Numerical investigation of noise generation and radiation from an existing modular expansion joint between prestressed concrete bridges

被引：27

作者：

Ghimire, Jhabindra P. ^{[1
]}

Matsumoto, Yasunao ^{[1
]}

Yamaguchi, Hiroki ^{[1
]}

Kurahashi, Itsumi ^{[1
]}

机构：

[1] Saitama Univ, Dept Civil & Environm Engn, Sakura Ku, Saitama 3388570, Japan

来源：

JOURNAL OF SOUND AND VIBRATION | 2009年 / 328卷 / 1-2期

关键词：

BOUNDARY-ELEMENT FORMULATION; VIBROACOUSTIC ANALYSIS; IMPEDANCE; FATIGUE;

D O I：

10.1016/j.jsv.2009.07.016

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Noise generated from modular bridge expansion joints during vehicle pass-bys has caused localized environmental problems in Japan and elsewhere. The objective of this study was to understand the mechanism of noise generation and radiation from a modular expansion joint installed in an expressway bridge. A numerical investigation was conducted in order to understand the dynamic characteristics of the joint and the acoustic characteristics of the sound field around the joint that measurements cannot reveal due to their limitations, such as the number of measurement locations that are required. Vibro-acoustic analysis was conducted by using the finite element method-boundary element method (FEM-BEM) approach: dynamic analysis of the joint was carried out by FEM and the sound fields inside the cavity located beneath the joint and outside of the cavity were analyzed by BEM. It was concluded that dominant frequency components in the sound pressure inside the cavity were due to excitation of the structural modes of the joint and/or acoustic modes of the cavity. For the expansion joint investigated, the sound field farther than about 35 m from the joint-cavity center could be considered as far field in the range of 50-400 Hz. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：129 / 147

页数：19

共 28 条

[21]

RAMBERGER G, 2002, STRUCTURAL ENG DOCUM, V6

[22] An indirect boundary element formulation for multi-valued impedance simulation in structural acoustics [J].

Raveendra, ST ;

Vlahopoulos, N ;

Glaves, A .

APPLIED MATHEMATICAL MODELLING, 1998, 22 (06) :379-393

[23] Mechanism of noise generation from a modular expansion joint under vehicle passage [J].

Ravshanovich, K. A. ;

Yamaguchi, H. ;

Matsumoto, Y. ;

Tomida, N. ;

Uno, S. .

ENGINEERING STRUCTURES, 2007, 29 (09) :2206-2218

[24]

RICE EJ, 1979, P 17 AER SCI M 1979, P1

[25] Fatigue and dynamic load measurements on modular expansion joints [J].

Roeder, CW .

CONSTRUCTION AND BUILDING MATERIALS, 1998, 12 (2-3) :143-150

[26] Dynamic response of expansion joints to traffic loading [J].

Steenbergen, MJMM .

ENGINEERING STRUCTURES, 2004, 26 (12) :1677-1690

[27] Formulation, implementation and validation of multiple connection and free edge constraints in an indirect boundary element formulation [J].

Vlahopoulos, N ;

Raveendra, ST .

JOURNAL OF SOUND AND VIBRATION, 1998, 210 (01) :137-152

[28] Formulation of a numerical process for acoustic impedance sensitivity analysis based on the indirect boundary element method [J].

Zhang, ZD ;

Vlahopoulos, N ;

Raveendra, ST .

ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS, 2003, 27 (07) :671-681

← 1 2 3 →