Analysis of vehicle-induced structure-borne noise characteristics of large-span steel bridge with different structure forms

被引：0

作者：

Li X. ^{[1
]}

Gong Z. ^{[1
]}

机构：

[1] School of Engineering, Southwest Jiaotong University, Chengdu

来源：

Zhendong yu Chongji/Journal of Vibration and Shock | 2021年 / 40卷 / 16期

关键词：

Long-span steel bridge; Statistical energy analysis(SEA); Train-induced structure-borne noise; Train-track-bridge coupling vibration;

D O I：

10.13465/j.cnki.jvs.2021.16.012

中图分类号：

学科分类号：

摘要：

To investigate the train-induced structure-borne noise characteristics of large-span steel bridge with different structure forms, the structural noise prediction model of long-span steel bridge was established based on the vehicle-track-bridge coupling vibration analysis and the statistical energy analysis (SEA) theory. Firstly, the subsystems were divided according to the model similarity of bridge components. Then the vehicle-track-bridge coupling vibration model in frequency domain was established, and the frequency-domain supporting forces between track slabs and bridge deck serving as the input excitation were obtained by describing the wheel-rail interaction based on the track-irregularity theory. Finally, based on the SEA power balance equation, the dynamic and acoustic coupling relationship between the bridge subsystems was established and solved. In this paper, the reliability of the sound prediction model was verified by the on-site test of Qiansimen Bridge. The spectral characteristics, the far-field radiation law, the attenuation rates and the components' acoustic contributions of long-span steel bridges with truss girder and box girder were analyzed. The results show that the structure-borne noise of long-span steel bridge with truss girder and box girder mainly focus on the medium and high frequency, and the peak values are in the range of 63-160 Hz; The acoustic contribution rates of the lower deck system of steel truss-girder bridge at the horizontal and vertical field points are 79.40% and 90.96%, among which the decks are 32.08% and 35.47%, followed by the longitudinal beams, lower chords and transverse beams; the acoustic contribution rates of decks of steel box-girder bridge at the horizontal and vertical field points are 31.38% and 46.04%, the acoustic contribution rates of longitudinal ribs, middle webs and bottom plates are much lower than that of diaphragm and side webs. © 2021, Editorial Office of Journal of Vibration and Shock. All right reserved.

引用

页码：91 / 99and158

共 24 条

[1]

JANSSENS M H A, THOMPSON D J., A calculation model for the noise from steel railway bridges, Journal of Sound and Vibration, 193, 1, pp. 295-305, (1996)

[2]

LI Qi, WU Dingjun, Numerical simulation and field tests of concrete bridge-borne low-frequency noises, Journal of the China Railway Society, 35, 3, pp. 89-94, (2013)

[3]

THOMPSON D., Railway noise and vibration: mechanisms, modelling and means of control, (2009)

[4]

LI Xiaozhen, LIU Quanmin, SONG Lizhong, Et al., State-of-the-art review of vibration and noise reduction of rail transit bridges in 2019, Journal of Civil and Environmental Engineering, 42, 5, pp. 223-234, (2020)

[5]

WALKER J G, FERGUSON N S, SMITH M G., An investigation of noise from trains on bridges, Journal of Sound and Vibration, 193, 1, pp. 307-314, (1996)

[6]

NGAI K W, NG C F., Structure-borne noise and vibration of concrete box structure and rail viaduct, Journal of Sound and Vibration, 225, 2, pp. 281-297, (2001)

[7]

WU T X, LIU J H., Sound emission comparisons between the box-shaped and U-shaped concrete structures for elevated railway, Inter-noise and Noise-con Congress and Conference, (2011)

[8]

JANAS L., Comparison of acoustic phenomena in the vicinity of two types of steel plate girder bridges, IOP Conference Series: Materials Science an Engineering, (2018)

[9]

GAO Fei, XIA He, CAO Yanmei, Et al., Vibration and noise influences of elevated structures in urban railway, Journal of Vibration and Shock, 31, 4, pp. 72-76, (2012)

[10]

LI Xiaozhen, ZHANG Xun, LIU Quanmin, Et al., Prediction of structure-borne noise of high-speed railway bridges in whole frequency brands (part I): theoretical model, Journal of the China Railway Society, 35, 1, pp. 101-107, (2013)

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