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Rail transit steel-concrete composite beam with sound insulation function

A steel-concrete composite girder and rail transit technology, applied in bridges, bridge parts, bridge construction, etc., can solve the problems of high noise in steel box girder structure and easy cracking of bridge deck, so as to ensure construction quality, improve construction efficiency, and improve The effect of mechanical properties

Pending Publication Date: 2021-06-08
CHINA MAJOR BRIDGE ENERGINEERING
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  • Abstract
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  • Application Information

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Problems solved by technology

[0006] The embodiment of the present application provides a rail transit steel-concrete composite beam with built-in sound insulation function to solve the problems that the bridge deck of the traditional steel-concrete composite beam is easy to crack and the structural noise of the steel box girder is large

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  • Rail transit steel-concrete composite beam with sound insulation function
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  • Rail transit steel-concrete composite beam with sound insulation function

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Embodiment Construction

[0033] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present application.

[0034] see figure 1 and figure 2 As shown, the embodiment of the present application provides a rail transit steel-concrete composite beam with its own sound insulation function, which includes a steel-concrete bridge deck 1, two steel girders 2 and a plurality of cross braces 3, two steel girders 2 Separately arranged on both sides ...

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Abstract

The invention relates to a rail transit steel-concrete composite beam with a sound insulation function, and relates to the technical field of bridge construction; the rail transit steel-concrete composite beam comprises a steel-concrete bridge deck slab, two steel main beams and a plurality of transverse supports; the two steel main beams are arranged on the two sides of the steel-concrete bridge deck slab respectively in the cross bridge direction, and the bottom ends of the steel main beams are connected with the steel-concrete bridge deck slab; and the plurality of transverse supports are arranged at intervals in the longitudinal bridge direction, the two ends of each transverse support are connected to the top ends of the two steel main beams respectively, and the transverse supports, the steel-concrete bridge deck slab and the steel main beams jointly define a sound insulation cavity. According to the steel-concrete composite beam, the mechanical property advantages of the two materials are exerted, the structural bearing capacity and flexural rigidity are enhanced, the problem that a bridge deck slab in a hogging moment area cracks is solved, when a vehicle travels in the sound insulation cavity, propagation of wheel track noise can be effectively isolated, and train operation sound pollution is reduced. And meanwhile, the steel structure can be subjected to factory prefabrication, the construction quality is guaranteed, and the construction efficiency is correspondingly improved.

Description

technical field [0001] The present application relates to the technical field of bridge construction, in particular to a rail transit steel-concrete composite beam with its own sound insulation function. Background technique [0002] At present, most cities in my country have basically achieved full coverage of urban rail transit. Because of its large capacity, high efficiency, fast and convenient and many other advantages, it greatly meets people's travel requirements. my country's rail transit lines mainly adopt relatively mature Concrete girder bridges, but its application is limited due to its small economic span and large late creep. [0003] The steel-concrete composite beam is a structural form that connects the steel beam and the concrete slab through shear connectors to jointly bear the load and bear the force. Compared with the traditional concrete beam, the steel-concrete composite beam has a light weight, spans The advantages of large capacity and short construct...

Claims

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Application Information

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IPC IPC(8): E01D1/00E01D19/00E01D21/00
CPCE01D1/00E01D19/00E01D21/00
Inventor 张强曹春明李伟蔡敦松李苏龚文航桂博
Owner CHINA MAJOR BRIDGE ENERGINEERING
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