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Evaluation of Modal and FEMA Pushover Analysis Procedures Using Recorded Motions of Two Steel Buildings

Goel, Rakesh K.

The objective of this investigation is to evaluate the FEMA-356 Nonlinear Static Procedure (NSP) and a recently developed Modal Pushover Analysis (MPA) procedure using recorded motions of two steel buildings that were damaged during the 1994 Northridge earthquake. It is found that the FEMA-356 NSP typically underestimates the drifts in upper stories. Among the four FEMA-356 distributions considered, the "Uniform" distribution led to the most excessive underestimation indicating that this distribution may be unnecessary. The MPA procedure, in general, provides much-improved estimates of the response compared to the FEMA-356 NSP.

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Evaluation of Modal and FEMA Pushover Analysis Procedures Using Recorded Motions of Two Steel Buildings

Goel, Rakesh K.

The objective of this investigation is to evaluate the FEMA-356 Nonlinear Static Procedure (NSP) and a recently developed Modal Pushover Analysis (MPA) procedure using recorded motions of two steel buildings that were damaged during the 1994 Northridge earthquake. It is found that the FEMA-356 NSP typically underestimates the drifts in upper stories. Among the four FEMA-356 distributions considered, the "Uniform" distribution led to the most excessive underestimation indicating that this distribution may be unnecessary. The MPA procedure, in general, provides much-improved estimates of the response compared to the FEMA-356 NSP.

Evaluation of Modal and FEMA Pushover Analysis Procedures Using Recorded Motions of Two Steel Buildings

Goel, Rakesh K.

The objective of this investigation is to evaluate the FEMA-356 Nonlinear Static Procedure (NSP) and a recently developed Modal Pushover Analysis (MPA) procedure using recorded motions of two steel buildings that were damaged during the 1994 Northridge earthquake. It is found that the FEMA-356 NSP typically underestimates the drifts in upper stories. Among the four FEMA-356 distributions considered, the "Uniform" distribution led to the most excessive underestimation indicating that this distribution may be unnecessary. The MPA procedure, in general, provides much-improved estimates of the response compared to the FEMA-356 NSP.

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Title:

Evaluation of Modal and FEMA Pushover Analysis Procedures Using Recorded Motions of Two Steel Buildings

Contributors:

Goel, Rakesh K. (author)

Conference:

Structures Congress 2004 ; 2004 ; Nashville, Tennessee, United States

Published in:

Structures 2004 ; 1-10

Publication date:

2004-05-21

ISBN:

DOI:

https://doi.org/10.1061/40700(2004)76

Type of media:

Conference paper

Type of material:

Electronic Resource

Language:

English

Keywords:

Earthquakes , Structural engineering , Damage , Steel structures

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