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Construction method for fixing cantilever boundary beam of steel box girder
The invention relates to a construction method for fixing a cantilever boundary beam of a steel box girder, which comprises the following steps of: after a middle beam section is stably supported and the boundary beam section is lifted to a preset position and is kept balanced, respectively erecting two ends of a first connecting plate on top plates of the boundary beam section and the middle beam section; the vertical second connecting holes in the two ends of the first connecting plate can be aligned with the vertical first connecting holes in the top plates of the edge beam sections and the middle beam sections respectively, and then the first connecting pieces penetrate through the corresponding first connecting holes and the second connecting holes for connection; the edge beam section is safely and stably overhung on the stably supported middle beam section through horizontal overhanging of the first connecting plate and vertical tension of the first connecting piece, so that the edge beam section can be stably fixed, and a concrete foundation and a steel pipe support do not need to be constructed below the edge beam section. And compared with horse plate connection, the consumed time can be greatly shortened, the cost is lower, and the method can be suitable for hoisting construction of the steel box girder cantilever boundary beam within limited time.
本发明涉及一种固定钢箱梁悬挑边梁的施工方法，在中梁节段支撑稳定，且边梁节段起吊至预设位置并保持平衡后，通过第一连接板两端分别搭设在边梁节段和中梁节段的顶板，使得第一连接板两端的竖向的第二连接孔能够与边梁节段和中梁节段的顶板的竖向第一连接孔分别对齐设置，再通过第一连接件穿过对应的第一连接孔和第二连接孔进行连接，通过第一连接板的水平悬挑以及第一连接件的竖向拉力将边梁节段安全稳定的悬挑在被稳定支撑的中梁节段上，使得边梁节段能够被稳定固定，无需在边梁节段下方施工混凝土的基础和钢管支撑。且相比于马板连接，其耗时能够大大缩短，成本更低，能够适用于有限时间内的钢箱梁悬挑边梁的吊装施工。
Construction method for fixing cantilever boundary beam of steel box girder
The invention relates to a construction method for fixing a cantilever boundary beam of a steel box girder, which comprises the following steps of: after a middle beam section is stably supported and the boundary beam section is lifted to a preset position and is kept balanced, respectively erecting two ends of a first connecting plate on top plates of the boundary beam section and the middle beam section; the vertical second connecting holes in the two ends of the first connecting plate can be aligned with the vertical first connecting holes in the top plates of the edge beam sections and the middle beam sections respectively, and then the first connecting pieces penetrate through the corresponding first connecting holes and the second connecting holes for connection; the edge beam section is safely and stably overhung on the stably supported middle beam section through horizontal overhanging of the first connecting plate and vertical tension of the first connecting piece, so that the edge beam section can be stably fixed, and a concrete foundation and a steel pipe support do not need to be constructed below the edge beam section. And compared with horse plate connection, the consumed time can be greatly shortened, the cost is lower, and the method can be suitable for hoisting construction of the steel box girder cantilever boundary beam within limited time.
本发明涉及一种固定钢箱梁悬挑边梁的施工方法，在中梁节段支撑稳定，且边梁节段起吊至预设位置并保持平衡后，通过第一连接板两端分别搭设在边梁节段和中梁节段的顶板，使得第一连接板两端的竖向的第二连接孔能够与边梁节段和中梁节段的顶板的竖向第一连接孔分别对齐设置，再通过第一连接件穿过对应的第一连接孔和第二连接孔进行连接，通过第一连接板的水平悬挑以及第一连接件的竖向拉力将边梁节段安全稳定的悬挑在被稳定支撑的中梁节段上，使得边梁节段能够被稳定固定，无需在边梁节段下方施工混凝土的基础和钢管支撑。且相比于马板连接，其耗时能够大大缩短，成本更低，能够适用于有限时间内的钢箱梁悬挑边梁的吊装施工。
Construction method for fixing cantilever boundary beam of steel box girder
一种固定钢箱梁悬挑边梁的施工方法
LEI HAOYU (author) / ZHAO WEI (author) / ZHU PENGYU (author) / ZONG WEIJUN (author) / YU YUXIA (author) / FU WEI (author)
2023-05-09
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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