从局部稳定角度出发,考虑空心薄壁高墩截面尺寸、墩高、初始缺陷等因素,利用ANSYS软件建立实体模型并对其进行有限元数值分析。拟合空心薄壁高墩局部稳定容许宽厚比修正经验公式,并将该经验公式计算结果作为是否需要设置横隔板的依据。
In view of local stability, this paper takes consideration of sectional dimension, pier height,initial defect, etc. of hollow thin - walled high pier, and uses ANSYS software to setup an entity model forfinite element numerical analysis. This paper obtained a modified empirical equation for stably allowedlocal width - thickness ratio of hollow thin - walled high pier. The calculation result is used as basis forwhether a transverse diaphragm is needed.