Ribbed prestressed concrete plate type noise barrier unit plate

A concrete and sound barrier technology, applied in construction, noise absorption devices, etc., can solve the problems of PC boards such as poor bending fatigue resistance, heat sealing performance, poor UV resistance, and easy to blur when placed, so as to achieve light density and avoid fatigue Stress, the effect of avoiding cracks

Inactive Publication Date: 2014-02-05
CHINA RAILWAY DESIGN GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The high-strength cement substrate is made of cement, coal ash, and slag, and its strength is poor
The PC board has poor bending fatigue resista

Method used

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  • Ribbed prestressed concrete plate type noise barrier unit plate
  • Ribbed prestressed concrete plate type noise barrier unit plate
  • Ribbed prestressed concrete plate type noise barrier unit plate

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Experimental program
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Embodiment Construction

[0024] The technical solution of the present invention is further described in conjunction with the accompanying drawings. Figure 1 ~ Figure 3 The basic structure of the sound barrier unit plate involved in the present invention is shown. As shown in the figure, the prestressed concrete rib plate type sound barrier unit plate involved in the present invention includes a back plate 1 and a laminated layer 2, and the back plate 1 is made of high-strength concrete. Ribbed concrete thin slab is formed, and the superimposed layer 2 is composed of light volcanic rock sound-absorbing material attached to one side of the back plate 1. The laminated layer 2 and the back plate 1 are poured integrally to form a laminated component.

[0025] The back plate 1 is rectangular, and the upper and lower ends of the long side are provided with end ribs, and the upper and lower ends of the ribs are respectively provided with two prestressed steel wires 5, and the two sides of the short side are ...

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Abstract

The invention discloses a ribbed prestressed concrete plate type noise barrier unit plate. The noise barrier unit plate comprises a back plate and an overlapping layer, wherein the back plate is a ribbed concrete sheet made of high-strength concrete, the overlapping layer is formed by adhering a sound absorption material of light volcanic rock to one side of the back plate, the overlapping layer and the back plate are integrally poured to form an overlapping type component, the back plate is rectangular, end ribs are arranged at upper ends of long edges of the back plate respectively, prestressed wires are arranged in the end ribs at the upper and lower ends respectively, and side end ribs are arranged on two sides of short edges and equipped with constructional steel bars. According to the ribbed prestressed concrete plate type noise barrier unit plate, in the process of bearing aerodynamic force of high-speed railways, the production of fatigue stress and cracks can be avoided, the sound absorption coefficient is very high, the production cost is low, and the unit plate is adapted to the rapid development of high-speed railways.

Description

technical field [0001] The invention relates to railway engineering equipment, in particular to railway sound barrier technology. Background technique [0002] High-speed railway sound barrier technology develops with the development of high-speed railway. One of the cores of sound barrier technology is the research and development of unit panels, which are the basic guarantee for noise control and structural safety. [0003] The noise sources of high-speed railways are complex, including not only wheel-rail noise, but also current collector system noise, aerodynamic noise, and structural noise of viaducts generated by high-speed trains. The acoustic characteristics of high-speed railways are different from ordinary-speed railways. Moreover, when the train is running at high speed, the pulsating air pressure of the surrounding air will form a large pressure and pulsation-absorbing dynamic load on the sound barriers on both sides of the railway. Therefore, the high-speed rai...

Claims

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Application Information

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IPC IPC(8): E01F8/00
Inventor 周继超薛林海孙凤珍朱正清于越刘冀钊刘立斌
Owner CHINA RAILWAY DESIGN GRP CO LTD
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