摘要
在桥梁结构分析中,有限元建模的过程和施工方法的选择紧密相关。即使针对相同的施工方法,模型的用途也导致建模过程的不同。大节段膺架法施工的预应力混凝土连续梁桥,在Midas模型中,使用"弹性连接"的"仅受压"类型来模拟膺架。结合线形监控的要求,如何模拟膺架前移成了建模的关键。
In the analysis of bridge structure,the process of finite element modeling is closely related to the selection of the construction method. Even for the same construction method,the use of model also leads to different modeling processes. In the Midas model of large segment scaffolding construction method for prestressed concrete continuous beam bridge,using＂only compression unit＂of the elastic connection type to simulate the scaffolding. With the requirements of linear monitoring,the key of modeling is how to simulate the forward displacement of scaffolding.
出处
《青海交通科技》
2016年第2期64-67,共4页
Qinghai Transportation Science and Technology
关键词
变截面连续梁桥
箱型梁桥
大节段膺架法
有限元分析
弹性连接
variable cross section continuous beam bridge
box beam bridge
large segment scaffolding method
finite element analysis
elastic connection
