Assembled concrete full-closed noise barrier

Abstract

The invention discloses an assembled concrete full-closed noise barrier. The assembled concrete full-closed noise barrier comprises noise barrier bases, a plurality of cross beams and cover plates, wherein the cross beams are arranged in a bridge direction at intervals and shaped like a closed circle; the cover plates are laid between the surfaces of the adjacent cross beams and the sections of the cover plates are consistent with the sections of the cross beams in the bridge direction; each cross beam comprises a top cross beam and two side cross beams; one ends of the side cross beams are fixedly connected with the noise barrier, the other ends of the side cross beams are fixedly connected with the top cross beams, and the connected parts of the side cross beams and the top cross beams are concave-convex tooth mouth engaged structures; and the section of each cross beam in a transverse bridge direction is elliptic or circular, and the maximum width of the section of each cross beam in the transverse bridge direction is larger than the width of a bridge deck. Compared with the traditional steel cross beam, the assembled concrete full-closed noise barrier has the advantages that the assembled concrete full-closed noise barrier does not need to maintain and the durability of the assembled concrete full-closed noise barrier is good; the steel usage is reduced and the economic efficiency of the assembled concrete full-closed noise barrier is enhanced; the sound insulation effect is good, the durability is good, the manufacturing cost of the assembled concrete full-closed noise barrier is low and the fireproof performance is greatly enhanced; and through adoption of a convex integral curve form, the aerodynamic performance of the assembled concrete full-closed noise barrier is better than that of the traditional vertical noise barrier.

Description

technical field [0001] The invention designs a railway, highway and municipal sound barrier, in particular an assembled concrete fully enclosed sound barrier. Background technique [0002] Nowadays, there is no fully enclosed sound barrier on the railway, but the fully enclosed sound barrier in the field of highway, municipal and urban rail transit mostly adopts the structural form of "steel structure skeleton + metal sound-absorbing panel + transparent sound-insulating panel". [0003] First, its steel structure skeleton needs regular painting and maintenance, while the service life of metal sound-absorbing panels and transparent sound-insulating panels is only 15 to 20 years, which is seriously inconsistent with the design service life of the main structure of 100 years. [0004] Second, the cost of steel structures and transparent panels is high, and the cost of metal sound-absorbing panels is also high. If the number of maintenance and replacements required during the en...

AI Technical Summary

Problems solved by technology

[0003] First, its steel structure skeleton needs regular painting and maintenance, while the service life of metal sound-absorbing panels and transparent sound-insulating panels is only 15 to 20 years, which is seriously inconsistent with the design service life of the main structure of 100 years

[0004] Second, the cost of steel structures and transparent panels is high, and the cost of metal sound-absorbing panels is also high. If the number of maintenance and replacements required during the entire 100-year service life is considered, the cost will be even higher

[0005] Third, the noise reduction effect of the existing fully enclosed sound barrier is not ideal due to the unsatisfactory sound insulation effect of its own materials and the excessive and large gaps in the panels.

[0006] Fourth, the fire resistance of transparent sound insulation panels is poor and flammable, and cases of fire and combustion of sound barriers often occur, causing major economic losses

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