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Installation and construction method for mid-span steel box girder of steel-concrete hybrid girder
The invention discloses an installation and construction method for a midspan steel box girder of a steel-concrete hybrid girder. The installation and construction method comprises the following steps that firstly, the steel box girder is manufactured into steel box girder sections in a factory according to design requirements, and the steel box girder sections are transported to a construction site; secondly, the steel box girder sections are spliced on the construction site; thirdly, the corresponding steel box girders are hoisted according to design requirements, and welding operation on the outer portions of the steel box girders is conducted after checking; fourthly, constructors enter the steel box girder subjected to external welding to conduct internal welding operation; fifthly, after welding operation of all the steel box girders is completed, follow-up construction is conducted on the midspan area; according to the construction method, the midspan area steel box girder of the steel-concrete hybrid girder is manufactured in a split mode in the girder width direction, hoisting positioning is conducted through a positioning part on a steel box girder body and an auxiliary positioning tool, and steel-concrete connecting segments and the steel box girder are welded and fixed synchronously while hoisting is conducted. The problems that an existing viaduct midspan area steel box girder is long in construction period, high in construction cost and the like are solved.
本发明公开了一种钢砼混合梁的跨中区钢箱梁的安装施工方法，包括以下步骤：步骤一、先将钢箱梁按设计要求在工厂制作成钢箱梁节段并运输至施工现场；步骤二、在施工现场将钢箱梁节段进行拼装；步骤三、根据设计要求将相应钢箱梁进行吊装，校核后进行钢箱梁外部的焊接作业；步骤四、施工人员进入以外部焊接的钢箱梁内部进行内部焊接作业；步骤五、待所有的钢箱梁焊接作业完成后对跨中区进行后续施工；本施工方法通过将钢砼混合梁的跨中区钢箱梁沿梁宽方向分体制作，再利用钢箱梁本体上的定位部与辅助定位工具进行吊装定位，并在吊装的同时同步进行钢砼连接节段与钢箱梁的焊接固定，解决了现有的高架桥跨中区钢箱梁的施工周期长，施工成本高等问题。
Installation and construction method for mid-span steel box girder of steel-concrete hybrid girder
The invention discloses an installation and construction method for a midspan steel box girder of a steel-concrete hybrid girder. The installation and construction method comprises the following steps that firstly, the steel box girder is manufactured into steel box girder sections in a factory according to design requirements, and the steel box girder sections are transported to a construction site; secondly, the steel box girder sections are spliced on the construction site; thirdly, the corresponding steel box girders are hoisted according to design requirements, and welding operation on the outer portions of the steel box girders is conducted after checking; fourthly, constructors enter the steel box girder subjected to external welding to conduct internal welding operation; fifthly, after welding operation of all the steel box girders is completed, follow-up construction is conducted on the midspan area; according to the construction method, the midspan area steel box girder of the steel-concrete hybrid girder is manufactured in a split mode in the girder width direction, hoisting positioning is conducted through a positioning part on a steel box girder body and an auxiliary positioning tool, and steel-concrete connecting segments and the steel box girder are welded and fixed synchronously while hoisting is conducted. The problems that an existing viaduct midspan area steel box girder is long in construction period, high in construction cost and the like are solved.
本发明公开了一种钢砼混合梁的跨中区钢箱梁的安装施工方法，包括以下步骤：步骤一、先将钢箱梁按设计要求在工厂制作成钢箱梁节段并运输至施工现场；步骤二、在施工现场将钢箱梁节段进行拼装；步骤三、根据设计要求将相应钢箱梁进行吊装，校核后进行钢箱梁外部的焊接作业；步骤四、施工人员进入以外部焊接的钢箱梁内部进行内部焊接作业；步骤五、待所有的钢箱梁焊接作业完成后对跨中区进行后续施工；本施工方法通过将钢砼混合梁的跨中区钢箱梁沿梁宽方向分体制作，再利用钢箱梁本体上的定位部与辅助定位工具进行吊装定位，并在吊装的同时同步进行钢砼连接节段与钢箱梁的焊接固定，解决了现有的高架桥跨中区钢箱梁的施工周期长，施工成本高等问题。
Installation and construction method for mid-span steel box girder of steel-concrete hybrid girder
钢砼混合梁的跨中区钢箱梁的安装施工方法
LI TIANPENG (author) / ZHANG LI (author) / GOU ZHIPEI (author)
2023-01-17
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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