浅析铁路路基声屏障结构设计

Structural Design of Railway Noise Barrier

铁路声屏障主要承受重力荷载和风荷载作用,从声衰减理论入手确定声屏障的高度和长度,验算在荷载作用下H型钢立柱强度、挠度和稳定性、柱脚连接强度及下部桩基承载力等指标,介绍了铁路路基声屏障设计原理。

A reliable calculation method for railway subgrade noise barrier is presented in this paper.Based on the sound attenuation theory,the height and the range of the subgrade noise barrier were calculated.Under the action of gravity and wind,the parameters were calculated,which include the strength,deflection and stability of the H-profiled-bar column,the connection strength of the column base and the strength of pile foundation.The information involved would be helpful and valuable for structural design and appliance of subgrade noise barrier.