城市轨道交通环境中既有建筑室内振动隔振方法研究

城市轨道交通的振动对其周围环境造成振动污染,对该振动隔振方法研究很有必要。结合工程实际,对地铁上方一居民小区住宅楼进行振动数据采样,并将测得的地面加速度作为对该建筑物的激励。根据建筑物本身情况,选用隔振方案,进行隔振设计和分析。根据振动加速度级,利用国家有关标准规定,对该建筑物隔振效果进行评价。

THE RESEARCH OF INDOOR VIBRATION ISOLATION OF EXISTING BUILDING IN THE ENVIRONMENT OF URBAN RAIL TRANSIT SYSTEM

The vibration of urban rail transit will bring vibration pollution to environment around them,so it is very essential to research the method of vibration isolation.Based on the reality of project,through the data sampling of a building of resident subzone above the subway,and the measured vibration acceleration of the sufface was taken as excitation of the building.According to conditions of the building,the method of vibration isolation was determined,and then the design and analysis of vibration isolation was carried through.Quantitative evaluation of the efficiency of vibration isolation was made,based on the vibration acceleration level and the Chinese national standard of limit of vibration.