装配式外包钢-混凝土组合梁楼盖竖向受力性能分析  

Vertical Mechanical Behavior Analysis of Prefabricated Steel-clad Concrete Composite Beam Floor

作　　者：王霄 杜德润[1] 邱天朔 毛新元 姚世杰 Wang Xiao;Du Derun;Qiu Tianshuo;Mao Xinyuan;Yao Shijie(Ocean University of China,Qingdao 266404,China;Shandong Construction Engineering Quality and Safety Center,Jinan 250011,China)

机构地区：[1]中国海洋大学,青岛266404 [2]山东省建设工程质量安全中心,济南250011

出　　处：《特种结构》2024年第6期6-11,共6页Special Structures

摘　　要：本文构建了装配式外包钢混凝土组合梁楼盖体系,通过有限元分析整浇式和装配式组合楼盖竖向受力性能区别,探究装配式组合楼盖的可行性。对装配式双向组合楼盖的破坏模式进行分析,运用塑性铰线法和比拟板法计算楼盖“板式破坏”和“梁式破坏”两种基本破坏模式的极限承载力,结果表明:装配式组合楼盖与整浇式组合楼盖在极限承载力方面没有较大区别,刚度有所下降,但仍有较好使用性能;极限承载力计算方法可较为准确判断结构的破坏模式,可为此类结构的改进提供参考。In this paper,the assembled steel-encased concrete composite beam floor system was constructed.The feasibility of the assembled composite floor was explored by finite element analysis of the vertical mechanical performance difference between the cast-in-place and the assembled composite floor.The failure mode of the assembled two-way composite floor was analyzed,and the ultimate bearing capacity of the two basic failure mechanisms of'plate failure'and'beam failure'was calculated by using the plastic hinge line method and the analogy plate method.The results showed that there is no significant difference in the ultimate bearing capacity between the assembled composite floor and the cast-in-place composite floor,and the stiffness decreases,but there is still good performance.The calculation method of ultimate bearing capacity can accurately judge the failure mode of the structure,which would provide reference for the improvement of similar structures.

关 键 词：外包钢-混凝土组合梁 装配式组合楼盖 破坏模式 极限承载力 有限元分析 

分 类 号：TU398[建筑科学—结构工程]