密拼缝叠合楼板抗弯极限承载力研究  

Study on ultimate flexural bearing capacity of composite floor slabs with close joints

作　　者：刘海成[1] 马川 郑旭 LIU Haicheng;MA Chuan;ZHENG Xu(School of Civil Engineering,Shenyang Jianzhu University,Shenyang 110168,China;Shenyang Weide Construction Industry Modernization Design Co.,Ltd.,Shenyang 110036,China)

机构地区：[1]沈阳建筑大学土木工程学院,辽宁沈阳110168 [2]沈阳卫德建筑产业现代化设计有限公司,辽宁沈阳110036

出　　处：《混凝土》2023年第2期149-153,共5页Concrete

基　　金：国家自然科学基金面上项目“基于新型高性能剪切增稠流体的结构隔震控制相关理论与试验研究”(52078310)。

摘　　要：通过有限元分析软件ABAQUS进行分析研究,将按双向板计算配筋的现浇楼板作为对照组,计算不同长宽比、预制层与现浇层厚度、拼缝位置的密拼叠合楼板的极限承载力。得出:不同预制层与现浇层厚度的叠合板要达到相同长宽比下现浇楼板的承载力,沿拼缝方向底部受力钢筋面积需增大的百分比。The finite element analysis software ABAQUS is used for analysis and research.The cast-in-place floor slabs reinforced by two-way slabs were used as the control group.The ultimate bearing capacity of the composite floor with different length-width ratio,thickness of precast layer and cast-in-place layer,and joint position were calculated.It is concluded that the percentage of reinforcing bar area at the bottom along the joint direction should be increased if the composite slab with different thickness of precast layer and cast-in-place layer can reach the bearing capacity of cast-in-place floor slab under the same aspect ratio.

关 键 词：密拼缝 叠合楼板 长宽比 

分 类 号：TU528.7[建筑科学—建筑技术科学]