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گواهی نمایه سازی مقاله PERFORMANCE INVESTIGATION OF RC SHORT COLUMNS RETROFITTED WITH FRP COMPOSITES IN PASSIVE & ACTIVE STATES

عنوان مقاله: PERFORMANCE INVESTIGATION OF RC SHORT COLUMNS RETROFITTED WITH FRP COMPOSITES IN PASSIVE & ACTIVE STATES
شناسه (COI) مقاله: ICCD03_092
منتشر شده در سومین کنفرانس بین المللی بتن و توسعه در سال ۱۳۸۸
مشخصات نویسندگان مقاله:

G Ghodrati Amiri - Professor, Center of Excellence for Fundamental Studies in Structural Engineering, School of Civil Engineering, Iran University of Science & Technology, Tehran, Iran
A Emdadi - M.Sc., Azad Islamic University, South Branch, Tehran, Iran
A Emdadi - M.Sc., Azad Islamic University, South Branch, Tehran, Iran
H. Hamidi Jamnani - PhD Candidate, School of Civil Engineering, Iran University of Science & Technology, Tehran, Iran

خلاصه مقاله:
Short columns and columns having weakness in transverse reinforcement have shown inappropriate behaviour in confronting with shear forces during different earthquakes and the shear failure mode of these columns is the main failure mode. One of the most conventional methods for improving the behaviour of these columns is the application of wrapped FRP jacket. These FRP jackets are lightweight, high strength and have a convenient installation process. These jackets can be utilized both in active and passive states. In this study, weak and retrofitted columns have been modelled using “Seismostruct” software and have been compared with experimental conclusions as well. In passive retrofitted specimens, the improvement in value of energy dissipation observed was about 1.7 to 4 times greater than control specimens. Furthermore, drift angle was increased about 1.4 to 2.5 times greater. Moreover, active retrofitted specimens have emonstrated a better behaviour than passive ones. In most of the specimens the growth was about 20% and 30 to 40 percent in shear strength and quantity of energy dissipation, respectively. Finally, AFRP composites have demonstrated higher ductility than CFRP composites, despite the fact that the shear strength of CFRP was higher than AFRP type.

کلمات کلیدی:
AFRP, CFRP, confinement, fibre analysis, drift angle, wrapped jackets

صفحه اختصاصی مقاله و دریافت فایل کامل: https://www.civilica.com/Paper-ICCD03-ICCD03_092.html