集中荷载作用下超高强砼有腹筋约束梁抗剪强度的试验研究  

Research of shear strength of supper strength concrete beams constrained with web bars by Concentrated loads

作　　者：甘民[1] 霍小平[2] 

机构地区：[1]重庆建筑大学建工学院,重庆400045 [2]西北建筑工程学院建筑系,陕西西安710061

出　　处：《西北建筑工程学院学报（自然科学版）》1999年第3期19-23,共5页Journal of Northwestern Institute of Architectural Engineering

摘　　要：通过集中荷载作用下的１８ 根高强砼有腹筋约束梁的斜裂缝特点、破坏形态和抗剪性能，若重研究了砼强度、配箍特征值、剪跨比对试件抗剪强度的影响．依据实验结果，将几个抗剪公式对超高强砼有腹筋约束抗剪强度的适用性进行了比较．通过对试验数据的回归分析。The character of diagonal tension cracks,the failure patterns and the shear strength of the super stength concrete beam constrain with web bars were analyzed and the shear strength effected by concrete strength, the stirrup characteristic value and the shear span ratio was researched deeply after the test of eighteen supper stength concrtet beams constrained with web bars effectedby concentrated loads. In terms of the testing outcome, some shear strength equations were researched in order to find whether they are appropriated to the super strength conerete beams constranied with web bars.According to the analysis of testing data regression, the recommended equation of super strength concrete beam constrained with web bars was prefered with is appropriated conditions.

关 键 词：配箍特值 抗剪强度 高强混凝土 钢筋混凝土梁 

分 类 号：TU375.101[建筑科学—结构工程]