（1 南京航空航天大学航空宇航学院， 南京 210016；  2 江苏省江建集团有限公司， 扬州 225200； 3 南京水利科学研究院， 南京 210029）

［摘要］通过对8块压型钢板-轻骨料混凝土组合楼板进行两点对称集中加载的静力试验，考察了组合楼板的破坏特征、变形性能及受力性能。研究结果表明，对于在压型钢板表面布置抗剪钢筋以及在压型钢板端部设置栓钉的组合楼板，其承载力主要受弯曲破坏控制。在其他条件相同的情况下，抗剪钢筋间距对受弯极限承载力影响不大。根据塑性设计理论，提出了组合楼板截面应力分布计算模型，建立了压型钢板-轻骨料混凝土组合楼板的受弯极限承载力计算公式，并验证了其适用性。

［关键词］压型钢板； 轻骨料混凝土； 组合楼板； 受弯承载力

中图分类号：TU398， TU317-文献识码：A文章编号：1002-848X(2017)16-0070-04

Experimental study on flexural bearing capacity of profiled steel sheet-light-weight aggregate concrete composite slabs

Sun Yueyang1, Zhao Xinming1, Zhao Lin2, Xu Yi′an2, Hu Shaowei3

（1 College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China; 2 Jiangsu Jiangjian Group Co., Ltd., Yangzhou 225200, China; 3 Nanjing Hydraulic Research Institute, Nanjing 210029, China）

Abstract:Static test was carried out on the 8 specimens of profiled steel sheet light-weight aggregate concrete composite slabs under two points symmetry concentrated loadings to research the damage characteristics, deformation performance and bearing capability. The study results show that the bearing capability of composite slabs with end anchorage and shear reinforcement on the profiled steel is mainly controlled by flexural failure. If other conditions are unchanged, the shear reinforcement spacing has little influence on ultimate flexural bearing capacity. According to the plastic design theory, the calculation model of section stress distribution of composite slabs was put forward, the calculating formula of ultimate flexural bearing capability of profiled steel sheet-light-weight aggregate concrete composite slabs was presented and its applicability was verified.

Keywords:profiled steel sheet; light-weight aggregate concrete; composite slab; flexural bearing capacity

*国家自然科学基金项目（51279111），住房和城乡建设部科学技术项目（2013-K2-21），水利部公益性行业科研专项经费项目（201501036）。

作者简介：孙岳阳，硕士，Email：syyang0118@126.com。