Vibration Comfort Assessment and Control of Pedestrian-Induced Vibrations in Curved Pedestrian Bridges

MA Hongwei; WANG Pengyuan; XIONG Wei; LI Hongbo; HE Zhongyi; ZENG Yutang; DU Rui

doi:10.3724/j.gyjzG25081002

Volume 55 Issue 12

Dec. 2025

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MA Hongwei, WANG Pengyuan, XIONG Wei, LI Hongbo, HE Zhongyi, ZENG Yutang, DU Rui. Vibration Comfort Assessment and Control of Pedestrian-Induced Vibrations in Curved Pedestrian Bridges[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(12): 207-215. doi: 10.3724/j.gyjzG25081002

Citation:

MA Hongwei, WANG Pengyuan, XIONG Wei, LI Hongbo, HE Zhongyi, ZENG Yutang, DU Rui. Vibration Comfort Assessment and Control of Pedestrian-Induced Vibrations in Curved Pedestrian Bridges[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(12): 207-215. doi: 10.3724/j.gyjzG25081002

Citation:

MA Hongwei, WANG Pengyuan, XIONG Wei, LI Hongbo, HE Zhongyi, ZENG Yutang, DU Rui. Vibration Comfort Assessment and Control of Pedestrian-Induced Vibrations in Curved Pedestrian Bridges[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(12): 207-215. doi: 10.3724/j.gyjzG25081002

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Vibration Comfort Assessment and Control of Pedestrian-Induced Vibrations in Curved Pedestrian Bridges

doi: 10.3724/j.gyjzG25081002

1. School of Civil Engineering & Transportation，South China University of Technology，Guangzhou 510641，China;
2. Guangzhou Construction Co.，Ltd.，Guangzhou 510030，China;
3. China Guangzhou International Economic & Technical Cooperation Co.，Ltd.，Guangzhou 510030，China;
4. Guangzhou Metro Design & Research Institute，Guangzhou 510402，China;
5. Guangdong Tianxin Electric Power Engineering Testing Co.，Ltd.，Guangzhou 510663，China;
6. Guangdong Architectural Design & Research Institute Group Co.，Ltd.，Guangzhou 501101，China

Received Date: 2025-08-10
Available Online: 2026-01-06
Publish Date: 2025-12-20

Abstract

Abstract

In order to effectively suppress the dynamic response of pedestrian bridges under vertical periodic loads， this paper compares the effectiveness of installing a tuned mass damper （TMD） and a rotary inertial double-tuned mass damper （RIDTMD） in reducing vertical acceleration. Taking a typical section of an elevated pedestrian bridge in a mountain trail project as the research background and considering the actual stiffness of the supports， this paper analyzes the mechanical properties of a curved pedestrian bridge under static loading. Using the finite element software MIDAS/Civil and ANSYS， a refined finite element model of the bridge section was established. Loads were applied according to the actual loading conditions， and strength and stiffness analyses were carried out. The relative error between the maximum stresses calculated by the two methods was only 0.59%. Comfort analysis of the pedestrian bridge was conducted by avoiding sensitive frequencies and limiting the dynamic response of the structure. Furthermore， the comfort rating of the pedestrian bridge was evaluated in accordance with Chinese and international standards. A control scheme for pedestrian-induced vibrations using a TMD was proposed. At the same time， the method of installing a rotary inertial double-tuned mass damper （RIDTMD） at the midspan of the fourth span of the pedestrian bridge was also adopted. Based on the improved fixed-point theory， the multi-parameter optimization of the RIDTMD was simplified to a two-dimensional optimization of mass and damping. The optimal parameters were determined through iterative calculations using MATLAB Simscape. By installing a TMD with a mass ratio of 3% at the midspan of the fourth span of the pedestrian bridge， the dynamic response under vertical periodic loads caused by inconsistent pedestrian paces could be effectively suppressed. The vibration reduction effect on vertical acceleration reached 61.8%. The comfort level of the pedestrian bridge was improved from CL₃ to CL₁ under German standards and from Grade 4 to Grade 2 according to Chinese standards. Under equivalent acceleration control effect， the tuned mass ratio was reduced from 3% to 1.95%， achieving a mass optimization rate of 35%.
- pedestrian bridge,
- comfort level,
- vibration control,
- tuned mass damper

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References(26)

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