Experimental Evaluation of Precast Concrete Beam-Column Connections with High-strength Steel Rebars

被引：27

作者：

Guan, Dongzhi ^{[1
]}

Guo, Zhengxing ^{[1
]}

Jiang, Cheng ^{[2
]}

Yang, Sen ^{[1
]}

Yang, Hui ^{[1
]}

机构：

[1] Southeast Univ, Sch Civil Engn, Nanjing 210018, Jiangsu, Peoples R China

[2] Hong Kong Polytech Univ, Hong Kong, Peoples R China

来源：

KSCE JOURNAL OF CIVIL ENGINEERING | 2019年 / 23卷 / 01期

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

precast concrete; beam-column connection; high-strength steel rebar; reversed cyclic test; seismic performance; PERFORMANCE; BEHAVIOR; FRAMES; REGIONS;

D O I：

10.1007/s12205-018-1807-7

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A novel precast concrete beam-column connection partially reinforced with high-strength steel rebars of a yield strength greater than 630 MPa was introduced to avoid reinforcement obstruction in connection zones. Reversed cyclic loadings were applied to fullscale specimens to evaluate their seismic performance. For the first precast specimen, high-strength steel rebars acted as bottom longitudinal bars of the beams. For the second precast specimen, high-strength steel rebars were used as both bottom longitudinal bars and embedded bars that were anchored into the joint. The results show that the new precast connection exhibits a satisfactory seismic resistance. The anchored embedded bars are not necessary in the new system for a limited improvement in the structural performance. The mechanical equilibrium of the rectangular stress block method can be applied to estimate the strength of the new connection using the design philosophy of strong column-weak beam.

引用

页码：238 / 250

页数：13

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