Longitudinal dragging and lateral pushing and sliding system for construction of steel truss girder assembly
A technology of steel truss girders and transverse slideways, which is applied in bridge construction, erection/assembly of bridges, bridges, etc., can solve the problems of difficult design and construction of temporary pier foundations, large changes in river bed scour, rapid water flow, etc., and achieve practical The effect of high value, large changes in riverbed scour, and rapid water flow
Active Publication Date: 2016-03-02
NO 1 ENG LIMITED OF CR20G
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Problems solved by technology
In addition, due to the complex engineering geology and hydroclimatic conditions at the bayonet of the Yellow River, the construction process of steel truss girder assembly erection is affected by rapid water flow, large changes in river bed scour, high wind speed, flood season and lingering season. and difficult construction
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[0071] Such as figure 1 A longitudinal dragging and lateral pushing and sliding system for erection of steel truss girders is shown, including a temporary support system, and two roads are arranged on the temporary support system for the assembly and erection of steel truss girders 1 for longitudinal bridge Longitudinal slideway to move, horizontal slideway 8 for the steel truss girder 1 to move in the transverse bridge direction, a traction device for pulling the steel truss girder 1 in the process of moving in the longitudinal bridge direction, and horizontally pushing the steel truss girder 1 to move in the transverse bridge direction A moving thrusting device, the front of the steel truss 1 is provided with a guide beam 2, and the guide beam 2 is arranged in front of the steel truss 1; the front and rear ends of the steel truss 1 are respectively supported on permanent The beam bodies on the first buttress 3 and the second permanent buttress 4 are composed of multiple stee...
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The invention discloses a longitudinal-pulling and transverse-pushing sliding system used for assembly and erection construction of a steel truss girder. The longitudinal-pulling and transverse-pushing sliding system comprises a temporary supporting system, two longitudinal sliding rails, a transverse sliding rail, a drawing device and a transverse pushing device, wherein the two longitudinal sliding rails are evenly distributed on the temporary supporting system and used for longitudinal bridge direction movement of the steel truss girder which is assembled and erected, the transverse sliding rail is used for transverse bridge direction movement of the steel truss girder, the drawing device is used for drawing the steel truss girder in a longitudinal bridge direction movement process, the transverse pushing device is used for horizontally pushing the steel truss girder to move in the transverse bridge direction, and the front portion of the steel truss girder is provided with a guide beam. A plurality of steel truss girder sections are assembled from front to rear to form the steel truss girder. The temporary supporting system comprises a rear temporary support, a front temporary support and an underwater temporary support, wherein the front temporary support is arranged in front of the rear temporary support, and the underwater temporary support is located in a river drainage line and between the rear temporary support and the front temporary support. The longitudinal-pulling and transverse-pushing sliding system is simple in structure, reasonable in design, convenient to construct and good in use effect, an assembly and erection process of the steel truss girder can be conveniently and rapidly completed, and construction difficulty is low.
Description
technical field [0001] The invention belongs to the technical field of steel truss girder erection construction, and in particular relates to a longitudinal dragging and lateral pushing and sliding system for steel truss girder assembly erection construction. Background technique [0002] The second line of the new Yellow River Bridge is located at the junction of Hancheng City, Shaanxi Province and Hejin City, Shanxi Province. The central railway mileage of the bridge is DK78+481, parallel to the existing About 22m downstream of the steel truss girder of the Yellow River Bridge on the Houxi Line Railway. The steel truss girder plane with a small mileage of 12m is located on the R=600m transition curve, the rest is located on the straight line, and the facade is 0% longitudinal slope. Among them, the fourth span uses a 156m-long under-supported steel truss girder to cross the main channel of the Yellow River. The steel truss structure has a self-weight of 13.74t / m and a to...
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IPC IPC(8): E01D21/00
Inventor 杜越李宏强丁大友任高峰何东王建斌尚宗柱王建富欧阳林谭永
Owner NO 1 ENG LIMITED OF CR20G