摘要
本文考虑了轴压比、剪跨比、边缘约束构件及其含箍特征值对剪力墙位移延性的影响,建立了考虑端部混凝土约束的剪力墙位移延性比的计算方法,并用39片不同轴压比的钢筋混凝土剪力墙在往复水平荷载作用下的延性比试验结果对本文计算方法进行了验证。对影响剪力墙位移延性的因素进行了参数分析,试验和理论分析都表明,为保证剪力墙达到预期的延性要求,应限制剪力墙的轴压比并设置合适的约束边缘构件。
An attempt has been made to investigate the deformation ductility of RC shear walls under cyclic loading. A calculation method for the deformation ductility ratio of shear walls is established with consideration of the confinement of boundary zones at both ends. The influence of axial compression ratio, shearspan ratio and the characteristic value of stirrup in confined boundary zone on the ductility of the walls are studied. The experimental results of 39 RC shear walls subjected to horizontal cyclic loading with different axial compression ratio are employed to verify the proposed calculation method. Using the established method, factors influencing the deformation ductility of shear walls are studied. It is concluded that to make the shear walls have expected ductility, the axial compression ratio should be limited and the confined boundary zones must be provided.
出处
《河北工程大学学报（自然科学版）》
CAS
2010年第1期7-11,共5页
Journal of Hebei University of Engineering:Natural Science Edition
基金
国家自然科学基金(90815029)
国家科技支撑计划项目(2006BAJ01B02)
关键词
钢筋混凝土剪力墙
轴压比
剪跨比
约束边缘构件
位移延性
RC shear wall
axial compression ratio
shear - span ratio
confined boundary zone
displacement ductility
