铁路道岔连续梁柱梁法现浇支架设计和检算
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摘要
道岔连续梁是铁路工程中一种特殊的结构形式,文章以渝怀铁路增建二线舞水湾滩1#特大桥40#～45#墩道岔连续梁为例,结合桥跨结构和地质情况,采用钢管立柱和贝雷梁桁架作为主要受力构件,进行柱梁法现浇支架设计,通过有限元软件MIDAS/civil建立模型,对支撑系统的强度、刚度、稳定性、基础承载力等进行检算,分析了支架结构安全。
Turnout continuous beam is a special structural form in railway engineering. in this paper, taking the construction of #40～#45 pier switch continuous beam of the second line Wushuitan #1 super bridge on Yuhuai Railway as an example, combined with the bridge span structure and geological conditions, the steel pipe column and Berea piece truss are used as the main force members, and the cast-in-place support by column beam method is designed. The model is established by finite element software MIDAS/civil, and the strength, stiffness, stability and foundation bearing capacity of the support system are checked and calculated.The safety of the bracket structure is analyzed.
Turnout continuous beam is a special structural form in railway engineering. in this paper, taking the construction of #40～#45 pier switch continuous beam of the second line Wushuitan #1 super bridge on Yuhuai Railway as an example, combined with the bridge span structure and geological conditions, the steel pipe column and Berea piece truss are used as the main force members, and the cast-in-place support by column beam method is designed. The model is established by finite element software MIDAS/civil, and the strength, stiffness, stability and foundation bearing capacity of the support system are checked and calculated.The safety of the bracket structure is analyzed.
引文
[1]刘学明,刘世忠.钢管柱-贝雷梁支架体系施工工艺及设计检算[J].铁道建筑技术,2016(9):43-46.
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[4]苏伟业.高墩柱道岔梁拼装式钢管柱贝雷梁支架施工技术[J].铁道建筑技术,2017(7):62-65.
[5]邓俊晔,裴智慧.现浇简支梁贝雷梁支撑系统优化设计[J].施工技术,2012,41(12):34-38.
[6]邓应贵.钎探高墩大跨度现浇支架施工技术[J].中国高新技术企业,2015(11):102-104.
[2]杜瑞.钢管贝雷梁支架施工检算及三维有限元分析[J].山西建筑,2014(6):189-191.
[3]李征.大体积道岔连续梁一次浇筑技术.[J].铁道建筑技术,2015(4):119-121.
[4]苏伟业.高墩柱道岔梁拼装式钢管柱贝雷梁支架施工技术[J].铁道建筑技术,2017(7):62-65.
[5]邓俊晔,裴智慧.现浇简支梁贝雷梁支撑系统优化设计[J].施工技术,2012,41(12):34-38.
[6]邓应贵.钎探高墩大跨度现浇支架施工技术[J].中国高新技术企业,2015(11):102-104.