摘要
基于钢筋混凝土软化桁架理论,考虑砌体受力各向异性的性质,引入双轴作用下砌体的强度准则,采用软化系数综合考虑砌体的特性,建立配筋砌体软化剪压强度模型。采用该理论模型分析灌孔配筋砌体剪力墙剪压区的受力机理,提出相应的数值算法。通过剪力墙在不同曲率下受剪和受弯承载力的比较,提出配筋砌体剪力墙受剪承载力的计算方法,并编制相应的程序,计算结果与试验进行比较和验证。结果表明:建议的砌体软化剪压强度模型能准确地计算较大剪跨比灌孔配筋砌体剪力墙受剪承载力。
Based on the softened truss theory of concrete and considering the anisotropy property of the masonry block,the biaxial strength failure criterion and a softening coefficient were introduced to develop a softened shear-compression theory.This theory was used to simulate the shear-compression behavior of grouted reinforced masonry block.A corresponding numerical algorism was then proposed.Based on the softened shear compression theory,a computation procedure,for computing the shear capacity and flexure capacity,was proposed and programmed to calculate the shear capacity of reinforced-block-masonry shear walls.This method was then verified with some experimental results.The verification shows that the shear capacity and behavior of the specimens can be satisfactorily obtained by the proposed softened shear-compression method for grouted reinforced masonry block shear walls.
出处
《建筑结构学报》
EI
CAS
CSCD
北大核心
2011年第6期135-140,共6页
Journal of Building Structures
基金
国家自然科学基金项目(50908055)
广东省自然科学基金项目(10451170003004151)
东莞市科技计划项目(200910814049)
东莞理工学院基金项目(ZG091201
ZN100027)
关键词
配筋砌块砌体
剪力墙
软化剪压强度模型
受剪承载力
reinforced block masonry
shear wall
softened shear-compression model
shear capacity
