大跨度闭口型压型钢板-混凝土组合楼板抗弯承载力试验研究  

EXPERIMENTAL STUDY ON FLEXURAL CAPACITY OF LONG-SPAN CLOSED PROFILED STEEL SHEETING AND CONCRETE COMPOSITE FLOOR SLABS

作　　者：李帼昌[1] 章潇[1] 杨志坚[1] 郭丰伟[1] 

机构地区：[1]沈阳建筑大学土木工程学院,沈阳110168

出　　处：《工业建筑》2016年第11期157-160,141,共5页Industrial Construction

基　　金：国家"十二五"科技支撑计划项目(2011BAJ09B0402)

摘　　要：通过对8块闭口型压型钢板-混凝土组合楼板的静力试验,对闭口型组合板的破坏特征、裂缝分布以及抗弯承载力等力学性能进行分析研究。试验结果表明:闭口型组合板破坏形态以纵向剪切破坏和弯曲破坏为主,大跨度组合板的破坏形式均为弯曲破坏。在试验研究的基础上,依据塑性截面设计法,并充分考虑组合板跨度和端部栓钉对组合板抗弯性能的影响,提出了更适合于大跨度闭口型压型钢板-混凝土组合楼板的抗弯承载力计算式,计算结果与试验结果吻合较好。Based on the static test of 8 closed profiled steel sheeting and concrete composite floor slabs,their failure modes,crack distribution and flexural capacity were studied. The test result showed that longitudinal shear failure and flexural failure were the dominated failure modes of the composite slabs,and that of all long-span specimens was flexural failure. According to plastic section design method and the full consideration of the effects of the span of composite slab and the end stud on the bending behavior of the composite slab,the simplified formula for the flexural capacities of long-span composite slabs was proposed,whose result agreed with the test result well.

关 键 词：大跨度 闭口型压型钢板 组合楼板 抗弯承载力 试验研究 

分 类 号：TU398.9[建筑科学—结构工程]