Research on shear behavior and bearing capacity of box joints for a RC column-steel beam

被引：0
|
作者：
Liu L. [1 ,2 ]
Xiao X. [1 ,2 ]
Zheng X. [3 ]
Wang Z. [1 ]
Li Y. [1 ,2 ]
Li R. [1 ,2 ]
Deng F. [1 ,2 ]
机构：
[1] School of Civil Engineering, Chongqing University, Chongqing
[2] Key Laboratory of Earthquake Resistance and Disaster Prevention for Engineering Structures, Chongqing University, Chongqing
[3] Chongqing Poly Real Estate Development Co., Ltd., Chongqing
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2022年 / 41卷 / 24期
关键词：
finite element analysis; hybrid structure; reinforced concrete column and steel beam (RCS) joints; shear bearing capacity; shear behavior;
D O I：
10.13465/j.cnki.jvs.2022.24.002
中图分类号：
学科分类号：
摘要：
In order to study the shear capacity of reinforced concrete column and steel beam (RCS) box-type joints, based on the results of quasi-static tests, the shear mechanism of internal steel webs, external steel side plates and concrete in the joint area and their contribution to the shear capacity were analyzed by theories and the finite element method, and the calculation formula of shear capacity of the joints was derived. The shear force was jointly borne by the internal steel webs, the external steel side plates and the diagonal bar mechanism was formed by the inner and outer concrete. The internal steel webs and the inner concrete are the main bearing components, and the contribution to the shear capacity of the joint is about 50% and 30% respectively. Based on the characteristics that the shear force of the outer steel side plates is small and the ratio of the bearing capacity of the inner steel webs to that of the outer steel side plates is relatively stable, the amplification factor b is introduced to reflect the contribution of the outer steel side plates to the shear capacity, and the shear capacity formula of the steel components is derived; based on the principle of concrete diagonal strut and the contribution of the inner and outer concrete to the shear capacity of the joints, the shear capacity formula of the concrete components was derived. Finally, steel components, the inner concrete in the ultimate bearing capacity state, and the outer concrete which have not yet yielded were superimposed to establish the shear capacity calculation formula of RCS box-type joints. The calculation results are in good agreement with the results of quasi-static tests and finite element analysis results. © 2022 Chinese Vibration Engineering Society. All rights reserved.
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页码：11 / 18+26
相关论文
共 25 条
  • [1] HUANG Qunxian, ZHU Qiyun, GUO Zixiong, Research and development on a new RCS hybrid frame joint, Journal of Building Structures, 3, pp. 154-158, (2009)
  • [2] PARRA-MONTESINOS G, WIGHT J K., Seismic response of exterior RC column-to-steel beam connections, Journal of Structural Engineering, 126, 10, pp. 1113-1121, (2000)
  • [3] Nishiyama I, Kuramoto H, Noguchi H., Guidelines: Seismic Design of Composite Reinforced Concrete and Steel Buildings[J], Journal of Structural Engineering, 130, 2, pp. 336-342, (2004)
  • [4] Alizadeh S, Attari N K A, Kazemi M T., The seismic performance of new detailing for RCS connections[J], Journal of Constructional Steel Research, 91, pp. 76-88, (2013)
  • [5] CAO Hui, YONG Biao, HUA Jian-min, Tests for behavior of steel-hoop RC beam-column joints under cyclic loading, Journal of vibration and shock, 33, pp. 123-128, (2014)
  • [6] MA Hui, LI San-zhi, LI Zhe, Shear bearing capacity of steel reinforced recycled concrete column-steel beam composite frame joints, Engineering mechanics, 7, (2018)
  • [7] MA Hui, JIA Menglu, SUN Shuwei, Nonlinear finite element analysis on steel reinforced recycled concrete columns-steel beams frame composite joints[J], Building Structure, 51, pp. 64-70, (2021)
  • [8] ZHAO Junhai, HU Yi, ZHANG Dongfang, Experi-mental investigation on seismic performance of assembly CFDST frame with beam-connected steel [J], China Civil Engineering Journal, 53, pp. 78-88, (2020)
  • [9] ZHANG Dongfang, HE Shuanhai, ZHAO Junhai, Experimental study on seismic performance of connection between concrete-filled double steel tubular (CFDST) column and steel beam considering composite effect of ＲC slab, Journal of Building Structures, 39, pp. 55-65, (2018)
  • [10] ZHANG Dongfang, ZHAO Junhai, HE Shuanhai, Stress distribution and force-transferring mechanism of connections between concrete-filled double steel tubular column and steel beam, Building Structure, 48, 15, pp. 37-43, (2018)
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