钢绞线网片聚合物砂浆加固RC梁抗弯性能试验  

Flexural performance test of RC beams reinforced with steel strand mesh polymer mortar

作　　者：孟锦秀 郑维良 季长征 齐玮 丁通 MENG Jinxiu;ZHENG Weiiang;JI Changzheng;QI Wei;DING Tong(Shandong Beite Construction Project Management Consulting Co.,Ltd.,Jinan 250102,Shandong,China;Shandong Electric Power Construction First Engineering Co.,Ltd.,Jinan,Shandong,250100,China;Shandong Construction Engineering Quality Inspection and Testing Center Co.,Ltd.,Jinan 250100,Shandong,China;Shandong Jianke Special Construction Engineering Technology Center Co.,Ltd.,Jinan 250031,Shandong,China)

机构地区：[1]山东贝特建筑项目管理咨询有限公司,山东济南250102 [2]山东电力建设第一工程有限公司,山东济南250100 [3]山东省建筑工程质量检验检测中心有限公司,山东济南250100 [4]山东建科特种建筑工程技术中心有限公司,山东济南250031

出　　处：《工程建设》2024年第7期1-5,共5页Engineering Construction

基　　金：山东省住房和城乡建设厅科技计划资助项目(2021ZD005&2021ZD006)。

摘　　要：为研究钢绞线网片聚合物砂浆加固技术的加固作用,对钢绞线网片聚合物砂浆加固RC梁进行受弯试验研究。通过设计对比试件,分析梁的混凝土应变、受弯承载力、跨中挠度及裂缝开展情况。研究结果表明:1)经过加固的RC梁仍符合平截面假定,且受弯承载力、刚度、裂缝状态等受力性能有了不同程度的改善;2)钢绞线网片聚合物砂浆加固法作为混凝土受弯构件加固手段,具有一定的适用性。本文成果可为混凝土受弯构件的加固设计提供一定的依据。In order to study the reinforcing effect of steel strand mesh polymer mortar reinforcment technology,the flexural test study of RC beams reinforced with steel strand mesh polymer mortar is carried out.Through the design and comparison of specimens,the concrete strain,flexural capacity,mid-span deflection and crack development of the RC beams are analyzed.The results show that:1)The reinforced RC beams still conforms to the assumption of flat cross-section,and the mechanical properties such as flexural capacity,stiffness,and crack state have been improved to varying degrees;2)As a means of reinforcing concrete flexural components,the steel strand mesh polymer mortar reinforcement method has certain applicability.The results can provide a certain basis for the reinforcing design of concrete flexural components.

关 键 词：钢绞线网片聚合物砂浆 加固 RC梁 抗弯性能 

分 类 号：TU375.1[建筑科学—结构工程]