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Lateral Load Distribution in Nonlinear Static Procedures for Seismic Design
Nonlinear static analysis using pushover procedures are becoming increasingly common in engineering practice for seismic evaluation of building structures. Various invariant distributions of lateral forces are recommended in FEMA-356 (2000) to perform a pushover analysis. However, the use of these invariant force distributions does not adequately represent the effects of varying dynamic characteristics during the inelastic response or the influence of higher modes. More recently, new approaches to combining lateral load distributions have been proposed to overcome some of the drawbacks in FEMA procedures. In this paper the validity and applicability of several lateral load configurations are assessed by comparison of the pushover response of eight and twelve story steel moment frame buildings with benchmark solutions based on nonlinear time history analyses. The study reveals the suitability of using unique modal combinations to determine lateral load configurations that best approximate the inter-story demands in multistory frame buildings subjected to seismic loads.
Lateral Load Distribution in Nonlinear Static Procedures for Seismic Design
Nonlinear static analysis using pushover procedures are becoming increasingly common in engineering practice for seismic evaluation of building structures. Various invariant distributions of lateral forces are recommended in FEMA-356 (2000) to perform a pushover analysis. However, the use of these invariant force distributions does not adequately represent the effects of varying dynamic characteristics during the inelastic response or the influence of higher modes. More recently, new approaches to combining lateral load distributions have been proposed to overcome some of the drawbacks in FEMA procedures. In this paper the validity and applicability of several lateral load configurations are assessed by comparison of the pushover response of eight and twelve story steel moment frame buildings with benchmark solutions based on nonlinear time history analyses. The study reveals the suitability of using unique modal combinations to determine lateral load configurations that best approximate the inter-story demands in multistory frame buildings subjected to seismic loads.
Lateral Load Distribution in Nonlinear Static Procedures for Seismic Design
Kalkan, E. (author) / Kunnath, S. K. (author)
Structures Congress 2004 ; 2004 ; Nashville, Tennessee, United States
Structures 2004 ; 1-10
2004-05-21
Conference paper
Electronic Resource
English
| British Library Online Contents | 2016
| British Library Online Contents | 2016