预制装配双向受力板的一种特殊UHPC接缝力学性能研究  

Investigation of Mechanical Properties of a Special Ultra-high Performance Concrete Joints with Prefabricated Bidirectional Loaded Slabs

作　　者：边小宇 Bian Xiaoyu(Shanghai Urban Construction Design&Research Institute(Group)Co.,Ltd.,200125,China)

机构地区：[1]上海市城市建设设计研究总院(集团)有限公司,200125

出　　处：《特种结构》2023年第4期61-67,共7页Special Structures

摘　　要：为验证超高性能混凝土(UHPC)接缝对预制装配板双向性能的影响,本文采用数值仿真分析的方法,研究了超高性能混凝土(UHPC)连接预制装配式双向受力结构板湿接缝的力学性能。通过与同等尺度整浇结构板比较,讨论了装配式结构板的双向受力特性及湿接缝受力特性对装配式结构板的影响。结果表明UHPC接缝能够有效控制装配板在屈服前的变形及受力,达到与完整板相当的受力变形性能,同时满足规范的变形要求,并具备双向受力变形性能,证明了将UHPC湿接缝用于双向受力预制板连接的可行性。In order to verify the influence of ultra-high performance concrete(UHPC)joints on the bidirectional performance of precast assembly plate,the mechanical properties of wet joints of Ultra-High Performance Concrete(UHPC)connected assembly bidirectional structural slab were studied by numerical simulation.By comparing with the same scale monolithic structural slab,the influence of the bidirectional force characteristics and wet joint force characteristics on the assembly structural slab was discussed.The results showed that the joints of UHPC can effectively control the deformation and stress of the assembly slab before yield,and achieved the same mechanical deformation performance as the monolithic slab.At the same time,it met the deformation requirements of the specification,and had the bidirectional mechanical deformation performance,which proved the feasibility of applying the wet joint of UHPC to the bidirectional mechanical assembly slab.

关 键 词：地下水厂 预制装配板 双向受力 超高性能混凝土 湿接缝 数值模拟 

分 类 号：TU756.4[建筑科学—建筑技术科学]