Assessing the need for intermediate diaphragms in prestressed concrete bridges.

Details

• Creators:
  Cai, Steve C. S.
• Corporate Creators:
  Louisiana Transportation Research Center
• Subject/TRT Terms:
  • Diaphragms (Engineering)
  • Prestressed concrete bridges
  • Girders
  • Steel
  • Reinforced concrete
  • Cost effectiveness
  • Concrete bridges
  • Intermediate diaphragms
• Publication/ Report Number:
  LTRC technical summary report 420 ; LTRC Proj. No. 03-3ST ~ FHWA/LA. 03/420 ; State Proj. No. 736-99-1134
• Resource Type:
  Tech Report
• Geographical Coverage:
  Louisiana
• Corporate Publisher:
  Louisiana Transportation Research Center
• Abstract:
  Reinforced concrete intermediate diaphragms (IDs) are currently being used in prestressed concrete (PC) girder bridges in Louisiana. Some of the advantages of providing IDs are disputed in the bridge community; the use of IDs increases the cost and time of construction. There is no consistency in the practice of providing IDs among various states and codes of practice, and the overall effectiveness of IDs in prestressed concrete bridges is unclear. ; The objectives of this research were: (1) to assess the need for IDs in concrete highway bridges and (2) to investigate if the use of steel diaphragms is justified.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/22345/dot_22345_DS1.pdf
• File Type:
  [PDF - 30.27 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:0039aad697973c706f11b85ab171a98cae9eacc1396362e053b9c8b2b1a6d9dfde063ffea654bbb07599ece15a39732616294174c71db991766747f4d7f5272a