Theoretical and field experimental evaluation of skewed modular slab bridges : [research summary].

Details

• Creators:
  Fu, Chung C.
• 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
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• Resource Type:
  Tech Report
• Geographical Coverage:
  Maryland
• Corporate Publisher:
  Maryland. State Highway Administration
• Abstract:
  Adjacent precast, prestressed concrete multi-beam bridges have become more ; prevalent due to their rapid construction time and cost effectiveness. Over the ; years, various adjustments and refinements have been made to the design of ; these bridges to reduce typical deteriorations, including shear key failure, ; reflective cracking of the overlay, chloride penetration, and freeze/thaw damage. ; Transverse post-tensioning is a common method that improves a bridge’s ability ; to perform monolithically and reduces the amount of cracking in the overlay. ; This method has been used with some success. However, longitudinal cracking ; (possibly caused by insufficient and/or inadequate transverse connection ; between the beams) has been discovered in the concrete overlays of some ; skewed bridges that have been built within the past five years.
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• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/25517/dot_25517_DS1.pdf
• File Type:
  [PDF - 67.65 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:29bf6722a10f8275bdec93138058eccc83a8b0fcda8fa5f33f8dc3b9bb87a62854b506b9cf4b934931a3e22e86926fe328125d8cb0efb344516937f3cc1b9bfe