High performance concrete in Washington state SR 18/SR 516 overcrossing : interim report on girder monitoring

Details

• Creators:
  Barr, P. ; Fekete, E. ; Eberhard, M. ; Stanton, J. ; Khaleghi, B. ; Hsieh, J. C.
• Corporate Creators:
  Washington (State). Department of Transportation ; University of Washington
• Subject/TRT Terms:
  Bridges Bridges(Structures) Compressive Strength Concrete Durability Flexural Strength Girder Bridges Girders High Performance Concrete High Strength Concretes Highway Bridges Monitoring Pavement Performance Prestressed Concrete Washington(State)

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• Resource Type:
  Tech Report
• Geographical Coverage:
  Washington
• Edition:
  Interim Report; January 1996 - November 1998
• Corporate Publisher:
  Turner-Fairbank Highway Research Center
• Abstract:
  In the mid 1990's the FHWA established a High Performance Concrete (HPC) program aimed at demonstrating the
  
  positive effects of utilizing HPC in bridges. Research on the benefits of using high performance concrete for bridges
  
  has shown a number of benefits. These include increased span capacities, or wider girder spacings (and hence a
  
  fewer number of girders); increased concrete compressive and flexural capacities; and improved concrete durability.
  
  However, inspite all of these positive research results, relatively little has been done regarding the implementation of
  
  high performance concrete in bridges in the United States. The general goals of the FHWA program are: to
  
  encourage the States to implement HPC in bridges; to develop appropriate mix designs and establish quality control
  
  procedures; to encourage the use of larger diameter (15mm (0.6")) prestressing strands in the girders; to evaluate
  
  the performance of the structure; and to provide for technology transfer through development of a workshop
  
  (showcase).
  
  This report presents interim results of the effectiveness of using HPC in prestressed precast concrete girders on a
  
  bridge in the state of Washington. State Route 516 utilizes WSDOT 74G pretensioned I-girders with a 190 mm
  
  cast-in-place composite deck. The girders were fabricated with 15mm diameter prestressing strands at 50 mm
  
  spacing, and designed for a concrete compressive strength of 69 MPa at 56 days. This report documents
  
  fabrication of a test girder and the bridge girders; provides a description of the instrumentation program; presents
  
  the measured data including strain, camber, temperature time histories, and prestress losses; and evaluates the
  
  accuracy of the prestress loss equations in predicting observed prestress losses.
  
  This is the first of a two part interim report. The second report is titled, ‘High Performance Concrete in Washington
  
  State SR18/SR516 Overcrossing: Interim Report on Materials Tests’.
  
  
• Format:
  PDF
• Funding:
  DTFH71-96-TE036-WA-28
• Collection(s):
  US Transportation Collection Federal Highway Administration
• Main Document Checksum:
  urn:sha-512:e65e06d7f30faac07c32319d5eed55cb538999feea35d606258c8a38df135dd8b959046955d4ee6de725750ed3f807dcb2284404fd6c84dd5df5116f6d477c46
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/15401/dot_15401_DS1.pdf
• File Type:
  [PDF - 2.29 MB ]