Study On The Establishment Of Railroad Noise Sound Barrier Structure

With the developing of modern transportation, the noise pollution of the road is becoming more serious environment concern. It will strongly affect people's physical health, thus it is becoming an invisible killer for our environment, especially for the noise comes from railway. Therefore, to have noise proof wall can be one of the effective methods on solving the problem of railway noise.This article aims at the sound barrier structure to study the discussion, mainly to the sound barrier highly, sound barrier thickness, the sound barrier column's burying depth as well as the sound barrier mask width carries on studies the discussion separately. The barrier crown displacement which, the barrier stress and the shearing stress centralism distributed situation after the sound barrier structure through loads different load produces, comes to carry on the analysis to the sound barrier design parameter.This article applys the ANSYS software to set up finite element model, in view of the embankment and the viaduct sound barrier different characteristic, selects the plain concrete material and the light quality separately models the steel glass materials.Regarding the embankment sound barrier structure, discussed the column different burying depth separately and the barrier thickness of slab to the barrier crown displacement quantity and the stress, the shearing stress,along with column's burying depth deepening, the crown displacement quantity reduces, the stress and the shearing stress reduce; The barrier thickness of slab increases, its crown displacement quantity also correspondingly reduces.Regarding the viaduct sound barrier structure, discussed the different high viaduct's different wind load and the sound barrie mask width separately to its structural strength and the crown displacement's influence. Along with high structure height's increase, the wind pressure increases along with it, is bigger to the sound barrier structure's pressure, the crown displacement quantity also increases, in order to enhance the sound barrier structure the stability, may reduce between column's distance, namely the sound screen shadow mask width is narrower, its structure crown displacement quantity is smaller.