River-crossing steel truss bridge closure method

A steel truss bridge and steel truss technology, which is applied in the field of cross-river steel truss bridge closure, can solve the problems of difficulty in ensuring the construction quality of high-strength bolts, and achieve the effects of high closure precision and simple construction procedures.
CN113136803AActive Publication Date: 2021-07-20CCCC THIRD HIGHWAY ENG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CCCC THIRD HIGHWAY ENG
Publication Date
2021-07-20
Patent Text Reader

Abstract

The invention discloses a river-crossing steel truss bridge closure method, which comprises the following steps of: respectively erecting steel truss main bodies to a closure gap from two bank sides to the center of a river, respectively and movably mounting a first steel truss, a second steel truss and the steel truss main bodies on the respective sides, temporarily arranging a closure steel truss on the second steel truss and enabling the closure steel truss to protrude by a part, adjusting the rotating angle of the first steel truss, connecting the first steel truss with one side of the closure steel truss, adjusting the position of the second steel truss, connecting the second steel truss with the other side of the closure steel truss, and locking the first steel truss, the second steel truss and the steel truss main bodies on the respective sides. The invention further discloses a river-crossing steel truss bridge closure device. The position and displacement of the first steel truss, the second steel truss and the closure steel truss can be adjusted to be matched with the closure opening according to the environmental influence, and the method has the advantages of being simple and rapid in construction procedure and high in closure precision.
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Description

technical field

[0001] The invention relates to the technical field of bridges. More specifically, the present invention relates to a method for closing a river-crossing steel truss bridge. Background technique

[0002] The steel truss bridge is a structural system between the beam and the arch, which is a structure that is integrally combined with the upper beam structure under bending and the lower column under pressure. In the construction of the closing section of the steel truss bridge across the river, due to the mature bolting construction technology and fast construction speed, the bolting method is usually used for the closing of the closing section of the opening. Both the horizontal bridge and the longitudinal bridge direction of the Helongkou are not well matched with the Helong rods, and the construction quality of the high-strength bolts is also difficult to guarantee. Contents of the invention

[0003] It is an object of the present invention to solve at l...

Claims

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