Design and Testing of Modular Expansion Joint Noise Mitigation Strategies

Details

• Creators:
  Reinhall, Per G. ; Thomas, Sawyer ; Lipton, Jeff ; Elmadih, Waiel
• Corporate Creators:
  University of Washington. Washington State Transportation Center (TRAC)
• Corporate Contributors:
  Washington State Department of Transportation ; United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  • Deformation
  • Durability
  • Expansion joints
  • Modular structures
  • Noise control
  • Pavement cracking
  • Permeability
  • Rutting
• Publication/ Report Number:
  WA-RD 920.1
• Resource Type:
  Tech Report
• Geographical Coverage:
  Washington ; United States
• Contracting Officer:
  Peterson, Jon
• Corporate Publisher:
  Washington State Department of Transportation
• Abstract:
  This study investigated the design and feasibility of noise mitigation strategies for installation in modular expansion joints (MEJs), with a focus on Washington state’s SR 520 bridge. The three main sources of noise from MEJs include resonance of the air within the gaps, resonance of the beams, and resonance of the tires. By filling the gaps in the MEJs with engineered chevron support structures we have shown that it is feasible to significantly reduce the noise from MEJs. We performed both experimental and computer evaluations of a noise attenuation system before performing limited testing on the SR 520 bridge.
• Format:
  PDF
• Funding:
  Agreement T1461, Task 78
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/82164/dot_82164_DS1.pdf
• File Type:
  [PDF - 5.26 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:fce7f9894336478de7228a5600dcd24be8c8966f2712ba31cf8e43e8611f96b572c616a7c82ac4ad784f48fe69bfeda6e7bc0a1a5b24d57fa99cb11a52dd0b46