西安电视塔改造项目结构有限元分析

Finite Element Analysis of Structure of Reconstructed Xi'an TV Tower

西安电视塔的装修改造,要求在塔楼、塔座增设部分钢梁、钢柱,而工程结构由于使用不当或任意改建引起的事故经常发生。为了保证结构的安全,为可靠性鉴定提供参考依据,并指导改造设计的实施,依据现行设计规范,采用多质点悬臂梁体系,用数值方法对西安电视塔主体结构进行了静力响应分析、反应谱分析,并考虑了二阶效应对结构的影响,得到内力结果。当考虑日照作用分析时,采用三维实体单元模型,计算温度变形,并考虑二阶效应对结构的影响。

When reconstructing Xi＇ an TV tower, steel beams and columns will be added at the top and base of the tower. However, accidents Would frequently occur due to irrational use or arbitrarily reconstruction of those structures. According to current design codes, finite element analysis of Xi＇an TV tower structure is presented to ensure the security of the structure, to provide theoretical criteria for reliability assessment and to help the design of TV tower. It aims at providing the real effect of action by static, seismic, temperature and secondary effect analyses.