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Method for rapid closure and position adjustment of steel trussed cable-stayed bridge
The invention discloses a method for rapid closure and position adjustment of a steel trussed cable-stayed bridge. The method includes the following steps that firstly, a steel truss on one side is pushed by a distance freely towards one side of a side span through a cantilever, so that a closure opening is 2-3 cm longer than a closure rod, and the closure rod is connected with the steel truss on one side; secondly, a steel truss on the other side is connected with a first steel plate, a long strip-shaped opening is formed in the middle of the first steel plate, a pair of counterforce steel plates are symmetrically arranged on the upper surface, the closure rod is connected with a second steel plate, the second steel plate is installed in the opening in a sliding mode, and a bearing steel plate is arranged on the upper surface of the second steel plate; thirdly, a lifting jack is arranged, a piston rod faces a second side span, and the closure opening is pulled; and fourthly, the first steel plate and the second steel plate are removed, the closure rod and the steel truss on the first side are fixedly connected, and the closure opening is locked. By means of the method for rapid closure and position adjustment of the steel trussed cable-stayed bridge, general closure of the steel trusses carried out rod by rod is adjusted into single-side joint one-time closure, so that the method has the advantages of being good in adaptability, good in application prospects and the like.
Method for rapid closure and position adjustment of steel trussed cable-stayed bridge
The invention discloses a method for rapid closure and position adjustment of a steel trussed cable-stayed bridge. The method includes the following steps that firstly, a steel truss on one side is pushed by a distance freely towards one side of a side span through a cantilever, so that a closure opening is 2-3 cm longer than a closure rod, and the closure rod is connected with the steel truss on one side; secondly, a steel truss on the other side is connected with a first steel plate, a long strip-shaped opening is formed in the middle of the first steel plate, a pair of counterforce steel plates are symmetrically arranged on the upper surface, the closure rod is connected with a second steel plate, the second steel plate is installed in the opening in a sliding mode, and a bearing steel plate is arranged on the upper surface of the second steel plate; thirdly, a lifting jack is arranged, a piston rod faces a second side span, and the closure opening is pulled; and fourthly, the first steel plate and the second steel plate are removed, the closure rod and the steel truss on the first side are fixedly connected, and the closure opening is locked. By means of the method for rapid closure and position adjustment of the steel trussed cable-stayed bridge, general closure of the steel trusses carried out rod by rod is adjusted into single-side joint one-time closure, so that the method has the advantages of being good in adaptability, good in application prospects and the like.
Method for rapid closure and position adjustment of steel trussed cable-stayed bridge
PENG PENG (author) / ZHENG XIANHE (author)
2015-09-23
Patent
Electronic Resource
English
IPC:
E01D
BRIDGES
,
Brücken
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