Seismic Retrofit of Joints of a Full-Scale 3D Reinforced Concrete Frame with FRP Composites

Cumhur Cosgun*, Mustafa Cömert, Cem Demir, Alper Ilki

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

Postearthquake reconnaissance studies show that the beam-column joints of substandard reinforced concrete buildings (particularly the corner joints) may fail to resist the demanded forces and deformations under severe seismic actions. In this study, the effectiveness of carbon fiber-reinforced polymer (FRP) composites for retrofitting beam-column joints is demonstrated through testing of four full-scale three-dimensional reinforced concrete frames that are representative of substandard reinforced concrete buildings. Additionally, analytical seismic performance predictions made using available seismic assessment and retrofit guidelines are compared with the test results.

Original languageEnglish
Article number04019004
JournalJournal of Composites for Construction
Volume23
Issue number2
DOIs
Publication statusPublished - 1 Apr 2019

Bibliographical note

Publisher Copyright:
© 2019 American Society of Civil Engineers.

Funding

The study presented in this paper was part of a research project titled “Retrofit of beam-column connections using innovative materials,” which was supported by the Scientific and Technological Research Council of Turkey (TUBITAK; Grant No. 106M054) and the Istanbul Technical University Research Fund. The constructive comments of Dr. Sumru Pala and Dr. Ercan Yuksel are gratefully acknowledged. The authors are also thankful for the collaboration of the following material and service suppliers: BASF, ISTON, Betonsa, Art-Yol Engineering, and Kalite Machinery Corporation.

FundersFunder number
TUBITAK106M054
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu
Istanbul Teknik Üniversitesi

    Keywords

    • Beam-column joint
    • Carbon fiber
    • Fabrics/textiles
    • Fiber-reinforced polymer
    • Joints
    • Reinforced concrete
    • Retrofit
    • Seismic
    • Slip

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