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为推进装配式复合墙结构向中高层发展,提高墙体的受力性能并改善装配式墙体连接形式,设计制作3个竖向接缝为马牙槎形式、水平连接为焊板焊接形式的中高层装配式复合墙体(竖向边缘构件配筋率不同).通过对墙体试件的拟静力试验,研究此类墙体的破坏现象、破坏机制与滞回特性等,探讨不同竖向边缘构件配筋率对墙体刚度退化、强度退化及耗能的影响;并对比多层复合标准墙体,探讨关键抗震性能指标的变化规律.结果表明:采用马牙槎形式竖向接缝与焊板焊接形式水平接缝,预制墙板与边框协同工作良好,墙体试件破坏形态合理;随着竖向构件配筋率的提高,试件的屈服荷载、峰值荷载及破坏位移逐渐增大,而当开裂位移与开裂荷载增大到一定程度时,不再上升;竖向边缘构件配筋率适中的墙体试件的钢筋应变、刚度退化、强度退化及耗能等综合性能指标较好;通过合理设计可以保证墙体具有较高的承载能力及耗能能力;与多层复合墙体相比,中高层复合墙体连接方式可靠,承载力较高,可为中高层复合墙结构体系的工程应用提供支持.
In order to promote the development of high-rise assembly-type composite wall to improve the performance of the wall and improve the assembly of wall-mounted form of connection, design and manufacture of three vertical joints in the form of horseshoe,, the horizontal connection of welded form The middle and high-rise assembly type composite wall (vertical edge member reinforcement ratio is different) .Through the quasi-static test of the wall specimen, this kind of wall is researched the destruction phenomenon, the damage mechanism and the hysteretic characteristic, The influence of the ratio of reinforcement to the edge members on the stiffness degradation, strength degradation and energy dissipation of the wall is discussed. The variation rules of the key seismic performance indexes are compared with those of the multilayer composite standard wall. The results show that: And the welded forms of the horizontal joint seam, the prefabricated wall panels and the border to work well, the wall specimen damage morphology is reasonable; with the vertical reinforcement ratio, the specimen yield load, peak load and failure displacement gradually increased When the cracking displacement and cracking load increase to a certain extent, it no longer increases. The comprehensive performance indexes such as steel strain, stiffness degradation, strength degradation and energy dissipation of wall specimens with moderate reinforcement ratio of vertical edge component it is good ; Through reasonable design can ensure that the wall has a higher carrying capacity and energy consumption; compared with the multi-layer composite wall, the middle and high-rise composite wall connections reliable, high bearing capacity for high-rise composite wall structure system Engineering applications to provide support.