Transfer and development length of prestressing tendons in full-scale AASHTO prestressed concrete girders using self-consolidating concrete.

Details

• Creators:
  Andrawes, Bassem ; Shin, Moochul ; Pozolo, Andrew
• Corporate Creators:
  Illinois Center for Transportation
• Corporate Contributors:
  Illinois. Department of Transportation. Bureau of Materials and Physical Research
• Subject/TRT Terms:
  Concrete Bridges High Strength Concrete Lightweight Concrete Prestressed Concrete Beams Tendons (Materials) High Strength Concrete Tendons (Prestressed Concrete)
• Publication/ Report Number:
  FHWA-ICT-09-038;ICT-09-038, UILU-ENG-2009-2009
• Resource Type:
  Tech Report
• Geographical Coverage:
  Illinois
• Corporate Publisher:
  Illinois Center for Transportation
• Abstract:
  Self-consolidating concrete (SCC) is a highly workable concrete that flows through densely reinforced or
  
  complex structural elements under its own weight. The benefits of using SCC include: a) Reducing labor costs
  
  by eliminating the need for mechanical vibration, b) Improving constructability, c) Providing a virtually flawless
  
  finish, d) Providing uniform and homogenous concrete, and e) Easily filling a complex shape formwork. Even
  
  though SCC is comparable to conventional concrete in terms of strength, the comparability of its bond to steel is
  
  less well-defined. This disparity of knowledge becomes more critical when using SCC in prestressed members
  
  due to the impact that bond strength has on the transfer and development lengths of prestressing tendons.
  
  The increasing interest among Illinois precasters in using SCC in bridge girders has motivated the Illinois
  
  Department of Transportation (IDOT) and the Illinois Center for Transportation (ICT) to sponsor this synthesis
  
  study, which reviews and combines information from literature discussing the impact of using SCC on the
  
  transfer and development lengths of prestressing tendons in AASHTO bridge girders. The primary objectives of
  
  this study include: (1) Utilizing the results of previous research to evaluate the effect of using SCC on the
  
  transfer and development lengths of prestressing tendons and evaluate how SCC compares with conventional
  
  concrete, (2) Investigating the feasibility of using SCC in AASHTO bridge girders without the need for changing
  
  current design provisions recommended by the ACI and AASHTO, and (3) Providing IDOT with
  
  recommendations regarding the application of SCC in prestressed bridge girders.
  
  
• Format:
  PDF
• Funding:
  ICT R27-36
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:c44dbfbb1230c27a853b0cf6506d9051f276e11140d3f9856a2e8f1d6941e7067f1d59d23a453324717d4e644d0cc8426225e32a16ab82d4b7527ef1aabd9d43
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/16714/dot_16714_DS1.pdf
• File Type:
  [PDF - 981.57 KB ]