A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Heavy-tonnage high-precision steel box girder hoisting construction method
The invention discloses a heavy-tonnage high-precision steel box girder hoisting construction method which comprises the following steps: excavating a foundation pit, and replacing and filling the foundation; binding buttress foundation steel bars in the foundation pit, installing temporary buttress steel pipe embedded parts, and pouring temporary buttress foundation concrete; after the concrete strength meets the requirement, welding the temporary buttress steel pipes to the embedded parts, and welding diagonal bracings between the steel pipes; welding top steel plates to the tops of the steel pipes; welding double-spliced I-shaped steel on the steel plate; welding adjusting piers and steel box girder limiting steel plates to the tops of the I-shaped steel; welding a pushing steel plate to the top face of the steel box girder; hoisting a large-section steel box girder, installing a jack on the pushing steel plate on the hoisted girder section, pushing the pushing steel plate on the large-section steel box girder which is being hoisted through the jack so as to drive the large-section steel box girder to move, and adjusting the longitudinal position of the large-section steel box girder; and vertically dropping and clamping the large-section steel box girder between the limiting steel plates on the left side and the right side.
本发明公开了一种重吨位高精度钢箱梁吊装施工方法，包括以下步骤：开挖基坑，并进行基础换填。再基坑内绑扎支墩基础钢筋，安装临时支墩钢管预埋件，浇筑临时支墩基础混凝土。待混凝土强度符合要求后，将临时支墩钢管焊接至预埋件上，并在钢管之间焊接剪刀撑。在钢管顶部焊接顶部钢板。在钢板上焊接双拼工字钢。在工字钢顶部焊接调节墩以及钢箱梁限位钢板。将顶推钢板焊接至钢箱梁顶面。吊装大节段钢箱梁，通过在已吊装完成的梁段上的顶推钢板上安装千斤顶，进而通过千斤顶推动正在吊装的大节段钢箱梁上的顶推钢板从而带动大节段钢箱梁移动，调整大节段钢箱梁纵向位置。垂直下落且使得大节段钢箱梁卡在左右两侧限位钢板之间。
Heavy-tonnage high-precision steel box girder hoisting construction method
The invention discloses a heavy-tonnage high-precision steel box girder hoisting construction method which comprises the following steps: excavating a foundation pit, and replacing and filling the foundation; binding buttress foundation steel bars in the foundation pit, installing temporary buttress steel pipe embedded parts, and pouring temporary buttress foundation concrete; after the concrete strength meets the requirement, welding the temporary buttress steel pipes to the embedded parts, and welding diagonal bracings between the steel pipes; welding top steel plates to the tops of the steel pipes; welding double-spliced I-shaped steel on the steel plate; welding adjusting piers and steel box girder limiting steel plates to the tops of the I-shaped steel; welding a pushing steel plate to the top face of the steel box girder; hoisting a large-section steel box girder, installing a jack on the pushing steel plate on the hoisted girder section, pushing the pushing steel plate on the large-section steel box girder which is being hoisted through the jack so as to drive the large-section steel box girder to move, and adjusting the longitudinal position of the large-section steel box girder; and vertically dropping and clamping the large-section steel box girder between the limiting steel plates on the left side and the right side.
本发明公开了一种重吨位高精度钢箱梁吊装施工方法，包括以下步骤：开挖基坑，并进行基础换填。再基坑内绑扎支墩基础钢筋，安装临时支墩钢管预埋件，浇筑临时支墩基础混凝土。待混凝土强度符合要求后，将临时支墩钢管焊接至预埋件上，并在钢管之间焊接剪刀撑。在钢管顶部焊接顶部钢板。在钢板上焊接双拼工字钢。在工字钢顶部焊接调节墩以及钢箱梁限位钢板。将顶推钢板焊接至钢箱梁顶面。吊装大节段钢箱梁，通过在已吊装完成的梁段上的顶推钢板上安装千斤顶，进而通过千斤顶推动正在吊装的大节段钢箱梁上的顶推钢板从而带动大节段钢箱梁移动，调整大节段钢箱梁纵向位置。垂直下落且使得大节段钢箱梁卡在左右两侧限位钢板之间。
Heavy-tonnage high-precision steel box girder hoisting construction method
一种重吨位高精度钢箱梁吊装施工方法
CHEN TIANYI (author) / ZHANG ZHENYU (author) / WANG LIMEI (author) / WANG HAILONG (author) / ZHANG ZHI (author)
2020-04-17
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
| European Patent Office | 2023