某跨越结构事故分析

对某跨越结构中出现的工程事故进行了原因分析，提出了解决该工程事故的施工方案。采用采用国际通用结构有限元程序ＳＡＰ９０，对最终的跨越结构处理方案作了详尽的计算，计算模型中，输气管道采用该程序的管道单元模拟，其它构件采用空间梁单元模拟，计算结果表明，该处理方法安全可行，避免了道道运营中的安全隐患。

Accident Analysis on Some Crossover Structure of Pipeline

A reason analysis of accident has been made on some crossover structure. The scenario tc solve the problem is that adopting the SAP90,the finitive element program,calculates the combination loading (wind, water, snow, temperature, and internal pressure loading)of crossover structure of the pipeline,and in the calculating model,the pipe is simulated with pipe unite,other components are simulated with space beam. The result shows that the scenario is effective to solve the problem and avoid the future accident.