プレストレストコンクリート梁部材の高温時曲げ耐力評価  [in Japanese] FLEXURAL CAPACITY EVALUATION OF PRESTRESSED CONCRETE BEAMS AT ELEVATED TEMPERATURE  [in Japanese]

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Author(s)

    • 谷 昌典 TANI Masanori
    • 京都大学大学院工学研究科都市環境工学専攻 Dept. of Urban and Environmental Engineering, Kyoto University

Abstract

Fire resistance of prestressed concrete beams in terms of flexural capacity was investigated. High strength steel such as prestressing steel has a different strength reduction curve under high temperature from ordinary strength steel. The authors conducted tensile tests on prestressing steel bars under high temperature up to 600 degree Celsius. It was revealed from the test results and past research that BS8110 with some modification in the lower temperature range gave a good estimation for strength degradation of prestressing steel bars at elevated temperature. Temperature contours in the beam cross section of a prestressed concrete member was derived based on a simplified equation. The contours agreed well with the one obtained experimentally in past research. Design recommendations for prestressed concrete beams at elevated temperature are included in this paper.

Journal

  • Journal of Structural and Construction Engineering (Transactions of AIJ)

    Journal of Structural and Construction Engineering (Transactions of AIJ) 71(606), 171-178, 2006

    Architectural Institute of Japan

References:  17

Cited by:  1

Codes

  • NII Article ID (NAID)
    110004763723
  • NII NACSIS-CAT ID (NCID)
    AN10438559
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    1340-4202
  • NDL Article ID
    8057154
  • NDL Source Classification
    ZN1(科学技術--建設工学・建設業)
  • NDL Call No.
    Z16-1419
  • Data Source
    CJP  CJPref  NDL  NII-ELS  J-STAGE  AIJ 
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