REPAIR OF EARTHQUAKE-DAMAGED SQUARE R/C COLUMNS WITH GLASS FIBER-REINFORCED POLYMER

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ESHGHI S.; ZANJANIZADEH V.

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Journal Paper

Paper Information

Journal: INTERNATIONAL JOURNAL OF CIVIL ENGINEERING Year:2007 | Volume:5 | Issue:3 Page(s): 210-223

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Title

REPAIR OF EARTHQUAKE-DAMAGED SQUARE R/C COLUMNS WITH GLASS FIBER-REINFORCED POLYMER

Author(s)

ESHGHI S. | ZANJANIZADEH V. | Issue Writer Certificate

Keywords

COLUMNS

GFRP

EARTHQUAKE DAMAGE

REPAIR

HYSTERETIC RESPONSE

DUCTILITY

Abstract

This paper presents an experimental study on seismic REPAIR of damaged square reinforced concrete COLUMNS with poor lap splices, 90-degree hooks and widely spaced transverse bars in plastic hinge regions according to ACI detailing (pre.1971) and (318-02) using GFRP wraps. Three specimens were tested in “as built” condition and retested after they were REPAIRed by glass fiber-reinforced plastic sheets. They were tested under numerous reversed lateral cyclic loading with a constant axial load ratio. FRP composite wraps were used for REPAIRing of concrete COLUMNS in critically stressed areas near the column footings. Physical and mechanical properties of composite wraps are described. Seismic performance and DUCTILITY of the REPAIRed COLUMNS in terms of the HYSTERETIC RESPONSE are evaluated and compared with those of the original COLUMNS. The results indicated that GFRP wraps can be an effective REPAIR measure for poorly confined R/C COLUMNS due to short splice length and widely spaced ties with 90-degree anchorage hooks. Both flexural strength and DUCTILITY of REPAIRed COLUMNS were improved by increasing the existing confinement in critical regions of them.

Cites

FINITE ELEMENT MODELING OF THE DYNAMIC RESPONSE OF A COMPOSITE REINFORCED CONCRETE BRIDGE FOR STRUCTURAL HEALTH MONITORING

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APA: Copy

ESHGHI, S., & ZANJANIZADEH, V.. (2007). REPAIR OF EARTHQUAKE-DAMAGED SQUARE R/C COLUMNS WITH GLASS FIBER-REINFORCED POLYMER. INTERNATIONAL JOURNAL OF CIVIL ENGINEERING, 5(3), 210-223. SID. https://sid.ir/paper/271757/en

Vancouver: Copy

ESHGHI S., ZANJANIZADEH V.. REPAIR OF EARTHQUAKE-DAMAGED SQUARE R/C COLUMNS WITH GLASS FIBER-REINFORCED POLYMER. INTERNATIONAL JOURNAL OF CIVIL ENGINEERING[Internet]. 2007;5(3):210-223. Available from: https://sid.ir/paper/271757/en

IEEE: Copy

S. ESHGHI, and V. ZANJANIZADEH, “REPAIR OF EARTHQUAKE-DAMAGED SQUARE R/C COLUMNS WITH GLASS FIBER-REINFORCED POLYMER,” INTERNATIONAL JOURNAL OF CIVIL ENGINEERING, vol. 5, no. 3, pp. 210–223, 2007, [Online]. Available: https://sid.ir/paper/271757/en

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