Measurement and Simulation of Ground and Building Vibrations Caused by Metros on an Elevated Bridge

The vibration induced by metros is having a growing impact on people’s daily work and life. This paper proposes a propagation rule and an evaluation method for vibration based on experimental vibration data on the ground and inside a nearby 4-story building subjected to trains running on an elevated bridge in Guangzhou, China. The prediction model for the vibrations is proposed based on an existing model. This paper discusses the propagation characteristics of the vibration wave in different directions on the ground and inside the building. Then, a vibration level attenuation model of an elevated bridge section of Guangzhou was built using a linear regression method. Moreover, a finite element model of a test building was built to study the influence of the building structure on the building vibration response. The results reveal that vertical vibrations are much larger than the horizontal vibrations on the ground and inside the building near the elevated bridge. The dominant frequency of vibration is 20-120 Hz on the ground and inside the building. This study found a rebound acceleration area at a distance of 10-15 m away from the bridge. Inside the 4-story building, the acceleration levels increased gradually with increasing floor level. Moreover, slab thickness had little effect on the vibration and the story height of the building along the elevated bridge should be limited to below 3.7 m.

• Supplemental Notes:
  • This paper was sponsored by TRB committee ADC40 Standing Committee on Transportation-Related Noise and Vibration. Alternate title: Measurement and Simulation of Ground and Building Vibration Caused by Metros on an Elevated Bridge.
• Authors:
  • Cai, Ming
  • Wan, Wei
  • Wang, Haibo
  • Huang, Yao
• Conference:
  • Transportation Research Board 97th Annual Meeting
  • Location: Washington DC, United States
  • Date: 2018-1-7 to 2018-1-11
• Date: 2018

Language

• English

Media Info

• Media Type: Digital/other
• Features: References;
• Pagination: 6p

Subject/Index Terms

• TRT Terms: Measurement; Rail transit; Railroad bridges; Simulation; Vibration; Vibration tests
• Geographic Terms: Guangzhou (China)
• Subject Areas: Bridges and other structures; Environment; Public Transportation; Railroads;

Filing Info

• Accession Number: 01661291
• Record Type: Publication
• Report/Paper Numbers: 18-02448
• Files: TRIS, TRB, ATRI
• Created Date: Feb 26 2018 1:45PM