The retrofitting of reinforced concrete column-to-beam connections

被引：38

作者：

Geng, ZJ

Chajes, MJ

Chou, TW ^{[1
]}

Pan, DYC

机构：

[1] Univ Delaware, Dept Mech Engn, Newark, DE 19716 USA

[2] Univ Delaware, Ctr Composite Mat, Newark, DE 19716 USA

[3] Univ Delaware, Dept Civil & Environm Engn, Newark, DE 19716 USA

[4] Argonne Natl Lab, Reactor Engn Div, Argonne, IL 60439 USA

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 1998年 / 58卷 / 08期

关键词：

CFRP; column-to-beam connections; development retrofit; ductility retrofit; repeated loading-unloading-reloading;

D O I：

10.1016/S0266-3538(98)00014-1

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

This paper reports the research effort in improving the ductility of concrete column-to-beam connection and the capability of connections containing insufficient development length. CFRP tow sheets were wrapped around the column near the joint region for ductility retrofitting, and were longitudinally bonded to and/or wrapped around the column near the joint with a set of steel angles and rods for development retrofitting. Repeated loading-unloading-reloading were applied on ductility specimens for simulating seismic loads. Development specimens were tested under monotonic loading. A total of 19 concrete column-to-beam connection specimens were tested. Ductility retrofitting has resulted in significant improvement in ductility and 24-35% increase in ultimate loading capacity. The development retrofitting has demonstrated 154-172% increase in ultimate loading capacity. (C) 1998 Elsevier Science Ltd. All rights reserved

引用

页码：1297 / 1305

页数：9