摘要
提出了在桥梁结构分析软件中实现顶推施工计算的方法。即采用支座后移的思路解决了有限元软件处理结构前移的问题;通过失去支撑的时候消除支反力,获得支撑时消除变形的方法,巧妙地模拟了顶推结构在顶进时的受力行为。举出实例验证了上述算法的正确性与可行性。
This paper proposed a new approach to simulate incremental launching construction in bridge-analysis soft-ware. In this approach, instead of moving the structure forward, we moved the bearings backward and when support was moved away, reaction force was eliminated; when support was obtained, deformation was eliminated. An example was presented to verify the approach.
出处
《高速铁路技术》
2010年第5期6-8,共3页
High Speed Railway Technology
关键词
顶推施工
桥梁结构分析软件
荷载分类
incremental launching construction
bridge-analysis software
load categorisation
