摘要
为适应抗震设防地区对多层住宅结构具有良好抗震性能、施工简便、造价低、绿色节能等特点的发展要求,提出带斜筋单排配筋混凝土剪力墙,再结合部分免拆建筑模网技术,形成新型抗震节能多层住宅结构体系。为了解带斜筋单排配筋Z形截面墙体的抗震性能,进行2个相同配筋量的Z形截面剪力墙低周反复荷载试验,1个为普通双向单排配筋剪力墙,1个为带斜筋的双向单排配筋剪力墙。在试验基础上,对比分析其承载力、延性、刚度、滞回特性、耗能能力及破坏特征等抗震性能,建立其极限承载力简化计算模型。研究表明:带斜筋单排配筋Z形截面剪力墙的抗震性能明显优于普通双向单排配筋剪力墙,能更好地满足多层住宅结构抗震设计要求。
To satisfy the development requirements for the multi-story residential structure in seismic fortified areas, the reinforced concrete （RC for short） shear wall structure with bidirectional single row of steel bars and inclined reinforcements and combination with part of permanent formwork construction technology is proposed. Compared with traditional clay-brick structure, it has better seismic performance, energy-conserving and environment-protective. Compared with normal RC shear wall structure, it has simpler construction and lower cost. For investigating the seismic performance of this new Z-shear wall, the cyclic loading tests on two Z-shear walls with the same amount of reinforcement. One wall with bidirectional single row of steel bars and another wall with bidirectional single row of steel bars and inclined reinforcements. Based on the experimental research, load-carrying capacity, ductility, stiffness, hysteresis property, energy dissipation and failure characteristics have been analyzed and established the calculative formulas of the load-bearing capacity. It is shown that the seismic performance of Z-shear wall with inclined reinforcements is better than the normal reinforced concrete shear wall with the single row of steel bar, so it is able to meet better the requirements of seismic design of multi-story residential structure.
出处
《施工技术》
CAS
北大核心
2014年第9期63-68,共6页
Construction Technology
基金
国家自然科学基金项目(51378029)
中国中建设计集团有限公司科技项目
关键词
混凝土
斜筋
单排配筋
剪力墙
抗震
concrete
inclined reinforcement
single row of steel bar
shear wall
seismic
