A kind of slope road steel box girder beam transporting vehicle and beam transporting method

Abstract

The invention discloses a slope ramp steel box beam conveying vehicle and method. The beam conveying vehicle comprises two parallel brackets which are in parallel connection through a truss. Each bracket comprises an upper chord and a lower chord, wherein the upper chord and the lower chord form an acute included angle and are connected through a plurality of stand columns and oblique supporting rods in a welded mode; and a plurality of shoulder pole beams are welded between the tops of the upper chords, and rollers are arranged at the bottoms of the lower chords. During beam conveying, a rail foundation platform is constructed on and guide rails are laid on a slope between a shore and a steel box beam installation lifting point, the beam conveying vehicle is placed on the rails, steel box beams are lifted and placed on the beam conveying vehicle from a beam conveying ship, and a winch is used for hauling the beam conveying vehicle to the position below the steel box beam installation lifting point.

Description

technical field [0001] The invention belongs to the technical field of bridge construction, and relates to the problem of transporting a steel box girder in an onshore slope area near water, in particular to a device and a transportation method for transporting a large steel box girder from an onshore slope section to a steel box girder installation and lifting position. Background technique [0002] Steel box girders of cable-stayed bridges are bulky and heavy, and are generally transported by water. When the steel box girder needs to be transferred from the water to the land, the conventional construction method is: set up the beam transport bracket on the shore, the beam transport ship transports the steel box girder to the vicinity of the beam transport bracket, and uses a large floating crane to hoist the steel box girder to On the beam transport support, the steel box girder is slid to the designated position through the transport beam support. [0003] If the water l...

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Problems solved by technology

[0003] If the water level in the river section of the bridge is fluctuating greatly, and the land area near the water has a certain slope, the beam transporting support method is used for construction, and the support must be placed within the range of the lowest water level floating crane. High, long length, resulting in poor stability of the bracket, and increased cost

In addition, if the cover layer in the area where the support is erected is shallow and the inclination angle of the rock layer below the cover layer is relatively large, when the support is erected at a high water level, it is necessary to carry out the construction of the support foundation in the water, and the expansion of the foundation cannot be used, and the vibration of the support steel pipe column is difficult; The technology of drilling piles is not only high in construction cost, but also takes a long time

Therefore, in waters with large amplitude changes and shallow overburden layers, the conventional beam transport and support method is used for beam transport construction, which has high cost, poor stability and long construction period.

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