上海市中环高架病害支座顶升更换施工技术
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(上海先为土木工程有限公司, 上海市 200000)

作者简介:

蒋岩峰(1978—), 男, 本科, 高级工程师, 研究方向为桥梁整体同步顶升及建筑物整体平移。

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中图分类号:

U445

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Jacking Replacement Construction Technology of Damaged Support in Shanghai Middle Ring Elevated Bridge
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    摘要:

    摘要:经过现场实地勘查发现,上海中环高架桥梁支座出现了各式各样的病害问题,如果任意放任桥梁支座病害进一步发展,可能会影响到车辆安全通行。为了解决桥梁结构的安全隐患问题,提出了利用500T三连杆超薄千斤顶单墩顶升技术快速更换病害支座,此法更能适应中环高架上垫石至墩顶净空低、墩顶千斤顶布置面狭小,顶升力需求大等特点,且可以有效节约成本,对原桥结构损伤,乃至交通组织影响降到最低。

    Abstract:

    After on-the-spot survey, it is found that various diseases appear in the supports of Shanghai Middle Ring Elevated Bridge. The diseases of bridge support if allowed to develop further may affect the safe traffic of vehicles. In order to solve the hidden safety hazards of bridge structure, the 500-t three-link ultra-thin jack single-pier jacking technique is used quickly to replace the damaged supports. This method can more adapt to the characteristics of low clearance from the cushion to pier top, narrow layout area of jack at pier top and large jacking force demand on the Middle Ring Elevated Bridge. And this method can effectively save the cost, and minimize the damage of the original bridge structure, and even the influence on traffic organization.

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历史
  • 收稿日期:2021-06-23
  • 最后修改日期:2021-07-19
  • 录用日期:2021-07-19
  • 在线发布日期: 2022-03-07
  • 出版日期: 2021-03-15
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