Analysis of long-term effects in concrete columns prestressed with FRP tendons

C. C. Choo; I. E. Harik; H. Gesund

Analysis of long-term effects in concrete columns prestressed with FRP tendons

C. C. Choo, I. E. Harik, H. Gesund

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

An analytical investigation was conducted to study the long term effects in the strength interaction (P_n-M_n) behavior of non-slender concrete columns prestressed with fiber reinforced polymer (FRP) tendons. Two long term concrete stress-strain behaviors were used and compared to the instantaneous or short term load. The expressions for the strength interaction of FRP prestressed concrete columns are derived from the strain compatibility and equilibrium conditions and are presented herein. Based on this preliminary investigation, it was concluded that the long term loadings and the tensile creep rupture of FRP tendons considerably influence the column strength. The results of the column cross sections considered herein show that disregarding long term effects may be conservative provided that rupture of FRP tendons does not occur in the columns.

Original language	English
Title of host publication	Case Histories and Use of FRP for Prestressing Applications
Publisher	American Concrete Institute
Pages	21-36
Number of pages	16
ISBN (Electronic)	9780870312434
State	Published - Apr 1 2007
Event	2006 Symposium on Case Histories and Use of FRP for Prestressing Applications - Denver, United States Duration: Nov 8 2006 → …

Publication series

Name	American Concrete Institute, ACI Special Publication
Volume	SP-245
ISSN (Print)	0193-2527

Conference

Conference	2006 Symposium on Case Histories and Use of FRP for Prestressing Applications
Country/Territory	United States
City	Denver
Period	11/8/06 → …

Bibliographical note

Publisher Copyright:
© 2007 American Concrete Institute. All rights reserved.

Keywords

Concrete columns
FRP tendons
Long term loads
Non-slender
Prestressing
Tensile rupture
Ultimate load

ASJC Scopus subject areas

Civil and Structural Engineering
Building and Construction
General Materials Science

Cite this

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title = "Analysis of long-term effects in concrete columns prestressed with FRP tendons",

abstract = "An analytical investigation was conducted to study the long term effects in the strength interaction (Pn-Mn) behavior of non-slender concrete columns prestressed with fiber reinforced polymer (FRP) tendons. Two long term concrete stress-strain behaviors were used and compared to the instantaneous or short term load. The expressions for the strength interaction of FRP prestressed concrete columns are derived from the strain compatibility and equilibrium conditions and are presented herein. Based on this preliminary investigation, it was concluded that the long term loadings and the tensile creep rupture of FRP tendons considerably influence the column strength. The results of the column cross sections considered herein show that disregarding long term effects may be conservative provided that rupture of FRP tendons does not occur in the columns.",

keywords = "Concrete columns, FRP tendons, Long term loads, Non-slender, Prestressing, Tensile rupture, Ultimate load",

author = "Choo, {C. C.} and Harik, {I. E.} and H. Gesund",

note = "Publisher Copyright: {\textcopyright} 2007 American Concrete Institute. All rights reserved.; 2006 Symposium on Case Histories and Use of FRP for Prestressing Applications ; Conference date: 08-11-2006",

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Choo, CC, Harik, IE & Gesund, H 2007, Analysis of long-term effects in concrete columns prestressed with FRP tendons. in Case Histories and Use of FRP for Prestressing Applications. American Concrete Institute, ACI Special Publication, vol. SP-245, American Concrete Institute, pp. 21-36, 2006 Symposium on Case Histories and Use of FRP for Prestressing Applications, Denver, United States, 11/8/06.

Analysis of long-term effects in concrete columns prestressed with FRP tendons. / Choo, C. C.; Harik, I. E.; Gesund, H.
Case Histories and Use of FRP for Prestressing Applications. American Concrete Institute, 2007. p. 21-36 (American Concrete Institute, ACI Special Publication; Vol. SP-245).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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T1 - Analysis of long-term effects in concrete columns prestressed with FRP tendons

AU - Choo, C. C.

AU - Harik, I. E.

AU - Gesund, H.

PY - 2007/4/1

Y1 - 2007/4/1

N2 - An analytical investigation was conducted to study the long term effects in the strength interaction (Pn-Mn) behavior of non-slender concrete columns prestressed with fiber reinforced polymer (FRP) tendons. Two long term concrete stress-strain behaviors were used and compared to the instantaneous or short term load. The expressions for the strength interaction of FRP prestressed concrete columns are derived from the strain compatibility and equilibrium conditions and are presented herein. Based on this preliminary investigation, it was concluded that the long term loadings and the tensile creep rupture of FRP tendons considerably influence the column strength. The results of the column cross sections considered herein show that disregarding long term effects may be conservative provided that rupture of FRP tendons does not occur in the columns.

AB - An analytical investigation was conducted to study the long term effects in the strength interaction (Pn-Mn) behavior of non-slender concrete columns prestressed with fiber reinforced polymer (FRP) tendons. Two long term concrete stress-strain behaviors were used and compared to the instantaneous or short term load. The expressions for the strength interaction of FRP prestressed concrete columns are derived from the strain compatibility and equilibrium conditions and are presented herein. Based on this preliminary investigation, it was concluded that the long term loadings and the tensile creep rupture of FRP tendons considerably influence the column strength. The results of the column cross sections considered herein show that disregarding long term effects may be conservative provided that rupture of FRP tendons does not occur in the columns.

KW - Concrete columns

KW - FRP tendons

KW - Long term loads

KW - Non-slender

KW - Prestressing

KW - Tensile rupture

KW - Ultimate load

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Analysis of long-term effects in concrete columns prestressed with FRP tendons

Abstract

Publication series

Conference

Bibliographical note

Keywords

ASJC Scopus subject areas

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Cite this