Fiber-reinforced prestressed reinforced concrete sleeper
A reinforced concrete and fiber-reinforced technology, applied in the direction of track, auxiliary forming equipment, supply device, etc., can solve the problems of small force and inability to adapt to the requirements of heavy-duty railways, and achieve low cost, high construction efficiency, and improved durability Effect
Active Publication Date: 2018-09-28
RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI +2
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Problems solved by technology
It adopts hollow setting, although it saves materials, it is still uniformly set, and the force is small, so it cannot meet the requirements of heavy-duty railways
Method used
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[0023] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. However, it should not be understood that the scope of the above subject matter of the present invention is limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.
[0024] like Figure 1-3 As shown, a fiber-reinforced prestressed reinforced concrete sleeper, the sleeper is integrally cast and formed, the sleeper includes: a sleeper body 3 and a rail bearing area 2, the surface of the rail bearing area 2 is a rail clamping seat, the The rail bearing area 2 consists of two pieces, which are respectively located under the steel rails on both sides of the sleeper and above the sleeper body; only fiber reinforced materials are mixed in the rail bearing area 2, and reinforcing ribs 1 are arranged in the sleeper body , the fiber-reinforced materia...
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Abstract
The invention relates to a fiber-reinforced prestressed reinforced concrete sleeper. The sleeper is integrally cast, and the sleeper comprises a sleeper body and two rail bearing areas. Rail clampingconnecting seats are arranged on the surfaces of the rail bearing areas, and the two rail bearing areas are separately located under rails on both sides of the sleeper and above the sleeper body. Fiber reinforced materials are only mixed in the rail bearing areas, and reinforcing ribs are arranged in the sleeper body. The fiber reinforced materials are mainly arranged in main stress areas below rail bearing surfaces. Through the design of mixing the fiber materials in the specific area in the production process of the concrete sleeper, the abrasion resistance and crack resistance of the concrete are improved, and the concrete well adapts to the force condition of the sleeper, so that the service life of the concrete sleeper is prolonged, and the stability of railway operation is improved.
Description
technical field [0001] The invention relates to a railway sleeper, in particular to a reinforced concrete sleeper added with fiber reinforced materials. Background technique [0002] In recent years, heavy-haul railway transportation has developed rapidly around the world. Due to its large capacity, high efficiency and low transportation cost, heavy-haul railway transportation has been widely valued by railways all over the world, and has been recognized internationally as the direction of railway freight development. , not only in some countries with vast territory, rich resources, coal and ore and other bulk cargo transportation volume accounted for a large proportion, such as the United States, Canada, Brazil, Australia, South Africa and other countries to develop heavy-duty railways, run a large number of heavy-duty trains, but also in Europe Heavy-duty trains have also begun to run on passenger-cargo mixed trunk lines. In the development of heavy-haul railways, increas...
Claims
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Patent Timeline
Login to View More IPC IPC(8): E01B3/28E01B3/32E01B3/34
CPCE01B3/28E01B3/32E01B3/34B28B17/0081B28B13/0225B28B1/008B28B1/523E01B3/42E01B2204/10
Inventor 叶阳升尤瑞林范佳刘伟斌杜香刚谭振宇马战国许良善
Owner RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI