摘要
以某工程为背景,以通用有限元结构分析与设计软件Midas-gen为计算工具,建立高位水塔的仿真模型并进行了分析和研究。研究结果表明:1屈曲分析得到的临界荷载同理论计算值有一定差别,主要原因在于初始缺陷的存在;2加劲肋可有效提高筒壁式水塔整体屈曲的临界荷载;3三立柱支架式水塔的受力性能满足使用及抗震要求,且造型美观;4水塔中的水有减震作用;5通过设置改善地震中水塔中心分布的装置可以减轻重力的P-Δ效应。
Based on the background of a project, by using a general finite element structural analysis and design software Midas-gen as a calculation tool, simulation model of a high tower is analyzed and studied. The research results show that:(1 The critical load of buckling analysis is different from the theoretical values, and the main reason is that the initial defects; (2) Stiffeners can effectively improve the overall buckling critical load of the cylinder wall tower; (3)Three column scaffolding tower stress performance satisfy the requirements for and seismic, and beautiful appearance ; (4)The water in the water tower vibrates ; (5)By setting the improved device for water tower center distribution of the earthquake can reduce the effect of gravity p-△ effect.
出处
《结构工程师》
北大核心
2016年第2期15-21,共7页
Structural Engineers
关键词
水塔
屈曲分析
加劲肋
减震
tower, buckling analysis, stiffening rib, shock absorption