半装配式再生混凝土低矮剪力墙抗震性能试验

发布时间：2018-06-24 02:38

本文选题：半装配式 + 单排配筋　；参考：《哈尔滨工业大学学报》2017年06期

【摘要】：为研究半装配式单排配筋混凝土剪力墙结构的抗震性能以及再生混凝土在预制剪力墙中的应用效果,设计了4个不同轴压比下工字形半装配式单排配筋普通混凝土和再生混凝土剪力墙试件,试件由底部带预留孔的上层预制剪力墙、带墩头竖向分布钢筋的基础梁、二者之间的坐浆层以及纵横墙交接处的现浇暗柱组成,基础梁顶部伸出的单排竖向墩头钢筋伸入上层预制墙体底部的预留孔中,采用灌浆锚固的方法连接,并进行了低周反复荷载试验,分析了各个试件的破坏特征、承载力、刚度以及耗能等.结果表明:在水平荷载作用下,预制剪力墙与基础梁之间的连接部位出现水平通缝并产生较小滑移,墙身分布着X形交叉斜裂缝;随着轴压比的增大,试件的承载力提高,但延性较差;再生混凝土试件的破坏形态和受力性能与普通混凝土试件相近,再生混凝土可用于工厂预制的结构构件中;半装配式单排配筋混凝土剪力墙构造简单、施工方便,且抗震性能良好,可用于低多层剪力墙结构中.
[Abstract]:In order to study the seismic performance of semi assembled single row reinforced concrete shear wall structure and the application effect of recycled concrete in prefabricated shear walls, 4 specimens of semi assembled single row reinforced single row reinforced concrete and recycled concrete shear wall under different axial compression ratios were designed. The foundation beam of the pier head is vertically distributed, the slurry layer between the two and the cast in place columns at the crossings of the vertical and horizontal walls, and the single row of vertical piers that are extended into the reserved holes in the bottom of the upper precast wall, are connected by the method of grouting and anchorage, and the low cycle repeated load tests are carried out, and the breaking of each specimen is analyzed. The bad characteristics, bearing capacity, stiffness and energy consumption, and so on. The results show that the horizontal joint between the precast shear wall and the foundation beam has a horizontal joint and produces small slip under the horizontal load, and the wall body is X shaped cross slanting cracks. With the increase of the axial compression ratio, the bearing capacity of the specimen is increased, but the ductility is poor; the damage of the recycled concrete specimen is damaged. The morphological and mechanical properties are similar to those of the ordinary concrete specimens. The recycled concrete can be used in the prefabricated structural members of the factory, and the semi assembled single row reinforced concrete shear wall is simple in construction, convenient in construction and good in seismic performance, and can be used in low storey shear wall structures.
【作者单位】：城市与工程安全减灾教育部重点实验室(北京工业大学);
【基金】：国家重点研发计划(2016YFC0701902)
【分类号】：TU352.11;TU398.2

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