Seismic And Structural Response Of A
Framed Four Level Building With RC And
Steel Structure Designed According To Current
Venezuelan Codes
Author(s)
R. Ugel, R. I. Herrera, J. C. Vielma, A. Barbat & L. Pujades
Abstract
This study determines the structural behavior of a four level framed building
with composite RC and steel structure designed according Venezuelan seismic
codes. The structural system consists of RC frames in the first three levels and
steel frames in the fourth. It was performed linear analysis to design all structural
elements. Capacity curves and performance points were obtained with pushover
analysis. Results showed greater ductility in the X frames’ direction and greater
resistance reserve in the external frames. Performing points showed adequate
resistance values but low stiffness in two Y frames’ directions. Seismic action is
carried on through synthetic accelerograms defined by the seismic codes used in
this study. Dynamic analysis is used to compute parameters of ductility, over
strength and displacements. In one case the collapse Limit State was reached,
implying a general collapse of the building. Incremental dynamic analysis was
performed to obtain fragility curves and damage probability matrix; a very high
probability of significant lateral displacement and damage was evidenced from
this despite a normative design of structural elements.
Keywords: composite structure, performance point, incremental dynamic
analysis, fragility curves.
Keywords
composite structure, performance point, incremental dynamicanalysis, fragility curves
Related Book
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