Whole-width incremental launching construction method for steel structure bridge in narrow space
The invention provides a narrow space steel structure bridge whole-width incremental launching construction method which comprises the following steps that a web in a box girder is reinforced, and stay cables on the box girder are symmetrically dismantled from the two ends of the box girder to the c...
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| creator | ZHANG JUNRU LYU LIN ZHOU JIANGANG TAO JIASHUN LU FENG BAI XIAOYANG YANG CHUHAN WANG YI YAO CHAO ZHU PINGHUA |
| description | The invention provides a narrow space steel structure bridge whole-width incremental launching construction method which comprises the following steps that a web in a box girder is reinforced, and stay cables on the box girder are symmetrically dismantled from the two ends of the box girder to the center of the box girder; the box girder cantilever arm, connected with the box girder, of the stay cable is gradually cut from the two ends to the center, and the cutting position is recorded; the box girder is jacked to a first preset height through the jacking device and the jacking distribution girder; pushing brackets and pushing devices are mounted on the existing abutments and the temporary abutments at the bottoms of the box girders, and the box girders are gradually pushed to the temporary abutments from the existing abutments in a segmented manner through the pushing devices; building construction is conducted on the bottom of the original box girder, and after construction is completed, reset pushing oper |
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the box girder cantilever arm, connected with the box girder, of the stay cable is gradually cut from the two ends to the center, and the cutting position is recorded; the box girder is jacked to a first preset height through the jacking device and the jacking distribution girder; pushing brackets and pushing devices are mounted on the existing abutments and the temporary abutments at the bottoms of the box girders, and the box girders are gradually pushed to the temporary abutments from the existing abutments in a segmented manner through the pushing devices; building construction is conducted on the bottom of the original box girder, and after construction is completed, reset pushing oper</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ASSEMBLY OF BRIDGES CONSTRUCTION OF BRIDGES CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES FIXED CONSTRUCTIONS OR VIADUCTS |
| title | Whole-width incremental launching construction method for steel structure bridge in narrow space |
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