Plastic Hinge Relocation Methods for Emulative PC Beam-Column Connections

被引：82

作者：

Eom, Tae-Sung ^{[1
]}

Park, Hong-Gun ^{[2
]}

Hwang, Hyeon-Jong ^{[3
]}

Kang, Su-Min ^{[4
]}

机构：

[1] Dankook Univ, Dept Architectural Engn, 152 Jukjeon Ro, Gyeonggi Do 448701, South Korea

[2] Seoul Natl Univ, Dept Architecture & Architectural Engn, 599 Gwanak Ro, Seoul 151744, South Korea

[3] Hunan Univ, Coll Civil Engn, Changsha 410082, Hunan, Peoples R China

[4] Chungbuk Natl Univ, Dept Architectural Engn, 52 Naesudong Ro, Chungbuk Do 361763, South Korea

来源：

JOURNAL OF STRUCTURAL ENGINEERING | 2016年 / 142卷 / 02期

基金：

新加坡国家研究基金会;

关键词：

Precast concrete; Beam-column connection; Beam-column joint; Seismic test; Earthquake design; Concrete and masonry structures; JOINTS; FRAME; PERFORMANCE; BUILDINGS; FRP;

D O I：

10.1061/(ASCE)ST.1943-541X.0001378

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Various plastic hinge relocation methods were studied to improve the earthquake resistance of emulative precast concrete (PC) beam-column connections using PC U-shell beams. The present study used two strengthening methods (hooked bars and headed bars) and a weakening method (reduced beam bar section), to relocate the plastic hinge zone of beams away from the weak beam-column joint. Five full-scale test specimens including a conventional reinforced concrete (RC) specimen were tested to evaluate the earthquake resistance. The test results showed that the used relocation methods significantly decreased that bond-slip of beam flexural bars and joint shear cracking. As a result, the energy dissipation capacity significantly increased, compared to those of the conventional RC specimens and PC specimens without relocation methods. On the basis of the test results, design recommendations are suggested for plastic hinge relocation design of emulative PC beam-column connections. (C) 2015 American Society of Civil Engineers.

引用

页数：13

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