Mounting structure for sound absorption unit plates of fully-enclosed sound barrier for high speed railway

A technology for high-speed railways and unit panels, applied in noise absorbing devices, buildings, etc., can solve the problems of cumbersome connections, high steel consumption, and easy damage, and achieve simple overall structure, lower utilization rates, and avoid excessive collisions Effect

Pending Publication Date: 2019-12-31
CHINA RAILWAY SHANGHAI ENGINEERING BUREAU GROUP CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing arched steel structure, the connection relationship between the sound-absorbing panels is cumbersome, the consumption of steel is large, and the unit shell of the sound-absorbing panel is in direct contact with the steel beam, and it is easily damaged when it moves under wind pressure

Method used

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  • Mounting structure for sound absorption unit plates of fully-enclosed sound barrier for high speed railway
  • Mounting structure for sound absorption unit plates of fully-enclosed sound barrier for high speed railway
  • Mounting structure for sound absorption unit plates of fully-enclosed sound barrier for high speed railway

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Embodiment

[0028] See attached figure 1 , is a fully enclosed sound barrier project, which is assembled from multiple curved H-shaped steel beams with the same structure (clear span 12.08m, height 9.4m), steel tie rods, double limb angle braces and sound-absorbing unit panels 5 , steel beam 1 has a net span of 12.08m, a sag height of 9.4m, the section height of arc steel beam 1 is 500mm, and the width is 300mm; The 140mm cavity card slot between the edge, the fixed baffle 2 and the limit baffle 3, the sound-absorbing unit plate 5 is inserted into the internode of the steel beam 1 as a whole by using the movable baffle 4 in the neutral position, relying on the EPDM strip 6 The design avoids direct contact between the shell of the sound-absorbing unit plate 5 and the steel beam 1, and it is easy to be damaged due to movement under wind pressure.

[0029] The sound-absorbing unit board 5 is composed of a panel 7, glass wool 8 and a back board 9. The upper and lower ends of the sound-absorb...

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PUM

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Abstract

The invention provides a mounting structure for sound absorption unit plates of a fully-enclosed sound barrier for a high speed railway. The sound absorption unit plates are connected to form a circular arc shape; the mounting structure comprises a fixed connection structure and a movable connection structure; the fixed connection structure and the movable connection structure are located betweentwo adjacent sound absorption unit plates; the fixed connection structure comprises an outer edge flange, a limiting baffle plate, a fixed baffle plate and a steel beam; and the movable connection structure comprises an outer edge flange, a limiting baffle plate, a movable baffle plate and a steel beam. The mounting structure provided by the invention has the advantages that the limiting baffle plate, the fixed baffle plate and the movable baffle plate are used and have a reinforcing and stabilizing effect on the sound absorption unit plates; a metal sound absorption plate is obliquely inserted into a clamping groove of an arc-shaped steel beam cavity through the neutral position of the movable baffle plate; the arc-shaped steel beam is in indirect contact with the sound absorption unit plates through ethylene-propylene-diene monomer; and the ethylene-propylene-diene monomer has effective vibration absorption and cushioning effects during vibration, so that a plate body is prevented from being damaged rapidly.

Description

technical field [0001] The invention relates to the field of sound-absorbing panels, in particular to an installation structure for a sound-absorbing unit panel of a fully enclosed sound barrier of a high-speed railway. Background technique [0002] Due to the rapid development of domestic high-speed railways, a lot of noise pollution is generated to the environment. The sound barrier occupies a small area, is convenient and quick to manufacture and install, and has low economic cost. It has become an important measure for traffic noise pollution control. Therefore, in-depth research and a lot of practice have been carried out in the design and construction of high-speed railway sound barriers. [0003] In order to reduce the load of the train wind and natural wind on the steel structure and sound-absorbing panels, the steel structure is changed from a conventional ordinary gantry steel structure to an arched steel structure. Compared with the ordinary gantry structure, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01F8/00
CPCE01F8/00E01F8/0017E01F8/0023
Inventor 张腾飞赵国权李佳斌
Owner CHINA RAILWAY SHANGHAI ENGINEERING BUREAU GROUP CO LTD
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