COMPUTER-AIDED DETAILING OF STEEL IN BRIDGES: PC T GIRDER

Although the structural analysis of bridges is today always conducted with the help of computer software, the complementary task of designing and detailing steel in concrete bridges is usually left for manual computation. This paper discusses the detailing of steel in a prestressed concrete T girder, and the complexities of developing software for it. The scope of the present study, is limited to detailing prestressing cables and other passive steel in the PC T girder, which forms that part of a composite bridge deck consisting of simply supported T girders and an in-situ concrete slab. Several assumptions are specified. The paper describes the structure of the detailing software, which consists of the module MAIN and two submodules PSC1 and PSC2. MAIN opens output and data files and reads input data. PSCB1 calculates the numbers of cables required in two stages of construction, and their locations at mid-span for given bending moments and assumed values of losses in prestresses. PSCB2 calculates the coordinates and force variation of each cable, the actual loss factors, and the stresses at preselected sections. The paper also describes the program's input data and several typical numerical examples, and presents several conclusions.

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  • Corporate Authors:

    Indian Roads Congress

    Jamnagar House, Shahjahan Road
    New Delhi,   India  110 011
  • Authors:
    • TAMHANKAR, M G
    • BADAWE, B B
    • RAJU, KRK
  • Publication Date: 1998-5

Language

  • English

Media Info

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Filing Info

  • Accession Number: 00769920
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Oct 7 1999 12:00AM