摘要
对双曲抛物面索网结构利用非线性有限元方法对找形、常温下结构受载计算及其火灾反应的过程等进行详细的分析研究。利用通用有限元程序ANSYS对两种典型的索网结构进行了抗火研究,通过影响抗火性能的相关参数分析,发现影响此种形式索网抗火性能的主要因素是荷载比与预应力比的大小。该结果可供索网结构抗火设计时参考。
Cable structures with hyperbolic paraboloid shape are analysed in detail for the form finding and structural loading calculation as well as fire reaction at high temperature by FEA method, Fire-resistant behavior of two typic cable nets is investigated by the commercial program of ANSYS.Corresponding parameter analysis is carried out to draw a conclusion that the main factors influencing fire-resistant behavior of hyperbolic paraboloid cable net is load ratio and stress ratio, The results have valuable reference for engineers,
出处
《钢结构》
2005年第5期86-89,共4页
Steel Construction
基金
杰出青年科学基金资助项目(编号:50225825)
关键词
双曲索网结构
抗火性能
极限承载力
建筑结构
弹性模量
hyperbolic paraboloid cable net structural fire response fire-resistant behavior parameter analysis
