Joist barrow for railway bridge deck system in steel truss girder and using method of joist barrow

Abstract

The invention discloses a joist barrow for a railway bridge deck system in a steel truss girder and a using method of the joist barrow, and relates to the field of bridge construction, the joist barrow comprises a transfer trolley and a combined steel truss, the combined steel truss is transversely arranged above the transfer trolley, and the top and the bottom of the combined steel truss are provided with a top sliding rail and a bottom sliding rail respectively. Two transverse telescopic devices are arranged at the two ends of the combined steel truss correspondingly and matched with the top sliding rails. Two first vertical telescopic devices are arranged at the bottoms of the two transverse telescopic devices correspondingly. Two second vertical telescopic devices are respectively arranged at the bottom of the combined steel truss. An electric hoist is arranged at the bottom of the combined steel truss, is matched with the bottom sliding rail and is used for transversely sliding along the bottom sliding rail. The joist barrow is used for transporting and hoisting construction materials of a railway bridge deck system in the steel truss girder, has the functions of widening and heightening, reduces the occupation of construction space in the steel truss girder, is not limited by a track in an advancing mode, and improves the flexibility and the safety.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to a steel truss girder inner railway bridge deck system truss car and a method for using the same. Background technique [0002] With the wide application of mechanical equipment in the field of bridge construction, especially the application of various hoisting equipment, the efficiency of bridge construction has been greatly improved. [0003] For the long-span steel truss girder in bridge engineering, such as the steel truss girder of the main bridge of Padma Bridge in Bangladesh, the main truss of the steel truss girder adopts the triangular truss type A without vertical bars, such as figure 1 As shown, two trusses are arranged horizontally, namely the upper chord a1 and the lower chord a2, and the web a3 is between the upper chord a1 and the lower chord a2, and the upper chord a1, the lower chord a2, and the web a3 all adopt box-shaped cross section , the main tru...

AI Technical Summary

Problems solved by technology

[0005] However, due to the limited and irregular operating space inside the steel truss girder, the span, height and travel of the truss car need to be adjusted in real time according to the actual situation

However, the traditional truss trucks are mostly wheel-rail type, the traveling direction is relatively fixed, and its span and height are fixed, which lacks flexibility and cannot meet the requirements of transportation and hoisting inside the steel truss girder

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