@article {Zhang:2024:0736-2501:484, title = "Evaluating bridge-borne noise contribution degree for a railway steelconcrete composite box girder", journal = "Noise Control Engineering Journal", parent_itemid = "infobike://ince/ncej", publishercode ="ince", year = "2024", volume = "72", number = "6", publication date ="2024-11-01T00:00:00", pages = "484-499", itemtype = "ARTICLE", issn = "0736-2501", url = "https://ince.publisher.ingentaconnect.com/content/ince/ncej/2024/00000072/00000006/art00003", doi = "doi:10.3397/1/377237", keyword = "42, 43.2.2", author = "Zhang, Xun and Kong, Derui and Cui, Keer and Chen, Keer and Li, Xi", abstract = "A train running across a bridge usually produces higher noise than on the ground. This increase in noise varies considerably from one bridge to another, but the noise contribution of different bridges is unclear. A hybrid finite element boundary elementstatistical energy analysis method is used to investigate the vibroacoustic characteristics of a steelconcrete composite (SCC) bridge induced by running trains. The numerical procedure is verified by using a scaled SCC bridge measured in the laboratory. The mechanism of vibration transmission and vibroacoustic comparisons between a 40-m span SCC bridge and a traditional all-concrete bridge are investigated, and the results show that higher vibration levels (1220 dBA for different components) and sound levels (12 dBA on average) arise with the former. At a train speed of 300 km/h, the structural noise contribution of the SCC bridge to the total noise emission from the train pass-by is 67% in the near field. When the train speed reaches 385 km/h, the structural noise contribution can still reach 27%. The contribution of the deck and bottom plate to the structural noise was the highest, accounting for approximately 37%.", }