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A platform for research: civil engineering, architecture and urbanism
Construction device and construction method for supporting-free reverse jacking shape control of large-span steel box girder
The invention discloses a construction device and a construction method for supporting-free reverse jacking shape control of a large-span steel box girder, and relates to the field of municipal bridge construction.The construction device for supporting-free reverse jacking shape control of the large-span steel box girder comprises tensioning tools and a jacking tool, the tensioning tools are arranged on the two sides of the bottom of the steel box girder and provided with steel cables, and the jacking tool is arranged on the bottom of the steel box girder; and the jacking tool is vertically arranged between the steel cable and the steel box girder. The steel cables are tensioned through the tensioning tool, and the steel box girder is reversely jacked in combination with the jacking tool, so that support-free reverse jacking in a simple support state is achieved, midspan deformation is reduced, and construction efficiency and safety are improved. A construction method of the construction device for supporting-free reverse jacking shape control of the large-span steel box girder comprises the steps of tool arrangement, tensioning in advance, hook loosening and unloading, continuous installation, gradual unloading, overall dismantling and the like, the jacking and tensioning tool is conveniently and efficiently dismantled through the pulley tool, and the time and labor cost is reduced.
本申请公开了一种大跨度钢箱梁免支撑反顶控形用施工装置及施工方法，涉及市政桥梁建造的领域，一种大跨度钢箱梁免支撑反顶控形用施工装置包括张拉工装和顶撑工装，张拉工装设置于钢箱梁底部两侧，配备钢索，顶撑工装则竖直置于钢索与钢箱梁之间。通过张拉工装张紧钢索，结合顶撑工装对钢箱梁进行反顶，实现简支状态下免支撑反顶减小跨中变形，提升施工效率和安全性。一种大跨度钢箱梁免支撑反顶控形用施工装置的施工方法包括设置工装、提前张拉、松钩卸载、连续安装、逐步卸载及整体拆除等步骤，通过滑轮工装便捷高效地拆除顶撑与张拉工装，降低时间与人力成本。
Construction device and construction method for supporting-free reverse jacking shape control of large-span steel box girder
The invention discloses a construction device and a construction method for supporting-free reverse jacking shape control of a large-span steel box girder, and relates to the field of municipal bridge construction.The construction device for supporting-free reverse jacking shape control of the large-span steel box girder comprises tensioning tools and a jacking tool, the tensioning tools are arranged on the two sides of the bottom of the steel box girder and provided with steel cables, and the jacking tool is arranged on the bottom of the steel box girder; and the jacking tool is vertically arranged between the steel cable and the steel box girder. The steel cables are tensioned through the tensioning tool, and the steel box girder is reversely jacked in combination with the jacking tool, so that support-free reverse jacking in a simple support state is achieved, midspan deformation is reduced, and construction efficiency and safety are improved. A construction method of the construction device for supporting-free reverse jacking shape control of the large-span steel box girder comprises the steps of tool arrangement, tensioning in advance, hook loosening and unloading, continuous installation, gradual unloading, overall dismantling and the like, the jacking and tensioning tool is conveniently and efficiently dismantled through the pulley tool, and the time and labor cost is reduced.
本申请公开了一种大跨度钢箱梁免支撑反顶控形用施工装置及施工方法，涉及市政桥梁建造的领域，一种大跨度钢箱梁免支撑反顶控形用施工装置包括张拉工装和顶撑工装，张拉工装设置于钢箱梁底部两侧，配备钢索，顶撑工装则竖直置于钢索与钢箱梁之间。通过张拉工装张紧钢索，结合顶撑工装对钢箱梁进行反顶，实现简支状态下免支撑反顶减小跨中变形，提升施工效率和安全性。一种大跨度钢箱梁免支撑反顶控形用施工装置的施工方法包括设置工装、提前张拉、松钩卸载、连续安装、逐步卸载及整体拆除等步骤，通过滑轮工装便捷高效地拆除顶撑与张拉工装，降低时间与人力成本。
Construction device and construction method for supporting-free reverse jacking shape control of large-span steel box girder
一种大跨度钢箱梁免支撑反顶控形用施工装置及施工方法
ZHOU JIANPENG (author) / YANG ZHENZHOU (author) / WU XIAOFENG (author) / LI JIE (author) / WU YI (author) / JIA BAORONG (author) / WANG ZHEHONG (author) / ZHENG XIANGJIE (author) / WANG XUAN (author) / HE JIN (author)
2024-09-10
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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