城市独柱墩桥梁抗倾覆加固改造设计探讨
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(南京市城市道路管理中心, 江苏 南京 210018)

作者简介:

杜军(1964—), 男, 学士, 研究员级高级工程师,从事城市桥梁隧道养护管理。

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U445.7 + 2

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Discussion on Design of Anti-overturning Reinforcement and Reconstruction of Urban Single-pier Bridge
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    摘要:

    独柱墩桥梁具有结构轻巧、占地少等优点,被广泛应用在城市立交和高架上。近年来,独柱墩桥梁倾覆事故频繁发生,独柱墩桥梁结构的稳定性问题越来越受到桥梁管理者的重视。结合南京市独柱墩桥梁抗倾覆加固改造的工程实践,首先确定了独柱墩桥梁加固改造原则;然后,对不同桥型进行加固改造方案比选,优化抗倾覆加固设计;最后,对桥梁特征状态1和特征状态2情况下如何进行改造进行了总结。

    Abstract:

    Single-pier bridge has the light structure, less land occupation and other advantages, and is widely used in urban interchanges and viaducts. In recent years, the overturning accidents of single-pier bridges occur frequently. The bridge managers pay more and more attention to the stability problems of single-pier bridge structure. Combined with the engineering practices of the anti-overturning reinforcement and reconstruction of single-pier bridges in Nanjing, the reinforcement and reconstruction principles of single-pier bridge are firstly determined, then the reinforcement and reconstruction schemes of the different bridge types are compared, and the design of anti-overturning reinforcement is optimized, and finally, how to reconstruct the bridges under the conditions of feature state 1 and feature state 2 is summarized.

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历史
  • 收稿日期:2021-03-30
  • 最后修改日期:2021-04-14
  • 录用日期:2021-04-19
  • 在线发布日期: 2022-03-07
  • 出版日期: 2021-03-15
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