腹部开设圆孔钢筋混凝土梁的试验研究(Ⅴ)  

An Experimental Study on Reinforced Concrete Beam with Circular Opening (Ⅴ)

作　　者：杨玉华[1] 蔡健[1] 张学文[1] 张剑麟 

机构地区：[1]华南理工大学土木工程系,广东广州510640 [2]广东省移动通信总公司,广东广州510100

出　　处：《华南理工大学学报（自然科学版）》2001年第3期84-86,共3页Journal of South China University of Technology(Natural Science Edition)

基　　金：广东省自然科学基金资助项目! (95 0 119;广东省高校"千百十工程"优秀人才培养基金资助项目! (粤高教科 [1997]5号

摘　　要：通过试验 ,研究了采用在圆孔周边设置加强钢环的腹部开设圆孔的钢筋混凝土梁的破坏特点、加强环筋的应变特点、挠度、裂缝宽度及承载力等力学特性 ,指出该形式的加强筋对改善开孔梁的受力性能效果不大 。The behavior of the reinforced concrete beam with the circular opening is affected by the enhancing stirrups and diagonal reinforcement. This paper, based on the experiment, studies the mechanical behavior of the reinforced concrete beams with the circular opening, which are enhanced by the steel ring. The experimental results are discussed, such as the crack propagation and failure process, the strain of steel ring, the deformation, the width of diagonal cracking, and the capacity_bearing shear which shows that the enhancing steel ring can not improve the mechanical behavior of the reinforced concrete beams with circular opening.

关 键 词：钢筋混凝土梁 圆孔 加强环筋 承载力 受力性能 应变特点 挠度 裂缝宽度 

分 类 号：TU375.102[建筑科学—结构工程]