型钢高强混凝土柱抗剪承载力的试验研究  

Experimental study on the shear strength of steel reinforced high-strength concrete columns

作　　者：李俊华[1] 王新堂[1] 赵鸿铁[2] 薛建阳[2] 

机构地区：[1]宁波大学建筑工程与环境学院,浙江宁波315211 [2]西安建筑科技大学土木工程学院,陕西西安710055

出　　处：《西安建筑科技大学学报（自然科学版）》2006年第2期178-183,共6页Journal of Xi'an University of Architecture & Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(50478044);陕西省自然科学研究计划项目(2002E213);宁波大学重点科研项目(Z200504)

摘　　要：通过20个混凝土强度为65.3—84.9 MPa的型钢高强混凝土柱在轴力和水平荷载共同作用下的试验,对型钢高强混凝土柱的抗剪性能进行了研究.试验主要考虑剪跨比、轴压比、配箍率和混凝土强度四个参数对构件抗剪性能的影响.由试验得到了水平荷载下型钢高强混凝土柱的破坏形态,分析了剪跨比、轴压比、配箍率和混凝土强度对构件抗剪承载能力的影响,提出了型钢高强混凝土柱抗剪承载能力的计算公式,公式的计算结果与试验结果符合较好.Based on the twenty specimens with concrete strength varied from 65.3 MPa to 84.9 MPa subjected to constant axial compression force and horizontal load, the shear performance of steel reinforced high-strength concrete columns is studied. Four factors, that is, shear span ratio, axial compression ratio, stirrup ratio and grade of concrete strength are taken into consideration. Failure patterns of specimens are obtained and the influence of shear span ratio, axial compression ratio, stirrup ratio and grade of concrete strength on shear performance of steel reinforced high-strength columns is analyzed. The calculating formula for shear strength of steel reinforced high-strength columns is presented and calculating results have good agreements with test results.

关 键 词：型钢高强混凝土 柱 抗剪性能 破坏形态 抗剪承载力 

分 类 号：O34[理学—固体力学] TU312[理学—力学]