Innovative concrete bridging systems for pedestrian bridges : implementation and monitoring.

Details

• Creators:
  Myers, John J. ; Bloch, Kurt E.
• Corporate Creators:
  Missouri University of Science and Technology. Center for Transportation Infrastructure and Safety
• Corporate Contributors:
  United States. Department of Transportation. Research and Innovative Technology Administration
• Subject/TRT Terms:
  • Footbridges
  • Precast concrete
  • High strength concrete
  • Self compacting concrete
  • Compressive strength
  • Glass fiber reinforced plastics
  • Bridge decks
  • Beams
  • Live loads
  • Load tests
• Publication/ Report Number:
  NUTC R250;Project # 00024651
• Resource Type:
  Tech Report
• Geographical Coverage:
  Missouri
• Corporate Publisher:
  Missouri University of Science and Technology. Center for Transportation Infrastructure and Safety
• Abstract:
  Two precast, prestressed pedestrian bridges were designed for rapid construction in Rolla, MO, utilizing high-strength concrete (HSC) ; and high-strength self-consolidating concrete (HS-SCC) with a target 28 day compressive strength of 68.9 MPa (10,000 psi) and ; release compressive strength of 24.1 MPa (3,500 psi). In addition, a glass fiber reinforced polymer (GFRP) bar reinforced deck panel ; system was utilized in one of the two deck panels on each bridge. Material properties were tested for compression, elastic modulus, ; modulus of rupture, splitting tensile strength, creep, and shrinkage following ASTM standards. Instrumentation systems within the ; spandrel beams and precast deck panels were implemented to monitor early and later-age temperature and strain variations between ; the concrete mixtures and reinforcing types. In addition, the sensors were utilized to calculate the prestress losses for HSC and HSSCC ; in the spandrel beams. A live load test was completed one year after spandrel beam fabrication to investigate the differences in ; deflection of HSC, HS-SCC, and reinforcement types. All material and mechanical results were compared between HSC and HSSCC. ; Furthermore, the results were compared to standard empirical models presented by AASHTO, ACI, and PCI.
• Format:
  PDF
• Funding:
  DTRT06-G-0014
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/27910/dot_27910_DS1.pdf
• File Type:
  [PDF - 44.59 MB]
• Collection(s):
  University Transportation Centers ; US Transportation Collection
• Main Document Checksum:
  urn:sha-512:fb6c4477a41106ca5195b0bb839ae3dc2bb1e684eac83f242c7adf501e6a2fb8752906664d1f8c1d327d51ee5491221a9d201699bbc0ebacb2be1f0e45b466e0