Study on the structure-borne noise of U-shaped girder bridges with fully-enclosed sound barriers

Song, Lizhong; Gao, Kui; Liu, Quanmin; Liu, Linya; Feng, Qingsong

doi:10.1016/j.apacoust.2023.109497

Cited by 6 publications

(2 citation statements)

References 41 publications

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“…As a kind of beam bridge structure widely used in practical engineering, U-beam bridges have the advantages of lower structure height and excellent anti-noise performance compared with box-beam bridges because of their unique structural characteristics [1,2]. U-beam bridges have become one of the important forms of railway and urban rail bridges.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Mechanical Behavior and Joint Shear Capacity Optimization of Glued Keys in Segmental U-Shaped Bridges

Yang,

Zhang,

Liang

et al. 2024

Buildings

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This paper presents an in-depth analysis of the mechanical behavior and joint shear capacity optimization of segmental U-shaped bridges, with a focus on the application of precast segmental techniques in the construction of U-beam bridges widely used in urban rail transit networks. This study further explores the roles of key position distribution and size in the overall stability and service behavior of such structures. Considering the critical case study of the Colombia Bogotá Metro Line 1 project, finite element modeling was carried out using ABAQUS 6.14 to simulate concrete material behaviors and to evaluate the stress–strain relationship in accordance with the concrete plastic damage model and existing standards. This research identifies the significant contribution of keys in minimizing deformation and enhancing shear capacity, demonstrating the pivotal influence of shear key design on the mechanical behavior of segmental bridges. By calculating the shear capacity under different cases, this study provides recommendations on key distributions and dimensions that optimize joint shear capacities, indicating that augmenting key size within the web plate section decisively reinforces the bridge’s mechanical resilience.

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Section: Introductionmentioning

confidence: 99%

Analysis of the Mechanical Behavior and Joint Shear Capacity Optimization of Glued Keys in Segmental U-Shaped Bridges

Yang,

Zhang,

Liang

et al. 2024

Buildings

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“…Consequently, there is a lack of sufficient understanding regarding the generation and characteristics of noise during the construction of the enclosure structure in rail transit projects. This leads to the lack of effective noise control strategies in practice, i.e., some projects adopt a fully enclosed soundproofing approach to cover the entire construction site with significant expenses [21], while others rarely implement any noise reduction measures, resulting in significant noise pollution.…”

Section: Introductionmentioning

confidence: 99%

Generation and Characteristics of Construction Noise in Rail Transit Engineering Enclosure Structures

Wu,

Zhang,

Liu

et al. 2024

Buildings

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Rail transit is an important part of the urban transportation system, while the noise generated during construction seriously affects the engineering personnel and surrounding residents. To investigate the noise emissions and characteristics during the construction of the enclosure structures in the rail transit engineering project, an empirical study is conducted through on-site surveys, semi-structured interviews, and experimental monitoring. The results indicate that during enclosure structure construction, there are nine key noise-emitting machines and four key noise-generating construction processes. Among them, the equivalent average sound levels of six machines, including pneumatic hammers, pneumatic drills, concrete pump trucks, construction drills, rotary drilling rigs, and grooving machines, exceed 80 dB(A). The energy contribution rate curves of machine spectra peak at 63 Hz, 500 Hz, 1000 Hz, and 4000 Hz, which have certain effects on construction personnel and nearby residents. Meanwhile, guide wall construction, groove construction, reinforcement cage fabrication and hoisting, and concrete pouring are identified as key noise-generating construction processes. This empirical investigation helps to establish a theoretical basis for noise control during the construction of enclosure structures in urban rail transit engineering projects, and the results provide valuable references for the formulation of auxiliary noise reduction measures.

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Mechanical Properties of Prestressed Concrete Trough Girder: Full-Scale Experiment and Nonlinear FE Analysis

Yuan,

Yang,

Wang

et al. 2024

KSCE J Civ Eng

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Study on the structure-borne noise of U-shaped girder bridges with fully-enclosed sound barriers

Cited by 6 publications

References 41 publications

Analysis of the Mechanical Behavior and Joint Shear Capacity Optimization of Glued Keys in Segmental U-Shaped Bridges

Analysis of the Mechanical Behavior and Joint Shear Capacity Optimization of Glued Keys in Segmental U-Shaped Bridges

Generation and Characteristics of Construction Noise in Rail Transit Engineering Enclosure Structures

Mechanical Properties of Prestressed Concrete Trough Girder: Full-Scale Experiment and Nonlinear FE Analysis

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