摘要
通过对4片配置600 MPa级高强钢筋的混凝土剪力墙进行拟静力试验,分析各试件的破坏特征、滞回曲线、承载力及变形能力、刚度退化、耗能能力等抗震性能指标,研究600 MPa级高强钢筋用于剪力墙边缘约束端柱及墙板时对其抗震性能的影响。研究表明:试件的破坏形态为弯曲破坏;与普通钢筋混凝土剪力墙相比,端柱采用等强度代换配置高强纵筋的混凝土剪力墙的屈服荷载、位移和变形能力均有所提高,墙板配置高强分布筋的混凝土剪力墙的抗弯承载力、各项抗震性能指标也均有提升。在试验基础上提出了考虑高强钢筋的带端柱混凝土剪力墙水平承载力计算式,计算值与试验值吻合较好。
Based on the pseudo static tests on 4 reinforced concrete（ RC） shear walls with 600 MPa high-strength reinforced bars,the damage characteristics,hysteretic curves,bearing capacity,deformation capacity,rigidity degradation and energy dissipation capacity of the specimens were compared. The effect of 600 MPa high-strength reinforced bar on the seismic behavior of boundary embedded columns and wall panels of shear wall were analyzed.The results showed that the bending failure was the main failure mode of specimens. Compared with common shear wall,the yield load,displacement and deformation capacity,bending bearing capacity of specimens with high-strength steel were improved when high-strength steel was used as longitudinal reinforcement in boundary embedded columns.The flexural capacity of the shear wall with high-strength distribution bars was also improved,as well as other seismic behavior index. The calculation formula of horizontal bearing capacity of high-strength reinforced concrete shear wall with boundary embedded columns was given according to the tests,and the results showed that the calculated value was in good consistent with the experimental data.
出处
《工业建筑》
CSCD
北大核心
2017年第6期34-39,共6页
Industrial Construction
基金
天津市建委科技项目(2015-2)
