建筑结构学报2017，Vol.38Issue(6)：23-33,11.DOI:10.14006/j.jzjgxb.2017.06.003
低轴压比半装配式单排配筋再生混凝土剪力墙抗震性能试验研究
Experimental study on seismic performance of semi-assembled recycled concrete shear wall with single row of steel bars under low axial compression ratio
摘要
Abstract
A new-style semi-assembled shear wall structure with single row of steel bars is proposed.This type of structure consists of upper precast concrete shear walls with reserved holes,lower precast shear walls with single row of button-head steel bars,slurry layer between upper and lower precast shear walls,and cast-in-place concealed columns between longitudinal and transversal walls.Button-head steel bars extending from the surface of lower precast shear walls could be anchored in the reserved holes of upper precast shear walls,with high strength grouting material filling the holes.Four Ⅰ-shaped recycled concrete shear wall specimens with single row of steel bars were tested under low cyclic loading with low axial compression ratio,including two semi-assembled and two cast-in-place shear walls with different shear span ratios.The bearing capacity,stiffness,ductility and hysteretic characteristics were comparatively analyzed.The damage evolution process and seismic mechanism was revealed.Test results show that shear walls with smaller shear span ratio of 1.0 present shear failure with higher bearing capacity,specimens with shear span ratio of 1.5 tend to flexural-shear mode failure,mainly in flexural failure,with lower bearing capacity but good ductility.With the design axial compression ratio of 0.15,the comprehensive seismic performance of semi-assembled recycled concrete shear wall with single row of steel bars is close to that of cast-in-place shear wall,and it could be used for lowrise and multi-story buildings.关键词
半装配式结构/单排配筋剪力墙/再生混凝土/墩头钢筋/灌浆连接/低周反复加载试验/抗震性能Key words
semi-assembled structure/shear wall with single row of steel bars/recycled concrete/button-head steel bar/grouting connection/cyclic loading test/seismic performance分类
建筑与水利引用本文复制引用
刘程炜,曹万林,董宏英,秦成杰,王世蒙..低轴压比半装配式单排配筋再生混凝土剪力墙抗震性能试验研究[J].建筑结构学报,2017,38(6):23-33,11.基金项目
国家重点研发计划子项目(2016YFC0701902). （2016YFC0701902）
