作　　者： (贺小项）; (李帼昌）; (杨志坚）;

机构地区： 大连理工大学土木工程学院,辽宁大连116024 沈阳建筑大学土木工程学院,沈阳110168

出　　处： 《工业建筑》 2017年第8期157-163,共7页

摘　　要： 对工程中常用的开口、闭口以及缩口3种压型钢板-混凝土组合楼板进行弯曲性能试验,考察不同类型压型钢板-混凝土组合楼板的破坏形态、界面剪切黏结性能及纵向抗剪承载能力。研究结果表明:开口型和缩口型组合楼板在外荷载作用下发生纵向剪切破坏;闭口型随着跨度的增加,破坏模式由纵向剪切破坏转为弯曲破坏。通过m-k法对组合楼板纵向剪切承载力进行计算,结果表明混凝土强度对组合楼板纵向抗剪承载力影响不大。 Profiled steel sheeting-concrete composite slab consists of profiled steel sheeting and concrete. Flexural performance tests were carried out for three sorts of profiled steel sheeting-concrete composite slabs. The paper presented the preparation and results of flexural performance tests to investigate the failure modes,interfacial shear bond properties,and the shear resistance capacity of the composite slabs. The results showed that the dovetailed and the trapezoidal profiled sheetings were failed by longitudinal shear. The failure mode of the closed profiled sheetingconcrete slabs turned from shear failure to flexural failure,alone with the increment of span. Through the m-k method for the calculation of the longitudinal shear bearing capacity of composite slabs,the results showed that the concrete strength had little effect on the longitudinal shear bearing capacity.

关 键 词： 组合楼板 破坏机理 剪切黏结承载力 压型钢板截面类型