Urban rail transit bond beam and construction method thereof

Abstract

The invention discloses an urban rail transit bond beam and a construction method thereof and belongs to the technical field of urban rail transit. The urban rail transit bond beam comprises two concrete edge longitudinal beams, two concrete cross beams, a steel longitudinal beam, a plurality of steel cross beams, and a concrete bridge deck slab; the two concrete cross beams are arranged at the two ends of the two concrete edge longitudinal beams respectively, and the two ends of the steel longitudinal beam are connected with the two concrete cross beams respectively; each steel cross beam comprises a first cross beam and a second cross beam, the two sides of the first transverse beam and the two sides of the second transverse beam are respectively connected with the steel longitudinal beam and the concrete edge longitudinal beams, and the first transverse beam, the second transverse beam and the steel longitudinal beam form a supporting surface; and the concrete bridge deck slab is arranged on the supporting surface formed by the first transverse beam, the second transverse beam and the steel longitudinal beam. According to the urban rail transit bond beam provided by the invention, the transverse stress of the beam body is improved, the weight of the beam body component is reduced, and the installation efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of urban rail transit, in particular to an urban rail transit combined beam and a construction method thereof. Background technique [0002] At present, the upper structure of rail transit viaducts generally adopts large box girders, small box girders or U-shaped girders. The common box girder has a large overall height, heavy girder body, low space utilization rate, and heavy lifting overall. The U-shaped beam solves the above problems to a certain extent, but the U-shaped beam is an open thin-walled section, which has poor lateral force and the bottom plate is easy to crack, so it cannot adapt to widening and crossing positions, and its span is limited. Contents of the invention [0003] In view of the above-mentioned defects in the prior art, the present invention provides an urban rail transit combined beam to improve the lateral force on the beam body, reduce the weight of the beam body components, a...

AI Technical Summary

Problems solved by technology

The common box girder has a large overall height, heavy girder body, low space utilization rate, and heavy overall hoisting

The U-shaped beam solves the above problems to a certain extent, but the U-shaped beam is an open and thin-walled cross-section, the lateral force is poor, and the bottom plate is easy to crack, so it cannot adapt to widening and crossing lines, etc., and the span is limited

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