Paper Title :Response Modification Factor and Seismic Behavior of Base-Isolated RC Structures
Author :Mohammad Parsaeimaram, Fang Congqi
Article Citation :Mohammad Parsaeimaram ,Fang Congqi ,
(2018 ) " Response Modification Factor and Seismic Behavior of Base-Isolated RC Structures " ,
International Journal of Advances in Mechanical and Civil Engineering (IJAMCE) ,
pp. 51-57,
Volume-5,Issue-1
Abstract : In this paper, one of the significant seismic design parameter as response modification factor in reinforced concrete
(RC) buildings with base isolation system was evaluated. The seismic isolation system is a capable approach to absorbing
seismic energy at the base and transfer to the substructure with lower response modification factor as compared to non-isolated
structures. A response spectrum method and static nonlinear pushover analysis in according to Uniform Building Code
(UBC-97), have been performed on building models involve 5, 8, 12, and 15-stories with fixed and isolated bases consist of
identical moment resisting configurations. The isolation system is composed of lead rubber bearing (LRB) was designed with
help UBC-97 parameters. The force-deformation behavior of isolators was modeled as Bi-linear hysteretic behavior which can
be effectively used to create the isolation systems. The obtained analytical results highlight the response modification factor
of considered base isolation system with higher values than recommended in the codes. The response modification factor is
used in modern seismic codes to scale down the elastic response of structures.
Keywords - Response modification factor; Base isolation system; Pushover analysis; Lead rubber bearing; Bi-linear
hysteretic.
Type : Research paper
Published : Volume-5,Issue-1
DOIONLINE NO - IJAMCE-IRAJ-DOIONLINE-11402
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Published on 2018-04-27 |
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