Evaluation of Modal and FEMA Pushover Analyses: SAC Buildings
نویسندگان
چکیده
منابع مشابه
Evaluation of Modal and FEMA Pushover Analyses: SAC Buildings
This paper comprehensively evaluates the Modal Pushover Analysis (MPA) procedure against the ‘‘exact’’ nonlinear response history analysis (RHA) and investigates the accuracy of seismic demands determined by pushover analysis using FEMA-356 force distributions; the MPA procedure in this paper contains several improvements over the original version presented in Chopra and Goel (2002). Seismic de...
متن کاملModal Pushover Analysis of SAC Buildings
The nonlinear static procedure (NSP) or pushover analysis in FEMA-273 [FEMA, 1997] has become a standard procedure in current structural engineering practice. Seismic demands are computed by nonlinear static analysis of the structure, which is subjected to monotonically increasing lateral forces with an invariant height-wise distribution until a target displacement is reached. None of the curre...
متن کاملModal Pushover Seismic Analysis of Sac Buildings excluding Gravity Loads
Evaluated is the accuracy of the modal pushover analysis in estimating the seismic demands for six SAC buildings, excluding gravity-loads and P-delta effects. These results are compared with those obtained by nonlinear response history analysis and three force distributions in FEMA-273.
متن کاملassessment of conventional nonlinear static procedures with fema load distributions and modal pushover analysis for high-rise buildings
the nonlinear static pushover analysis technique is mostly used in the performance-based design of structures and it is favored over nonlinear response history analysis. however, the pushover analysis with fema load distributions losses its accuracy in estimating seismic responses of long period structures when higher mode effects are important. some procedures have been offered to consider thi...
متن کاملRole of Higher-“Mode” Pushover Analyses in Seismic Analysis of Buildings
The role of higher-“mode” pushover analyses in seismic analysis of buildings is examined in this paper. It is demonstrated that the higher-“mode” pushover curves reveal plastic hinge mechanisms that are not detected by the first-“mode” or other FEMA-356 force distributions, but these purely local mechanisms are not likely to develop during realistic ground motions in an otherwise regular buildi...
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ژورنال
عنوان ژورنال: Earthquake Spectra
سال: 2004
ISSN: 8755-2930,1944-8201
DOI: 10.1193/1.1646390