Sustainable Alternative to Structurally Deficient Bridges

Structurally deficient bridges in the United States may be replaced with a viable alternative made with Cross Laminated Timber (CLT). The alternative promotes environmental sustainability, diversified wood production opportunities, and increased public safety and construction efficiency. CLT products' superior strength, durability and sustainability have led to commercialization for building applications, but CLT has never been applied to bridge systems. The ultimate goal of this project is to improve bridge sustainability and performance using CLT products. To achieve this goal, researchers will pursue the following research objectives: (1) conceptualize a new CLT girder bridge system; (2) design and manufacture the full-scale specimen; and (3) investigate structural performance of the bridge system. To succeed, one CLT fabricator, who serves as an industrial collaborator on this project, will provide practical input for the production of the specimen. Further, one graduate student will gain hands-on research experience and real-world solutions. The principal investigator (PI) will integrate the findings into South Dakota State University (SDSU) engineering courses, including CEE 792: Bridge Engineering, to introduce students to CLT bridge performance.

• Record URL:
  https://www.ugpti.org/resources/reports/details.php?id=1122
• Record URL:
  https://rosap.ntl.bts.gov/view/dot/67367
• Summary URL:
  https://rosap.ntl.bts.gov/view/dot/67544
• Supplemental Notes:
  • This document was sponsored by the U.S. Department of Transportation, University Transportation Centers Program.
• Corporate Authors:

  South Dakota State University, Brookings

  Department of Civil and Environmental Engineering
  Brookings, SD  United States  57007

  Mountain-Plains Consortium

  North Dakota State University
  Fargo, ND  United States  58108

  Office of the Assistant Secretary for Research and Technology

  University Transportation Centers Program
  Department of Transportation
  Washington, DC  United States  20590
• Authors:
  • Seo, Junwon
  • Jeong, Euiseok
  • Wehbe, Nadim
• Publication Date: 2023-3

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final Report
• Features: Appendices; Figures; Photos; References; Tables;
• Pagination: 232p

Subject/Index Terms

• TRT Terms: Bridge construction; Bridge design; Girders; Laminated wood; Load tests; Structural analysis
• Subject Areas: Bridges and other structures; Construction; Design; Highways; Materials;

Filing Info

• Accession Number: 01883802
• Record Type: Publication
• Report/Paper Numbers: MPC 23-497
• Contract Numbers: MPC-576
• Files: UTC, NTL, TRIS, ATRI, USDOT
• Created Date: May 26 2023 8:51AM