【摘要】 砌体结构的有限元分析方法一直面临着复杂性与精确性两大对立矛盾问题。基于等效框架原理,为避免对砌体结构进行简化分析时造成的刚度差异变化,采用分别考虑墙片单一弯曲变形调整系数α和单一剪切变形调整系数β来对结构的刚度进行调整,并从理论推导与数值模拟两方面进行验证。结果表明:引入的调整系数能够更加准确合理地对砌体结构进行非线性数值分析,当墙片高宽比小于1时,采用剪切变形调整系数的精确性优于弯曲变形调整系数。更多还原

【Abstract】 The finite element analysis of masonry structures has always been complex and difficult to ensure its accuracy. To avoid the difference of the stiffness by using the equivalent framework to simplify and analyse the masonry,the single bending deformation adjustment factor α and single shear deformation adjustment factor β were used to adjust the stiffness of the structure,which was verified from theoretical analysis and simulation,showing that the introduction of the adjustment factors was accurate and reasonable to do the nonlinear numerical analysis of the masonry. The result also showed that using shear deformation adjustment factor was superior to bending adjustment factor in precision of simulating.更多还原