半预制圈梁构造柱砌体结构变形量估计仿真

Estimation and Simulation of Masonry Structure Deformation of Semi-Prefabricated Ring Beam Construction Column

构造柱砌体结构存在无限未知量,导致变形量估计过程中无法有效检测到砌体结构极限承载力、剪切变形占比和相对刚度,提出半预制圈梁构造柱砌体结构变形量估计方法。利用有限元分析法对砌体结构中的混凝土结构、钢筋结构等构件进行砌体结构的相关本构分析;根据分析结果构建半预制圈梁构造柱砌体结构的各向异性弹塑性变形模型,获取半预制圈梁构造柱的动态线性变换量,结合Rankine与Drucker-Prager双结合屈服准则计算变换量,以此完成半预制圈梁构造柱砌体结构变形量估计。测试结果表明,能够有效监测到砌体结构的极限承载力、剪切变形占比以及相对刚度,从而提高砌体结构变形量估计的精准度。

During the construction of column masonry structure, infinite unknowns lead to the inability to effectively detect the ultimate bearing capacity, shear deformation proportion and relative stiffness of masonry structure in the process of deformation estimation. The deformation estimation method of semi-precast ring beam and constructional column masonry structure was proposed in this paper. The finite element analysis method was applied to the constitutive analysis of the concrete structure and reinforced structure in a masonry structure. The obtained analysis results are utilized to construct the anisotropic elastic-plastic deformation model of semi precast ring beam structural column masonry structure, thus obtaining the dynamic linear transformation of semi precast ring beam structural column. Based on Rankine and Drucker Prager double combined yield criterion, the transformation was calculated. At last, the deformation of semi precast ring beam structural column masonry structure was estimated. The results show that the accuracy of the deformation of masonry structure estimated by this method is higher than that of the traditional method because it can effectively monitor the effective measurement of ultimate bearing capacity, the proportion of shear deformation, and relative stiffness.