Theoretical and field experimental evaluation of skewed modular slab bridges.

Details

• Creators:
  Fu, Chung C. ; Briner, Tim L. ; Getaneh, Tigist
• Corporate Creators:
  University of Maryland (College Park, Md.)
• Subject/TRT Terms:
  • Concrete overlays
  • Longitudinal cracking
  • Skewed structures
  • Precast concrete
  • Posttensioning
  • Prestressed concrete bridges
  • Literature reviews
  • Field tests
  • Finite element method
  • Pavements--Overlays
  More +
• Publication/ Report Number:
  MD-12-SP109B4N
• Resource Type:
  Tech Report
• Geographical Coverage:
  Maryland
• Edition:
  Final report.
• Corporate Publisher:
  Maryland. State Highway Administration
• Abstract:
  As a result of longitudinal cracking discovered in the concrete overlays of some recently-built skewed ; bridges, the Maryland State Highway Administration (SHA) requested that this research project be ; conducted for two purposes: (1) to determine the cause or causes of the reflective cracking on those bridges ; and (2) to propose additions and/or revisions to the current state bridge design standards concerning the ; number, orientation, and location of the transverse post-tensioning, specifically in reference to a bridge’s ; skewness. At first, a literature review and a state practices survey were conducted. Then, a bridge with a ; cracked concrete overlay in the State of Maryland was selected and field tested. Subsequently, the FEM ; model of the tested bridge was used as a base for further parametric study to gain more complete ; knowledge of how the skew angle affects transversely post-tensioned adjacent precast prestressed concrete ; slab bridges. Final summary and conclusions with recommended revisions to the current Maryland bridge ; design standards were made for the SHA’s consideration.
  More +
• Format:
  PDF
• Funding:
  SP109B4N
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/25516/dot_25516_DS1.pdf
• File Type:
  [PDF - 19.29 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:a3277ceb883ef798bb1bc9fd04fbfc84750aa7eec912c901ef89ece7889936c22df401a45030351ff0d189d5b3e35ea0c430a5139ab4a790ac6c814c57ea6ae8