高强钢绞线网-聚合砂浆加固大偏心受压柱试验研究  

Experimental Study on Columns Strengthened with High-strength Steel Wire Mesh and Polymer Mortar under Large Eccentric Loading

作　　者：张立峰[1] 程绍革[1] 姚秋来[1] 王忠海[1] 岳茂光[1] 

机构地区：[1]中国建筑科学研究院工程抗震研究所

出　　处：《工程抗震与加固改造》2007年第3期18-23,29,共7页Earthquake Resistant Engineering and Retrofitting

基　　金：建设部研究开发项目(05-k4-18)

摘　　要：高强钢绞线网-聚合物砂浆加固技术是近几年来在国内外发展起来的新型技术。本文对9根大偏心受压柱进行了研究,其中6根为加固柱,3根为对比柱。试验表明,在对原柱截面改变较小的情况下,该加固方法能够大幅提高柱的承载力。在试验的基础上,对加固构件的极限承载力、破坏形态、裂缝分布以及荷载-跨中挠度曲线等进行了总结和分析。研究表明,该技术是一种加固效果显著,工作性能优良的加固方法。Rehabilitation of reinforced concrete members with high-strength steel wire mesh and polymer mortar is a brand new technique of structural strengthening both in China and abroad. Experiments are conducted to investigate the behavior of 9 columns including 6 strengthened specimens and 3 comparative ones under large eccentric loading. The experimental results show that the load-carrying capacity of the columns is increased obviously by the rehabilitation without too much increment of the cross-section. Based on the test results, the ultimate load-carrying capacity, mode of failure, cracking behavior and load versus mid-pan lateral deflection curves of the strengthened specimens are summarized and analyzed. It is also proved that this technique is an excellent one in the retrofitting of the reinforced concrete structures.

关 键 词：混凝土柱加固 高强钢绞线网 聚合物砂浆 极限承载力 试验研究 

分 类 号：TU375.3[建筑科学—结构工程]