关键词: 多重立体交通, 现场实测, 振动噪声评价, 振动控制

Abstract: This study focuses on a street-front building in Wuhan, investigating the indoor vibration and noise characteristics of buildings subjected to multi-level transportation through field measurements. The indoor vibration and noise levels were evaluated in accordance with the standard JGJ/T 170-2009.The results indicate that among various single vibration sources, the excitation from an arriving subway has the most significant impact on indoor vibration. Under multi-source conditions, as the number of vibration sources increases, the peak acceleration of indoor vibration increases, the frequency distribution broadens, and the vibration response across all frequency bands is amplified. Both the peak vibration acceleration and the maximum sound pressure level at the center of the indoor floor slab exhibit a trend of initially decreasing and then increasing with the rise of the building floor. Indoor vibration levels are higher during off-peak periods and at night, but lower during morning and evening peak hours. Conversely, indoor noise levels are higher during morning and evening peak hours and lower during off-peak periods and at night. The vibration of the floor slabs in rooms on all floors meets the standard limit requirements; however, the indoor noise level on the fifth floor exceeds the specified limit.This research provides valuable guidance for reducing interference caused by traffic vibration and traffic noise to residents along urban multi-level transportation routes.

Key words: multi-level transportation, field measurement, vibration and noise evaluation, vibration control