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Influence of Web Openings of Link on Seismic Behavior of Eccentrically Braced Steel Frames
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[1]Li Tong,Shiqiang,Wang Xinwu,et al.Influence of Web Openings of Link on Seismic Behavior of Eccentrically Braced Steel Frames[J].Journal of Zhengzhou University (Engineering Science),2021,42(02):38-43.[doi:10.13705/j.issn.1671-6833.2021.02.011]
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Journal of Zhengzhou University (Engineering Science)[ISSN 1671-6833/CN 41-1339/T] Volume: 42 Number of periods: 2021 02 Page number: 38-43 Column: Public date: 2021-04-12
Title:
Influence of Web Openings of Link on Seismic Behavior of Eccentrically Braced Steel Frames
Author(s):
Li Tong; Shiqiang; Wang Xinwu; Ye Chongyang;
School of Civil Engineering, Henan University of Science and Technology; International Joint Laboratory of Henan New Civil Engineering Structure of Luoyang Institute of Technology; School of Science and Technology of Wuhan University of Technology;
Keywords:
replaceable shear links;  eccentrically supported frame;  finite element;  opening ratios;  hysteretic behavior
CLC:
-
DOI:
10.13705/j.issn.1671-6833.2021.02.011
Abstract:
Pseudo-static cyclic loading tests of a single-layer and single span prefabricated eccentrically braced steel frames were carried out and the test results were simulated by ABAQUS software. On the basis of reasonable results, five finite element models were established. The influence of web openings on seismic behavior of prefabricated eccentrically braced steel frames was analyzed from bearing capacity, stiffness degradation and energy dissipation capacity. The results showed that the opening ratio of web of link had influence on its bearing capacity in the monotonic load, the yield bearing capacity and ultimate bearing capacity of model decreases with the web opening ratio. Under cyclic loading, the initial stiffness of the model decreased with the increased of web opening ratio. The energy consumption capacity of model was not affected obviously by the opening ratio, except for BASE model: the energy consumption coefficients of other models are around 1.55. Appropriate increase of opening ratio could improve the ductility coefficient of the model, however, too large opening ratio would lead to premature failure of the component, which would make the reduction of ductility coefficient.
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Last Update: 2021-05-30
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