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A platform for research: civil engineering, architecture and urbanism
Construction method for synchronously and integrally jacking and replacing bridge support system in highway reconstruction and extension
The invention relates to a construction method for synchronously and integrally jacking and replacing a bridge support system in highway reconstruction and extension. The construction method comprises the following steps that a suspension operation platform is installed below a main beam; limiting profile steel is installed along the side edge of the main beam; a plurality of layers of shaped hoops are hooped on the pier column, and the jacking jack jacks the main beam; a new support cushion stone is poured on the bent cap through a support cushion stone pouring formwork system, and then a new support is placed; and the jacking jack is retracted, and the main beam is placed on the new support. The method has the beneficial effects that the suspension operation platform is arranged on the basis of the main beam, the box type main beam and the T type main beam are fixed by adopting different methods according to the structural form of the main beam through the suspension operation platform, and the engineering applicability is improved; in addition, the suspension operation platform provides a safe and reliable operation space for operators, and meanwhile the problem that a support type operation platform cannot be erected under the bridge or traffic under the bridge is affected is solved.
本发明涉及一种公路改扩建同步整体顶升更换桥梁支座体系的施工方法，包括以下步骤：在主梁下方安装悬吊作业平台；沿主梁侧边安装限位型钢；数层定型化抱箍套箍于墩柱上，顶升千斤顶将主梁顶升；在盖梁上通过支座垫石浇筑支模系统浇筑新的支座垫石，然后放置新支座；回缩顶升千斤顶，将主梁落放至新支座上。本发明的有益效果是：依托主梁设置悬吊作业平台，对箱型主梁和T型主梁分别提出了悬吊作业平台根据主梁结构形式采用不同的方法固定，提升了工程适用性；另外悬吊作业平台为作业人员提供安全可靠的作业空间，同时避免了在桥下无法搭设支架式作业平台或影响桥下交通的问题。
Construction method for synchronously and integrally jacking and replacing bridge support system in highway reconstruction and extension
The invention relates to a construction method for synchronously and integrally jacking and replacing a bridge support system in highway reconstruction and extension. The construction method comprises the following steps that a suspension operation platform is installed below a main beam; limiting profile steel is installed along the side edge of the main beam; a plurality of layers of shaped hoops are hooped on the pier column, and the jacking jack jacks the main beam; a new support cushion stone is poured on the bent cap through a support cushion stone pouring formwork system, and then a new support is placed; and the jacking jack is retracted, and the main beam is placed on the new support. The method has the beneficial effects that the suspension operation platform is arranged on the basis of the main beam, the box type main beam and the T type main beam are fixed by adopting different methods according to the structural form of the main beam through the suspension operation platform, and the engineering applicability is improved; in addition, the suspension operation platform provides a safe and reliable operation space for operators, and meanwhile the problem that a support type operation platform cannot be erected under the bridge or traffic under the bridge is affected is solved.
本发明涉及一种公路改扩建同步整体顶升更换桥梁支座体系的施工方法，包括以下步骤：在主梁下方安装悬吊作业平台；沿主梁侧边安装限位型钢；数层定型化抱箍套箍于墩柱上，顶升千斤顶将主梁顶升；在盖梁上通过支座垫石浇筑支模系统浇筑新的支座垫石，然后放置新支座；回缩顶升千斤顶，将主梁落放至新支座上。本发明的有益效果是：依托主梁设置悬吊作业平台，对箱型主梁和T型主梁分别提出了悬吊作业平台根据主梁结构形式采用不同的方法固定，提升了工程适用性；另外悬吊作业平台为作业人员提供安全可靠的作业空间，同时避免了在桥下无法搭设支架式作业平台或影响桥下交通的问题。
Construction method for synchronously and integrally jacking and replacing bridge support system in highway reconstruction and extension
公路改扩建同步整体顶升更换桥梁支座体系的施工方法
2024-08-16
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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