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钢槽梁顶推施工过程受力分析

Stress Analysis of Steel Channel Beam Jacking Construction Process

Advance in Civil Engineering / 2022,4(3): 1-12 / 2022-06-14 655 659

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• Authors: 缪钟毅 文定旭
• Information:

  中交武汉港湾工程设计研究院有限公司，武汉

• Keywords:
  Jacking; Bridge; Strength
  顶推; 桥梁; 强度
• Abstract: The construction process for the bridge main girders includes steel girder construction, deck plate construction, wet joint construction, steel girder construction can be cantilever assembly, bracket assembly or jacking construction, which can be reasonably selected according to the construction environment and schedule requirements. For bridges crossing rivers, the construction methods available are limited by the conditions, cantilever assembly and bracket assembly steel girder installation duration is long, the site is difficult to achieve, so the jacking construction is used, first with the tire frame assembly steel girders, continuous jacking site environmental impact is reduced. The force analysis of the structure during the whole process of jacking is carried out, which can be used as a reference for similar projects. 对桥梁主梁的施工工序包括钢梁施工、桥面板施工、湿接缝施工，钢梁施工可采 用悬臂拼装、支架拼装或顶推施工，现场根据施工环境、工期要求等进行合理选择。对跨越河流或既有线路的桥梁，受条件限制可选择的施工方法有限，悬臂拼装及支架拼装钢梁安装持续时间较长，现场难以实现，因而采用顶推施工， 先以胎架拼装钢梁，连续顶推现场环境影响降低。对顶推全过程结构的受力进行了分析，可供类似工程借鉴。
• DOI: https://doi.org/10.35534/ace.0403001
• Cite: 缪钟毅，文定旭．钢槽梁顶推施工过程受力分析［J］．土木工程进展，2022，4（3）：1-12.