摘要
在已有试验研究的基础上,采用桁架-拱模型对钢筋混凝土剪力墙塑性铰区的受剪机理进行了研究。引入了考虑轴压比的混凝土强度有效系数;分析了剪力墙截面极限转角、水平分布钢筋、桁架与拱模型倾角等因素对剪力墙受剪承载力的影响;并在此基础上建立了剪力墙塑性铰区受剪承载力计算公式。理论研究与试验分析表明:基于桁架-拱模型的剪力墙受剪承载力公式具有一定的理论依据和实用价值,满足实际工程计算需要。
Based on the previous experimental research, the shear mechanism of yield hinge regions of the reinforced concrete shear wall is studied by a truss-arch model. It is brought in the effective coefficient of concrete strength with considering the axial load ratio and analyzed the influence of some factors on the shear capacity of the shear wall, such as the ultimate rotation of the cross-section of shear wall, the horizontal distribution reinforcement, the truss, the inclination angle of the arch model and others. On this basis, the shear capacity calculation formula of the yield hinge regions of the shear wall is put forward. Theoretical research and test analysis show that the shear capacity calculation formula of the shear wall which based on the truss-arch model are both valuable for theoretical analysis and practical application, and can meet practical engineering.
出处
《工业建筑》
CSCD
北大核心
2008年第12期59-64,共6页
Industrial Construction
基金
国家自然科学基金项目(50678146)
关键词
剪力墙
塑性铰区
抗剪性能
桁架-拱模型
混凝土强度有效系数
shear wall
yield hinge regions
shear capacity
truss and strut actions
effective factor of concrete strength
