Application of Nonlinear Static Procedures for Seismic Assessment of Regular RC Momen
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Application of Nonlinear Static Procedures for Seismic Assessment of Regular RC Momen
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Application of Nonlinear Static Procedures for Seismic Assessment of Regular RC Moment Frame Buildings

Author: Michalis Fragiadakis , Dimitrios Vamvatsikos , Mark Aschheim | Size: 1.6 MB | Format: PDF | Quality: Unspecified | pages: 27


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Abstract. The applicability of nonlinear static procedures for estimating seismic demands of typical regular RC moment-resisting frames is evaluated. This work, conducted within the framework of the ATC-76-6 project, shows the degree to which nonlinear static methods can characterize global and
local response demands vis-à-vis those determined by nonlinear dynamic analysis for three RC mo-ment frame buildings. The response quantities (engineering demand parameters) considered are peak story displacements, story drifts, story shears and floor overturning moments. The single-mode push-
over methods evaluated include the N2 and the ASCE-41 coefficient methods. Multi-modal pushover methods such as the Modal Pushover Analysis and the Consecutive Modal Pushover method also were evaluated. The results indicate that the relatively good performance of the single-mode methods observed for low-rise buildings rapidly deteriorates as the number of stories increases. The multi- mode techniques generally extend the range of applicability of pushover methods, but at the cost of additional computation and without ensuring reliability of the results.


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