带约束预应力混凝土空心板整浇楼面受力性能研究  

Study on Flexural Performance of Prestressed Concrete Hollow-Core Slab Integrated Floor with Constraints

作　　者：李梦南 许清风 邵棚 韩重庆 陈玲珠 LI Mengnan;XU Qingfeng;SHAO Peng;HAN Chongqing;CHEN Lingzhu(China Resources Land(Ningbo)Limited,Ningbo 315000,China;Shanghai Key Laboratory of Engineering Structure Safety,SRIBS Co.,Ltd.,Shanghai 200032,China;School of Civil Engineering,Southeast University,Nanjing 210096,China;Architects&Engineers Co.,Ltd.,Southeast University,Nanjing 210096,China)

机构地区：[1]华润置地(宁波)有限公司,宁波315000 [2]上海市建筑科学研究院有限公司上海市工程结构安全重点实验室,上海200032 [3]东南大学土木工程学院,南京210096 [4]东南大学建筑设计研究院有限公司,南京210096

出　　处：《结构工程师》2020年第4期114-119,共6页Structural Engineers

基　　金：上海市科委优秀技术带头人项目(16XD1422400);上海市科委标准项目(17DZ2202600)。

摘　　要：进行了带约束预应力混凝土空心板整浇楼面受力性能的试验研究、理论分析和数值模拟。结果表明:由于约束和整浇楼面的作用,带约束预应力混凝土空心板整浇楼面的极限承载力远大于4块预应力混凝土空心板单块极限承载力之和;带约束预应力混凝土空心板整浇楼面在破坏时形成了明显的塑性铰线、板底钢筋拉断;采用ABAQUS软件的数值模拟结果和试验结果吻合较好。The Experimental research,theoretical analysis and numerical simulation of the mechanical performance of prestressed concrete(PC)hollow-core slab integrated floor with constraints were conducted.The ultimate bearing capacity of the PC hollow-core slab integrated floor with constraints was greatly larger than the sum of ultimate bearing capacity of four single PC hollow-core slabs because of the constraints and the cast-in-place layer.The specimen developed clear plastic hinge lines,and the reinforcements at the bottom fractured at failure.The performance of specimen was simulated by ABAQUS,and the simulated results agreed well with the test results.

关 键 词：预应力混凝土空心板 整浇楼面 约束 塑性铰线 受力性能 

分 类 号：TU378[建筑科学—结构工程]