高强钢绞线网—聚合物砂浆加固偏压柱的试验研究

Experimental investigation on columns strengthened with high-strength steel wire mesh and polymer mortar under eccentric loading

高强钢绞线网—聚合物砂浆加固技术是近年发展起来的新型加固技术。在对9根大偏心和9根小偏心受压混凝土柱的试验研究基础上,通过对试件的破坏形态、裂缝分布、荷载—跨中挠度曲线、钢筋和钢绞线应变以及极限承载力影响因素等的分析,证明了混凝土柱用高强钢绞线网—聚合物砂浆加固后,柱整体工作性能良好,加固效果明显,可在工程中推广应用。

Rehabilitation of reinforced concrete members with high-strength steel wire mesh and polymer mortar developed in recent years is an excellent and advanced means of retrofitting.Experiments were conducted to investigate the behaviors of 18 eccentric loaded columns,and the eccentricity varies from large to small.The mode of failure,cracking behavior,load versus mid-pan lateral deflection curves,stress of reinforced bars and steel wires and ultimate load-carrying capacity of the strengthened specimens were ana...