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- 2018
一种装配整体式混凝土剪力墙的抗震性能试验
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Abstract:
为提高装配整体式混凝土剪力墙水平接缝连接的安全性及施工便捷性, 提出一种配有X型斜筋的新型水平后浇接缝的连接方法. 设计3片预制剪力墙试件进行拟静力试验, 研究后浇接缝高度的不同对预制试件抗震性能的影响规律, 并与现浇试件进行对比. 结果表明：预制试件的破坏形态与现浇试件相似, 承载力略低于现浇试件. 试件PC-1具有较好的变形能力和延性, 能够满足抗震要求, 试件PC-2和试件PC-3变形能力和延性低于现浇试件. 墙体底部后浇接缝高度对抗震性能有一定的影响, 装配整体式混凝土剪力墙水平接缝采用合理的连接方法, 可以获得和现浇墙体基本相当的抗震性能.
To improve the safety and construction convenience of the assembled monolithic concrete shear wall with horizontal joints，an innovative connection method of post-cast strip with X-shaped oblique reinforcement was proposed. Three precast specimens and a cast-in-place specimen were tested and compared under the quasi-static test to investigate the influences of post-cast strip with different heights on the seismic performance of precast specimens. Results show that the failure pattern of the precast specimens is nearly the same as that of the cast-in-place specimen. Lateral bearing capacity of the precast specimens is smaller than that of the cast-in-place specimen. The deformability and ductility of specimen PC-1 are relatively better and the seismic requirements can be satisfied. Deformability and ductility of PC-2 and PC-3 are poorer than that of the cast-in-place specimen. The post-cast strip of the wall bottom has impact on seismic performance. Assembled monolithic concrete shear wall with reasonable horizontal joints can achieve the seismic performance similar to that of the cast-in-place specimen
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