Railway sound barrier transparent sound insulating plate

Abstract

The invention relates to a railway sound barrier transparent sound insulating plate and belongs to the technical field of vibrating and noise lowering. A profile framework, a transparent sound insulating plate material, a damping device and rubber strip covers are included; the profile framework comprises an aluminum alloy cross beam, aluminum alloy edge frames and corner connection pieces; the damping device comprises interlayer rubber strips, insetting rubber strips and rubber strips between plate columns; the aluminum alloy cross beam is arranged in a through-length manner, and connected with the aluminum alloy edge frames in a buckling manner; the four corners are connected through the corner connection pieces; the insetting rubber strips are located between the profile framework and the transparent sound insulating plate material; the rubber strips between the plate columns are installed between the rubber strip covers and grooves of the aluminum alloy edge frames; the rubber strip covers are buckled in the grooves of the aluminum alloy edge frames; the lower portion of the aluminum alloy cross beam is provided with rubber strip clamping grooves; and the interlayer rubber strips are located in the rubber strip clamping grooves in the lower portion of the aluminum alloy cross beam. The railway sound barrier transparent sound insulating plate is used for effectively weakening pulse load transmission, and has extremely large bearing capacity, transmission and mutual touching collision of vibration between plates can be lowered, the vibration insulating effect is improved,and the anti-fatigue service life is prolonged.

Description

technical field [0001] The invention relates to a transparent sound insulation board for a railway sound barrier, in particular to a transparent sound barrier unit board composed of a transparent sound insulation board, a metal profile frame and a damping device, which belongs to the field of vibration and reduction in the field of environmental protection. noise technology field. Background technique [0002] In order to solve the noise pollution generated by railway operation, a large number of sound barriers are used along the railway. The transparent sound insulation board of the current railway sound barrier in my country is to install hollow rubber tubes on both sides of the aluminum alloy profile frame. After the actual operation, it is found that the hollow rubber tube is prone to compression permanent deformation under the excitation of the pulsating load, and the hollow rubber tube gradually loses its elasticity. , reduce the sealing and damping function; the curre...

AI Technical Summary

Problems solved by technology

The transparent sound insulation board of the current railway sound barrier in my country is to install hollow rubber tubes on both sides of the aluminum alloy profile frame. After the actual operation, it is found that the hollow rubber tube is prone to compression permanent deformation under the excitation of the pulsating load, and the hollow rubber tube gradually loses its elasticity. , reduce the sealing and damping function; the current railway sound barrier transparent sound insulation board uses a similar Ω-shaped solid rubber pad, fixed on the board with rivets, and its inter-layer vibration damping effect is poor; the current railway sound barrier is transparent The profile frames of the sound insulation panels are butt-fixed with 45° bevel angles. Under the action of train pulsating wind pressure, the pulsating load is transmitted from the transparent sound insulation panels to the profile frames, and the profile frames become the main load-bearing parts. The 45° bevel Corner-fixed profile frames have weaker ability to resist pulsating loads and poorer fatigue life

Images