考虑施工荷载的烟囱钢内筒优化研究

发布时间：2018-03-04 21:10

本文选题：多管式　切入点：烟囱　出处：《结构工程师》2016年05期 　论文类型：期刊论文

【摘要】：对多管式烟囱钢内筒进行结构优化设计研究时,考虑外筒传来荷载与施工中开洞及吊装的影响是十分必要的。先对烟囱钢内筒开洞加固问题进行有限元分析并提出施工建议,然后按加固后钢内筒进行优化研究,并在优化时同步考虑钢内筒吊装的影响。为高效解决烟囱钢内筒优化设计问题,文章基于有限元分析方法和参数化设计思想,在分析外筒传来的荷载作用下和钢内筒施工时结构变形和应力分布的基础上,结合ANSYS中Design Opt工具开发了相关程序进行优化设计,合理确定截面尺寸。该方法可以避免繁琐的传统手工设计计算与验证,极大提高了设计精度和效率。分析结果可以为今后的类似工程设计提供参考。
[Abstract]:It is necessary to consider the influence of the load coming from the outside tube on the opening and hoisting of the steel inner tube of the multi-pipe chimney in the structural optimization design. Firstly, the finite element analysis is carried out on the reinforcement problem of the steel inner tube of the chimney, and the construction suggestions are put forward. Then the optimization research is carried out according to the strengthened steel inner cylinder, and the influence of steel inner cylinder hoisting is considered simultaneously during the optimization. In order to efficiently solve the optimization design problem of the chimney steel inner cylinder, this paper is based on the finite element analysis method and the parametric design idea. Based on the analysis of the structural deformation and stress distribution during the construction of the steel inner tube under the load from the outer tube, the optimization design is carried out by combining with the Design Opt tool in ANSYS. This method can avoid the complicated calculation and verification of traditional manual design and greatly improve the design precision and efficiency. The analysis results can provide a reference for similar engineering design in the future.
【作者单位】：南京交通职业技术学院建筑工程学院;
【基金】：南京交通职业技术学院科研项目(JY1514)
【分类号】：TU398.9

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