Experimental study on seismic performance of flush end plate connections of steel-concrete composite joints

被引：0

作者：

Zhang J. ^{[1
]}

Hu X. ^{[1
]}

Du H. ^{[1
]}

Sun Q. ^{[1
]}

Li L. ^{[1
]}

Zheng D. ^{[1
]}

机构：

[1] College of Civil Engineering, Nanjing Tech University, Nanjing

来源：

Jianzhu Jiegou Xuebao/Journal of Building Structures | 2019年 / 40卷

关键词：

Composite joint; Flush end plate connection; Initial rotational stiffness; Quasi-static test; Seismic performance;

D O I：

10.14006/j.jzjgxb.2019.S1.014

中图分类号：

学科分类号：

摘要：

In order to study the influence of longitudinal reinforcement ratio in concrete slab and filled concrete in column flange on seismic performance of steel-concrete composite joints with flush end plate connections, cyclic loading tests were carried out on one steel-concrete composite beam-to-composite column joint and three steel-concrete composite beam-to-steel column joints with flush end plate connections. Deformation characteristics, failure modes, moment-rotation hysteresis curves and skeleton curves were studied. The effects of bearing capacity, bearing capacity degradation, ductility and energy dissipation capacity of joints were discussed. The initial rotational stiffness of joint under negative bending moments is analyzed and calculated by using component method. and a restoring force model considering stiffness degradation is established. The results show that increasing the longitudinal reinforcement ratio of concrete slabs can effectively improve the ultimate bearing capacity and initial rotation stiffness of joints under negative bending moments, but has little effect on the bearing capacity and cracking moment of joints under positive bending moments. The initial rotation stiffness of joints can be effectively improved by filling concrete with column flange. The rotational stiffness by calculation formula is in good agreement with the test result. © 2019, Editorial Office of Journal of Building Structures. All right reserved.

引用

页码：109 / 117

页数：8

共 20 条

[1] BRODERICK B M, THOMSON A W., The response of flush end-plate joints under earthquake loading, Journal of Constructional Steel Research, 58, 9, pp. 1161-1175, (2002)
[2] SUMNER E A, MURRAY T M., Behavior of extended end-plate moment connections subject to cyclic loading, Journal of Structural Engineering, 128, 4, pp. 501-508, (2002)
[3] LI Guoqiang, SHI Wenlong, XIAO Yong, State of the art of research on semi rigid composite beam to column joints, Progress in Steel Building Structures, 9, 4, pp. 11-22, (2007)
[4] LU Tiejian, HE Ziying, YU Zhiwu, Et al., Experimental research on seismic behavior of SC beam to RC column connection, Journal of Building Structures, 29, 1, pp. 70-74, (2008)
[5] ANDERSON D, NAJAFI A A., Performance of composite connections: major axis end plate joints, Journal of Constructional Steel Research, 31, 1, pp. 31-57, (1994)
[6] BROWN N D, ANDERSON D., Structural properties of composite major axis end plate connections, Journal of Constructional Steel Research, 57, 3, pp. 327-349, (2001)
[7] GUO Yiqing, HU Xiamin, Plastic design method of the moment resistance of semi-rigid steel-concrete endplate composite joints, Steel Construction, 18, 1, pp. 16-19, (2003)
[8] SHI Wenlong, LI Guoqiang, XIAO Yong, Et al., Cyclic loading tests on composite beam-to-column joints with semi-rigid connections, Journal of Building Structures, 29, 5, pp. 57-66, (2008)
[9] SHI Wenlong, LI Guoqiang, Moment capacity of semi-rigid composite beam-column joints with flush end plate connections Ⅱ: under positive moment, China Civil Engineering Journal, 40, 9, pp. 30-35, (2007)
[10] WANG Jingfeng, HU Yilei, JIANG Zhi, Experimental study on composite CFTST joints with concrete slab under low cyclic loadings, Journal of Building Structures, 34, pp. 73-79, (2013)

← 1 2 →