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A platform for research: civil engineering, architecture and urbanism
Rod lifting type structure of large-span simply-supported steel truss bridge and construction method
The invention relates to the technical field of bridge construction engineering, in particular to a lifting rod type structure of a large-span simply-supported steel truss bridge and a construction method. The device comprises a working pier and a lifting rod type structure arranged on the working pier through a jack, truss pedestals are arranged on the two sides of the upper portion of the working pier, and an upper chord is fixed to the truss pedestals through a fixing plate I; the lower chord member is lifted to the same height as the truss pedestal through the jack, and the inclined rod is deflected from a free state to an inclined state; the lower chord member is fixed on the truss pedestal through a fixing plate II, and the inclined rod is fixed on the lower chord member through a fixing plate III. The lower chord member is lifted through the jack, so that the inclined rod is gradually deflected from a free state to an inclined state; a triangular structure is formed among the upper chord, the lower chord and the inclined rods, so that the rigidity of the whole structure is improved; each part is independently prefabricated, so that the construction efficiency is improved.
本发明涉及桥梁施工工程技术领域，具体涉及一种大跨度简支钢桁架桥的升杆式结构及施工方法。本发明包括工作墩，以及通过千斤顶设置于工作墩上的升杆式结构，工作墩上方两侧设置有桁架台座，上弦杆通过固定板Ⅰ固定于桁架台座上；下弦杆通过千斤顶升高到与桁架台座同一高度，斜杆由自由状态偏转为倾斜状态；下弦杆通过固定板Ⅱ固定于桁架台座上，斜杆通过固定板Ⅲ固定于下弦杆上。本发明通过千斤顶抬升下弦杆，使斜杆从自由状态逐渐偏转为倾斜状态；上弦杆、下弦杆和斜杆之间形成的三角形结构，提高整体结构的刚度；各个部分独立预制，提高施工效率。
Rod lifting type structure of large-span simply-supported steel truss bridge and construction method
The invention relates to the technical field of bridge construction engineering, in particular to a lifting rod type structure of a large-span simply-supported steel truss bridge and a construction method. The device comprises a working pier and a lifting rod type structure arranged on the working pier through a jack, truss pedestals are arranged on the two sides of the upper portion of the working pier, and an upper chord is fixed to the truss pedestals through a fixing plate I; the lower chord member is lifted to the same height as the truss pedestal through the jack, and the inclined rod is deflected from a free state to an inclined state; the lower chord member is fixed on the truss pedestal through a fixing plate II, and the inclined rod is fixed on the lower chord member through a fixing plate III. The lower chord member is lifted through the jack, so that the inclined rod is gradually deflected from a free state to an inclined state; a triangular structure is formed among the upper chord, the lower chord and the inclined rods, so that the rigidity of the whole structure is improved; each part is independently prefabricated, so that the construction efficiency is improved.
本发明涉及桥梁施工工程技术领域，具体涉及一种大跨度简支钢桁架桥的升杆式结构及施工方法。本发明包括工作墩，以及通过千斤顶设置于工作墩上的升杆式结构，工作墩上方两侧设置有桁架台座，上弦杆通过固定板Ⅰ固定于桁架台座上；下弦杆通过千斤顶升高到与桁架台座同一高度，斜杆由自由状态偏转为倾斜状态；下弦杆通过固定板Ⅱ固定于桁架台座上，斜杆通过固定板Ⅲ固定于下弦杆上。本发明通过千斤顶抬升下弦杆，使斜杆从自由状态逐渐偏转为倾斜状态；上弦杆、下弦杆和斜杆之间形成的三角形结构，提高整体结构的刚度；各个部分独立预制，提高施工效率。
Rod lifting type structure of large-span simply-supported steel truss bridge and construction method
大跨度简支钢桁架桥的升杆式结构及施工方法
ZHU JINGWEI (author) / LI XING (author) / ZHAN LITAO (author) / CHEN LULU (author) / WANG HANCHEN (author) / WANG MING (author) / HOU YU (author) / XIA GUANGZHOU (author) / HAN YE (author) / LIU XIANGWEI (author)
2024-11-08
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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