STRENGTH AND DUCTILITY OF HIGH-STRENGTH CONCRETE COLUMNS CONFINED BY HIGH-STRENGTH LATERAL TIES

摘要：

The objective of this paper is to study the strength and ductility behaviours of high-strength concrete (HSC) columns confined by high-strength spiral lateral tics, and determine experimentally and analytically thc magnitude of the strength enhancement of confined concrete. On the basis of a concentric loading test of 31 high-strength concrete columns confined by high-strength spiral lateral ties, this paper studied the failure mode, strength and ductility of the confined concrete columns, and evaluated the influences of the tie yield strength, tie spacing and tic configuration on the characteristics of strength and ductility. Additionally, this paper proposed a method to compute the stress in the transverse reinforcement at maximum concrete strength and an empirical equation to determine the strength enhancement, which showed good correlation with experimental results.

关键词： High-strength concrete (HSC) Brittle failure High-strength lateral ties Confined concrete

作者: Kun Yang Qing-Xuan Shi Wei-Shan Jiang Jin-Jie Men Qi-Fang Xie

作者单位: College of Civil Engineering, Xian University of Architecture and Technology, Xian 710055,P.R. China

会议类型: 国际会议

会议名称: 第十届国际结构工程青年学者研讨会(The Tenth International Symposium on Structural Engineering for Young Experts)

会议地点: 长沙

会议语种:英文

页码: 639-644

在线出版日期: 2008-10-19（万方平台首次上网日期，不代表论文的发表时间）