[1]江万红,姚力,庞玲.明桥面钢桁梁桥上无缝线路空间有限元分析方法[J].高速铁路技术,2012,3(06):5-9.
　JIANG Wan-hong,YAO Li,PANG Ling.Method of Space Finite Element Analysis on the Continuously-welded Rail on Steel Truss Bridge with Open Deck[J].HIGH SPEED RAILWAY TECHNOLOGY,2012,3(06):5-9.
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明桥面钢桁梁桥上无缝线路空间有限元分析方法()
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《高速铁路技术》[ISSN:1674-8247/CN:51-1730/U]

卷:
3卷
期数:
2012年06期
页码:
5-9
栏目:
理论探索
出版日期:
2012-12-28

文章信息/Info

Title:
Method of Space Finite Element Analysis on the Continuously-welded Rail on Steel Truss Bridge with Open Deck
文章编号:
1674—8247(2012)06—0005-05
作者:
江万红;  姚力;  庞玲
中铁二院工程集团有限责任公司土木建筑设计研究一院, 成都 610031
Author(s):
JIANG Wan-hong;  YAO Li;  PANG Ling
Fisrst Civil Construction Design & Research Znstitute, China Railway Eryuan Engineering Group Co., Ltd., Chengdu 610031, China
关键词:
钢桁梁桥|桥上无缝线路|纵向附加力|空间有限元
Keywords:
steel truss bridge|continuously-welded rail on bridge|additional longitudinal force|spatial finite element
分类号:
U488.21+1
文献标志码:
A
摘要:
明桥面钢桁梁具有较小的二期恒载,在我国铁路新线建设、既有线改造升级以及城市轨道交通中依然广泛存在。文章摒弃常规的桥上无缝线路分析方法,建立空间有限元分析模型,分析明桥面钢桁梁桥上无缝线路纵向力,对优化桥梁与轨道结构的系统设计具有重要参考意义。根据钢桁梁实际构造,建立一种以轨道、桥梁、支座、墩台、基础为整体结构的纵向附加力计算空间模型,计算了某引桥为混凝土桥跨、主跨为简支钢桁梁桥的纵向附加力。同时,通过对比分析研究了制动架设置以及纵梁断开对桥上无缝线路纵向附加力的影响。
Abstract:
The steel truss bridge with open deck, with less dead load, is still widespread in China's new railway lines, upgrading of the existing lines and urban rail transit. In the paper, conventional method is abandoned and space finite element model is established to analyze CWR longitudinal force on the open deck of steel truss bridge, which has reference significance for optimizing the system design of bridge and track structures. On the basis of the real structure of steel truss bridge, a spatial finite element model of additional longitudinal force's calculation is established with track, beam, support, pier & abutment, foundation as an integrated system. The additional longitudinal force of one bridge is calculated, whose approach is concrete span while main span is simply-supported steel truss. Meanwhile, the influence on the additional longitudinal force of CWR from braking bracket setting and longitudinal beam disconnecting is studied through contrast and analysis.

备注/Memo

备注/Memo:
作者简介:江万红(1982-),男,工程师。引文格式:江万红, 姚力, 庞玲. 明桥面钢桁梁桥上无缝线路空间有限元分析方法[J]. 高速铁路技术,2012,3(6):5-9.JIANG Wan-hong, YAO Li, PANG Ling. Method of Space Finite Element Analysis on the Continuously-welded Rail on Steel Truss Bridge with Open Deck[J]. HIGH SPEED RAILWAY TECHNOLOGY, 2012, 3(6):5-9.
更新日期/Last Update: 2012-12-28