公路桥梁交通噪音及其控制研究

【作者】 梁艳；

【导师】 李子青； 郝宪武；

【作者基本信息】 长安大学 ， 桥梁与隧道工程， 2003， 硕士

【摘要】 随着中国的发展，公路、桥梁、轻轨等基础设施建设蓬勃兴起，给国民经济注入了新的活力。但是，交通大发展的同时，也给生态环境、人民群众的生活带来了许多负面影响，本文拟对这个问题进行初步探讨。由于时间及精力的限制，本论文仅就交通噪音的问题进行了较为详细的研究。 交通噪音的危害有目共睹。由于其是声波的一种形式，本文对其发生与传播进行了初步探讨，对影响交通噪声的因素进行了一系列的分析。 当行驶车辆的噪声作用在桥梁结构上时，由于耦合作用，其叠加后的效果将不同于在道路上的噪声。本文通过这方面的分析，提出了桥梁结构上噪声的预测方法。 对于桥梁结构上交通噪声的控制，本文采取了限制噪声源和控制噪声传播途径两个措施。限制噪声源，主要建议使用低噪音桥面铺装层；控制噪声传播途径，主要采取的措施是设置道路声屏障，尤其在城市高架桥上推荐使用。本文对这两个方面均进行了较为深入的研究，提出了一些控制指标。更多还原

【Abstract】 With the development of China, basic establishments such as highway, bridge, light rail traffic etc, are blooming, and bring the new blood to country economy. Meanwhile, the development of transportation has brought bad effects to environment and humans’ life. The thesis will discuss the problem. But due to the limits of time and energy, the emphases will be focused on the traffic noises.As most people know, traffic noise does much harm to a lot of things. Because it is a kind of sound waves, the thesis has studied the principle of the occurrence and prevalence. And the effects on traffic noises have analyzed thoroughly too.When the noise of vehicles is operated on the bridges, the effect will be different with that of highways owing to the coupling of bridges and vehicles. By analyzing the coupling, the thesis has put forward the ways of forecasting of the noise on bridges.The controlling of traffic noises has two ways in the thesis. First, the sonic source is limited and low-noise bridge deck pavement is suggested to use. Second, the route of spread is controlled and acoustic barrier is set up, especially in the viaduct. The thesis has researched the two problems thoroughly and some guidelines have advanced.更多还原