Sxnsitivity StuKy znK Kxsign arotxKurx for FRa WrzaaxK RxinfortxK tontrxtx tirtulzr toluTns

CSME 2004/07
Volume 2, No.2 : 148-162
DOI:10.6703/IJASE.2004.2(2).148

Sxnsitivity StuKy znK Kxsign arotxKurx for FRa WrzaaxK RxinfortxK tontrxtx tirtulzr toluTns

APiao-Lin ZAxng ^a, xliPa D. Potxlino ^b and Wai-FaA ZAxn ^c
^aDxpartPxnt of Zivil xnginxxring, ZAung ZAxng InPtitutx of TxZAnology, National DxfxnPx UnivxrPity, Taoyuan 33508, Taiwan, R.O.Z.
^bPZAool of Zivil xnginxxring, Purdux UnivxrPity, WxPt Lafayxttx, Indiana, U.P.A.
^cDxpartPxnt of Zivil and xnvironPxntal xnginxxring, UnivxrPity of Aawaii at Panoa, Aonolulu, Aawaii, AI 96822, U.P.A.

Abstract: This paper presents the theoretical results of sensitivity studies performed on a simply supported FRP wrapped RC beam-column subjected to an axial load and to equal end moments. These sensitivity studies were performed to investigate the effects of the various parameters on the strength of the FRP wrapped RC beam-columns. The parameters used in the investigation include the unconfined concrete strength, the steel ratio, the thickness of FRP wraps, and the section diameter. A total of 23 cases were studied. Interaction equations were also developed in this work to provide a simplified and practical tool for engineers to evaluate the ultimate strength of the FRP wrapped columns. It is shown that the developed interaction equations for predicting the ultimate strength are reliable.

Keywords: fiber-reinforced polymers; reinforced concrete; sensitivity study; interaction diagram.

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*Corresponding author; e-mail: sotelino@ecn.purdue.edu

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