基于Cadna/A软件的城市交通复杂声场高层建筑噪声影响预测分析

Prediction and analysis of noise impact on high-rise buildings in urban traffic complex sound field based on Cadna/A software

利用Cadna/A软件建立道路模型,预测城市主干道交通噪声对临近高层建筑的影响,并模拟声屏障措施的降噪效果。结果表明随着建筑物高度的增加,噪声级呈现先增加后减小的趋势;而声屏障降噪效果主要集中在声影区范围内,对于城市交通主干道两侧前排敏感区域需考虑综合降噪措施。

The road model is established by Cadna/A software to predict the impact of urban main road traffic noise on adjacent high-rise buildings, and simulate the noise reduction effect of sound barrier measures. The results show that with the increase of building height, the noise level first increases and then decreases. The noise barrier noise reduction effect is mainly concentrated in the sound shadow area.For the front sensitive areas on both sides of urban traffic trunk roads, comprehensive noise reduction measures should be considered.