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New Frontiers in Engineering Geology and the EnvironmentNumerical Simulation of Seismic Responses of Asymmetric-Plan Reinforced Concrete Frame With Brbs

New Frontiers in Engineering Geology and the Environment: Numerical Simulation of Seismic... [As a kind of prospective energy dissipation and vibration reduction component, buckling-restrained brace (BRB) overcomes the buckling characteristics of conventional braces. When subjected to the frequent earthquakes, the BRBs are in elastic state, providing the stiffness for the main structure; when subjected to the rare earthquakes, they are in elasto-plastic state in the structure, providing the energy-dissipation capacity. This paper presents a 6-story reinforced concrete asymmetric frame with BRBs. The comparison of the seismic effects of the retrofitted structure using response spectra analysis and time history analysis under the frequent earthquakes proves that the model is reasonable. And we compare the drift ratio between frame with and without BRBs using time history under rare earthquakes. The results show that the BRBs can effectively control the structure under the action of earthquakes. And force-displacement relationship of BRB is perfect. In addition, the results of nonlinear analyses will be use in the test of BRB and the structure design.] http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png

New Frontiers in Engineering Geology and the EnvironmentNumerical Simulation of Seismic Responses of Asymmetric-Plan Reinforced Concrete Frame With Brbs

Part of the Springer Geology Book Series
Editors: Huang, Yu; Wu, Faquan; Shi, Zhenming; Ye, Bin

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References (1)

Publisher
Springer Berlin Heidelberg
Copyright
© Springer-Verlag Berlin Heidelberg 2013
ISBN
978-3-642-31670-8
Pages
233 –237
DOI
10.1007/978-3-642-31671-5_42
Publisher site
See Chapter on Publisher Site

Abstract

[As a kind of prospective energy dissipation and vibration reduction component, buckling-restrained brace (BRB) overcomes the buckling characteristics of conventional braces. When subjected to the frequent earthquakes, the BRBs are in elastic state, providing the stiffness for the main structure; when subjected to the rare earthquakes, they are in elasto-plastic state in the structure, providing the energy-dissipation capacity. This paper presents a 6-story reinforced concrete asymmetric frame with BRBs. The comparison of the seismic effects of the retrofitted structure using response spectra analysis and time history analysis under the frequent earthquakes proves that the model is reasonable. And we compare the drift ratio between frame with and without BRBs using time history under rare earthquakes. The results show that the BRBs can effectively control the structure under the action of earthquakes. And force-displacement relationship of BRB is perfect. In addition, the results of nonlinear analyses will be use in the test of BRB and the structure design.]

Published: Jun 11, 2012

Keywords: Asymmetric-plan reinforced concrete frame; Buckling-restrained brace; Seismic analysis

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