SMPM加固过火梁的抗弯试验研究  

Experimental study on flexural behavior of fire-exposed RC beams strengthened with SMPM

作　　者：姚志华 黄世敏[1] 姚秋来[1] 岳茂光[1] 张立峰[1] 

机构地区：[1]中国建筑科学研究院工程抗震研究所

出　　处：《四川建筑科学研究》2007年第S1期109-113,共5页Sichuan Building Science

摘　　要：SMPM加固技术即高强钢绞线网片—聚合物砂浆复合面层加固技术是一种新兴的加固技术,本文对3根RC梁进行受弯性能加固试验研究,BF—1为未过火对比梁,BFF—1为过火的对比梁,BFF—2为过火加固梁。通过对试验构件的破坏形态,裂缝分布,荷载-挠度曲线,极限承载力等方面的分析对比,表明普通RC梁在一般过火条件下,其抗弯承载力和刚度有一定程度的降低,而采用SMPM加固后的过火RC梁抗弯承载力和刚度有显著提高,可恢复到其过火前的水平。Rehabilitation with SMPM(high-strength steel wire mesh and polymer mortar) is a new technique of structural strengthening.Experiments were conducted to investigate the flexural behavior of 3 RC beams.BF1 is a comparative beam which is not on fire,BFF-1 is a comparative one fireexposed,and BFF-2 is a strengthened specimen after fire.The mode of failure,cracking behavior,load versus deflection curves and ultimate load-carrying capacity of the strengthened specimens were analyzed.The results showed that the fl...

关 键 词：高强钢绞线网 聚合物砂浆 高强钢绞线网—聚合物砂浆复合面层 过火梁抗弯加固 试验研究 

分 类 号：TU375.1[建筑科学—结构工程]