Steel truss girder suspension bridge deck slab deviation-rectifying, resetting and pushing construction system and method
A technology of jacking construction and bridge deck, applied in the direction of bridge, bridge maintenance, bridge reinforcement, etc., can solve the problems of high maintenance and construction cost, difficult implementation and low cost, etc.
Inactive Publication Date: 2016-02-03
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology
This construction method is short in push and reset operation time and has high reset accuracy, but it has high requirements for the design of temporary push and reaction support, and needs to build a high-altitude construction work platform, and it is necessary to control the traffic of vehicles during push and reset, resulting in high maintenance and construction costs. , while construction work needs to be closed to traffic
[0005] There are obvious limitations in the above-mentioned construction method of pushing and resetting the deck of the steel truss suspension bridge, and it is difficult to implement in the deep canyon area in the mountainous area. Therefore, it is necessary to research and develop the deflection correction of the deck of the steel truss suspension bridge with less construction difficulty and lower cost Reset jacking construction system and corresponding construction method
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[0029] In order to meet the requirement of rectifying the bridge deck of a steel truss girder suspension bridge under the condition of not restricting traffic, the present invention provides a deflection rectifying and reset jacking construction system and method for the deck of a steel truss suspension bridge. The specific embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0030] Such as figure 1 As shown, the steel truss girder suspension bridge bridge deck deflection correction reset reset push construction system includes a restraint limit device 7 and a reset displacement measurement device 8 .
[0031] Such as figure 2 As shown, the restraining and limiting device 7 includes a lower end plate 10 , an upper end plate 9 and a support slanting rod 11 . The lower end plate 10 is welded to the upper chord 4 of the steel truss beam fixedly connected to the steel truss girder 1 , and the upper end plate 9 is...
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The invention discloses a steel truss girder suspension bridge deck slab deviation-rectifying, resetting and pushing construction system and method. The system comprises a constraining and limiting device and a resetting and displacement measuring device. The restraining and limiting device comprises a lower end plate, an upper end plate and a supporting inclined rod. The lower end plate is welded and connected to a steel truss girder beam upper chord member of a steel truss girder suspension bridge. The upper end plate is welded and connected to a bridge deck slab longitudinal beam of the steel truss girder suspension bridge. The upper end and the lower end of the supporting inclined rod are connected with the upper end plate and the lower end plate respectively. The invention further discloses the construction method for conducting deviation-rectifying, resetting and pushing through the steel truss girder suspension bridge deck slab deviation-rectifying, resetting and pushing construction system. By means of the system and method, in the bridge deck slab deviation-rectifying, resetting and pushing process, the bridge surface operation traffic state does not need to be limited, no pushing counterforce support needs to be arranged, and no adverse effects can be caused to stress of a bridge pier and abutment structure.
Description
technical field [0001] The present invention relates to a construction system and method for correcting and resetting the bridge deck during the operation of a steel truss girder suspension bridge in the field of civil engineering, in particular to a construction system and method for jacking and resetting after the bridge deck has longitudinally shifted . Background technique [0002] Steel truss suspension bridges have become one of the main types of super-long-span bridges in the transportation infrastructure construction in the mountainous areas of central and western my country due to their beautiful appearance, strong spanning ability, and good adaptability to terrain conditions. The deck of the steel truss suspension bridge can be an orthotropic steel deck composed of the deck body and deck longitudinal girders, or a composite deck of steel lattice girder-concrete slab, usually the bridge deck and steel truss The bridge deck and the steel truss girder are separated t...
Claims
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Inventor 许红胜杨墨馨颜东煌潘权
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY