组合封闭式箍筋双筋混凝土梁受弯性能试验研究

发布时间：2018-01-09 14:24

本文关键词：组合封闭式箍筋双筋混凝土梁受弯性能试验研究　出处：《结构工程师》2014年06期 　论文类型：期刊论文

【摘要】：组合封闭式箍筋的使用是预制装配整体式混凝土结构关键技术之一。试验研究采用组合封闭式箍筋的双筋混凝土梁受弯性能。试验分两批:第一批试验包括13根一次浇筑梁试件,目的是考察不同箍筋形式梁受力性能差异;第二批6根叠合梁试件,考察足尺和叠合梁受弯力学性能。其他研究参数还包括受压纵筋和箍筋间距。研究表明,对于一次或叠合浇筑的双筋混凝土梁,组合封闭式箍筋可以对受压纵筋提供有效侧向约束,受压纵筋没有在梁破坏之前失稳。在本研究参数范围内,配置组合封闭式箍筋和传统封闭式箍筋双筋梁的受弯性能没有区别,可采用相同的计算方法预测受弯性能。
[Abstract]:Using a combination of closed stirrup is one of the key technique of integral prefabricated concrete structure. The experimental research on Reinforced Concrete Beams Strengthened with the combination of double closed stirrup. The test was divided into two parts: the first test includes 13 one-time-concreting specimens, the purpose is to investigate the performance differences in different forms the stirrups beams; second 6 composite beam specimen, study full-scale and composite beam flexural mechanical properties. Other parameters including compression of longitudinal reinforcement and stirrup spacing. The results show that the double reinforced concrete or a superposition beam combination of closed stirrup can provide effective lateral restraint on the compression of the longitudinal reinforcement and longitudinal reinforcement without compression in the beam before the failure of instability. In the range of parameters, the configuration and the traditional closed closed stirrup stirrup double reinforcement beam flexural performance there is no difference, using the same calculation method to predict the flexural performance.

【作者单位】：同济大学建筑工程系;
【基金】：同济大学光华基金“预制装配整体式混凝土房屋结构体系(润泰技术)关键技术研究”的资助
【分类号】：TU375.1
【正文快照】： 1引言预制装配整体式混凝土结构是以预制构件为主,经构件吊装、钢筋连接、部分施工现场浇筑而成的混凝土结构。该结构形式结合了预制结构工业化程度高、能耗低、污染小的优点,以及现浇结构整体性好的长处,符合我国目前建设资源节约型、环境友好型社会的要求,是建筑产业工业化

【共引文献】