Pushover Analysis a popular tool for seismic ...

Pushover Analysis a popular tool for seismic

performance evaluation of existing and new structures and is

nonlinear Static procedure where in monotonically increasing

loads are applied to the structure till the structure is unable

to resist the further load .During the analysis, whatever the

strength of concrete and steel is adopted for analysis of

structure may not be the same when real structure is

constructed and the pushover analysis results are very sensitive

to material model adopted, geometric model adopted, location

of plastic hinges and in general to procedure followed by the

analyzer. In this paper attempt has been made to assess

uncertainty in pushover analysis results by considering user

defined hinges and frame modeled as bare frame and frame

with slab modeled as rigid diaphragm and results compared

with experimental observations. Uncertain parameters

considered includes the strength of concrete, strength of steel

and cover to the reinforcement which are randomly generated

and incorporated into the analysis. The results are then

compared with experimental observations.

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