[1]戎贤,乔超男,杨春晖.型钢混凝土十字形柱抗震性能试验及有限元分析[J].地震工程与工程振动,2018,(02):063-71.[doi:10.13197/j.eeev.2018.02.63.rongx.008]
 RONG Xian,QIAO Chaonan,YANG Chunhui.Seismic behavior test and finite element analysis of steel reinforced concrete cross-shaped columns[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2018,(02):063-71.[doi:10.13197/j.eeev.2018.02.63.rongx.008]
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型钢混凝土十字形柱抗震性能试验及有限元分析
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《地震工程与工程振动》[ISSN:/CN:]

卷:
期数:
2018年02
页码:
063-71
栏目:
论文
出版日期:
2018-08-03

文章信息/Info

Title:
Seismic behavior test and finite element analysis of steel reinforced concrete cross-shaped columns
作者:
戎贤12 乔超男1 杨春晖1
1. 河北工业大学 土木与交通学院, 天津 300401;
2. 河北省土木工程技术研究中心, 天津 300401
Author(s):
RONG Xian12 QIAO Chaonan1 YANG Chunhui1
1. School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, China;
2. Civil Engineering Technology Research Center of Hebei Province, Tianjin 300401, China
关键词:
型钢混凝土十字形柱低周往复荷载抗震性能有限元分析骨架曲线
Keywords:
steel reinforced concrete cross-shaped columnslow cyclic loadingseismic behaviorfinite element analysisskeleton curve
分类号:
TU375.3;TU352
DOI:
10.13197/j.eeev.2018.02.63.rongx.008
摘要:
为研究型钢混凝土十字形柱的抗震性能,对6个不同轴压比、配钢形式的试件进行低周往复荷载试验,分析滞回曲线、延性、耗能能力、残余变形和累积损伤等抗震性能指标,研究结果表明型钢混凝土十字形柱的滞回曲线饱满对称、变形能力和耗能能力良好,配钢形式为T形钢加方钢管的试件的抗震性能较好。运用ABAQUS对试件进行有限元分析,得到试件的滞回曲线、骨架曲线及刚度退化曲线与试验结果吻合较好。对骨架曲线的影响因素进一步分析,结果表明:轴压比增大,试件的极限承载力增大,但刚度退化加速;型钢屈服强度、配箍率的增大,试件的峰值荷载增大,变形能力增强;配钢率和纵筋强度增大,试件的极限承载力和初始刚度值明显提高。
Abstract:
In order to study the seismic behavior of steel reinforced concrete cross-shaped columns, six specimens with different axial compression ratios and steel deploy forms were tested under low cyclic loading. The hysteresis curve, ductility, energy dissipation capacity, residual deformation and cumulative damage and other seismic performance indicators were analyzed. The results show that the hysteretic curve was symmetrical, the plastic deformation ability and the energy dissipation capacity were fine. The seismic performance of the specimen with the steel form of T-shaped steel and square steel was better. A finite element analysis was carried out by using ABAQUS software. The hysteretic curve, the skeleton curve and the stiffness degradation curve were in good agreement with the experimental results. The factors influencing the skeleton curve were further analyzed, the results show that with the increase of the axial compression ratio, the ultimate bearing capacity of the specimen was increased while the rigidity was accelerated. With the increase of the yield strength of the steel and stirrup ratio, the peak load of the specimen was improved and the deformation capacity was enhanced. With the increase of the steel ratio and reinforcement strength, the ultimate bearing capacity and the initial stiffness value were significantly improved.

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备注/Memo

备注/Memo:
收稿日期:2017-09-06;改回日期:2017-12-15。
基金项目:河北省自然科学重点基金项目(E2017202278);天津建委科技项目(2016-8)
作者简介:戎贤(1965-),男,教授,博士,主要从事结构抗震研究.E-mail:xrong516@163.com
更新日期/Last Update: 1900-01-01