重型机械载荷下建筑墙体混凝土立柱侧向稳定性建模分析

Modeling and analysis of lateral stability of building wall concrete columns under heavy mechanical load

为精确分析建筑墙体混凝土立柱侧向稳定性,提出了一种重型机械载荷下建筑墙体混凝土立柱侧向稳定性建模分析方法。首先,采用基于非线性屈曲的有限元分析方法,对立柱未破坏前侧向稳定性进行初步分析。其次,建立混凝土立柱侧向动力响应模型和破坏函数,分别计算重型机械载荷下建筑墙体混凝土立柱侧向发生弯曲形变和直剪形变的位移,并依据立柱侧向位移变化情况,分析重型机械载荷下建筑墙体混凝土立柱侧向稳定性。最后,在MATLAB仿真环境中测试某建筑施工墙体混凝土立柱在重型机械载荷下的稳定性变化情况。实验结果表明,文中所提方法可准确分析混凝土立柱在不同重型机械载荷下的侧向位移变化情况,确保建筑墙体的安全稳固。

Aiming at accurately analyzing the lateral stability of concrete columns in building walls, it proposes a modeling and analysis method of lateral stability of concrete column of building wall under heavy mechanical load. Based on the finite element method and non-linear buckling, it preliminarily analyse the lateral stability of the column before failure, builds the lateral dynamic response model and failure function of concrete columns, and simulates the lateral bending and direct shear displacements of concrete columns of building walls under heavy mechanical loads. According to the lateral displacement changes of columns, it analyzes the lateral stability of concrete columns of building walls under heavy mechanical loads. Finally, it verifies the analysis with the experiment, tests the stability of the concrete column of a building wall under heavy mechanical load in the MATLAB simulation environment. The experimental results show that the proposed method can accurately analyze the lateral displacement of concrete columns under different heavy mechanical loads and ensure the safety and stability of the building wall.