建筑结构学报2017，Vol.38Issue(3)：84-92,9.DOI:10.14006/j.jzjgxb.2017.03.009
带竖向接缝的预制混凝土空心模剪力墙受弯性能试验研究
Experimental study on flexural performance of precast concrete shear walls built with precast two-way hollow slabs with vertical joints
摘要
Abstract
Quasi-static tests of six precast concrete shear walls built with precast two-way hollow slabs with vertical joints were completed under constant compression load.The failure process and mode were clarified.The flexural behavior of precast concrete shear walls and connection performance of vertical joints were studied.The test results indicate that the failure mode of precast concrete shear walls is similar to that of reinforced concrete shear walls,characterized by the crushing of root concrete and buckling of longitudinal reinforcement of boundary members.The failure region of some precast shear walls developed to the central wall panels,resulting in the separation of precast concrete from cast-in concrete.It is also proved that the vertical joint can guarantee the integrity of precast concrete shear walls,and has good influence on the flexural behavior.So the structure of vertical joint is reasonable and connection performance is reliable.The rotation ductility ratios of precast concrete shear walls are between 4.35 and 12.54,indicating good ductility.As the increasing of longitudinal reinforcement of boundary members and axial compression ratio,the flexural capacity improves and the crushing area increases.As a result,when using single-row splice rebars,there is no effect on the bearing behavior of percast concrete shear wall.The calculation formulas of flexural capacity in GB 50010-2010'Code for design of concrete structures' are suitable for calculating the bearing capacity of precast concrete shear walls,and the calculation is conservative.关键词
预制混凝土剪力墙/空心模/竖向接缝/拟静力试验/受弯性能Key words
precast concrete shear wall/hollow slab/vertical joint/quasi-static test/flexural behavior分类
建筑与水利引用本文复制引用
初明进,刘继良,侯建群,任宝双,刘木禾,邱光明,王刚..带竖向接缝的预制混凝土空心模剪力墙受弯性能试验研究[J].建筑结构学报,2017,38(3):84-92,9.基金项目
国家自然科学基金项目(51378450,51508490). （51378450,51508490）
