预制装配式螺栓连接RC梁柱节点的滞回性能

兰州理工大学学报 ›› 2023, Vol. 49 ›› Issue (5): 134-141.

预制装配式螺栓连接RC梁柱节点的滞回性能

丁克伟^*, 刘文杰, 陈伟

安徽建筑大学土木工程学院, 安徽合肥 230601

收稿日期:2020-12-22 出版日期:2023-10-28 发布日期:2023-11-07
通讯作者: 丁克伟(1962-),男,安徽合肥人,博士,教授,博导. Email:dingkw@ahjzu.edu.cn
基金资助:
国家自然科学基金(11472005),国家重点研发计划重点专项资助项目(2016YFC0701500),安徽省自然科学基金(1908085ME173)

Research on hysteretic performance of RC prefabricated beam-column joint with bolted connections

DING Ke-wei, LIU Wen-jie, CHEN Wei

College of Civil Engineering,Anhui Jianzhu University, Hefei 230601, China

Received:2020-12-22 Online:2023-10-28 Published:2023-11-07

摘要/Abstract

摘要： 为研究预制装配式螺栓连接RC梁柱节点的滞回性能,采用低周往复荷载加载方式对该节点构件的梁端进行试验,并用ABAQUS有限元分析软件建立了该节点的三维有限元模型,对该模型进行数据分析,发现与试验结果较吻合,在此基础上,对试件进行变参数分析,通过试验改变螺栓强度和在有限元模型中改变柱混凝土强度来分析试件抗震性能.结果表明:该节点经过试验和数值模拟均表现出良好的抗震性能,满足“强柱弱梁”的抗震规范要求;螺栓强度的增加能有效提升节点的承载力和耗能能力;在相同加载制度下,柱混凝土强度的改变对节点的滞回性能影响不大,预制柱与预制梁混凝土强度保持一致的情况下,构件节点的滞回曲线饱满,抗震性能良好.

关键词: 预制装配式混凝土, 螺栓连接, 梁柱节点, 数值模拟, 抗震性能

Abstract: In order to study the hysteretic performance of RC prefabricated bolted beam-column joint,low-cyclic loading test was carried out at the beam end of this joint. Then the finite element analysis software ABAQUS is used to establish the three-dimensional finite element model of the joint followed with data analyzing. It is found that the data analysis results are in good agreement with the test results. On this basis,the test specimens are analyzed with variable parameters,and the seismic performance of the test specimens is analyzed by changing the bolt strength and the column concrete strength in the finite element model. The results show that the joint present good seismic performance in experiments and numerical simulations, which meet the seismic code requirements of strong column and weak beam. The increase of bolt strength can effectively improve the bearing capacity and energy dissipation capacity. Under the same loading system,the enhancement of column concrete strength has little effect on the hysteretic performance of the joint. With the same concrete strength of the beam and column, both hysteretic curves of the joints are full which behave great seismic performance.

Key words: prefabricated concrete, bolted connection, beam-column joint, numerical simulation, hysteretic performance

中图分类号:

TU375.4

丁克伟, 刘文杰, 陈伟. 预制装配式螺栓连接RC梁柱节点的滞回性能[J]. 兰州理工大学学报, 2023, 49(5): 134-141.

DING Ke-wei, LIU Wen-jie, CHEN Wei. Research on hysteretic performance of RC prefabricated beam-column joint with bolted connections[J]. Journal of Lanzhou University of Technology, 2023, 49(5): 134-141.

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