover analysis on a cantilever column: http://opensees.berkeley.edu/wiki/index ... ver_Column

goase66 · Post by **goase66** » Wed Jul 20, 2011 4:23 am

kengawk wrote:
> SDOF system ?
> is modal pushover meaningful for it?
i mean when i do pushover analysis for mode 1 (S1=M Q1 (Q1=MODE SHAPE , M= MASS ) after that i obtained pushover curve i must obtain sdof properties from pushover curve from the chopra equtions , and after that i shoud model sdof in opensees with nonlinear properties , and i should do nonlinear time history analysis , how i model sdof and how i assign nonlinear properties to it ?

kengawk · Post by **kengawk** » Thu Jul 21, 2011 3:30 am

I believe you could use the same model for both nonlinear static analysis and dynamics analysis.

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modal pushover

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