Structural design guidelines for concrete bridge decks reinforced with corrosion-resistant reinforcing bars.

Details

• Creators:
  Salomon, Abraham Lama ; Moen, Cristopher D.
• Corporate Creators:
  Virginia Center for Transportation Innovation and Research
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  • Bridge decks
  • Structural design
  • Reinforcing bars
  • Corrosion resistance
  • Steel
  • Concrete bridges
  • Structural analysis
  • Guidelines
• Publication/ Report Number:
  FHWA/VCTIR 15-R10
• Resource Type:
  Tech Report
• Geographical Coverage:
  Virginia
• Corporate Publisher:
  Virginia. Dept. of Transportation
• Abstract:
  This research program develops and validates structural design guidelines and details for concrete bridge decks with ; corrosion-resistant reinforcing (CRR) bars. A two-phase experimental program was conducted where a control test set consistent ; with a typical Virginia Department of Transportation bridge deck design using Grade 60 steel (ASTM A615, fy ; = 60 ksi) and ; epoxy-coated reinforcing steel was compared to deck slab specimens where Grade 60 is replaced with CRR bars. ; The experimental program was designed to evaluate how flexural performance at service and ultimate limit states are ; affected by a one-to-one replacement of Grade 60 with CRR bars, a reduction of concrete clear cover, and a reduction in rebar ; size. Structural analysis models were developed using Response 2000 in order to predict the CRR bridge deck moment-curvature ; and the moment-crack width relationships. ; Experimental trends proved to be consistent with the analytical results demonstrating the viability of Response 2000 as a ; design tool for reinforced concrete with high-strength and nonmetallic rebar without a defined yield plateau. For reduced bar size ; and clear cover (2.00 in instead 2.50 in), ASTM A1035 and UNS S32304 specimens proved to have similar deformability ratios ; and crack widths that comply with current AASHTO requirements, with as much as 36% less steel.
  More +
• Format:
  PDF
• Funding:
  101602
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/28195/dot_28195_DS1.pdf
• File Type:
  [PDF - 943.57 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:a4f6a9eaa0bc0be793a81a0c6885620564292f0a1a9fea1f14dd6cef0b8e29ca