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گواهی نمایه سازی مقاله APPLICATION OF EXPANSIVE AGENT (EA) TO PRODUCE POST TENSIONING FORCE IN FRP JACKETS FOR LATERAL RETROFITTING OF RC COLUMNS

عنوان مقاله: APPLICATION OF EXPANSIVE AGENT (EA) TO PRODUCE POST TENSIONING FORCE IN FRP JACKETS FOR LATERAL RETROFITTING OF RC COLUMNS
شناسه (COI) مقاله: ICCD03_061
منتشر شده در سومین کنفرانس بین المللی بتن و توسعه در سال ۱۳۸۸
مشخصات نویسندگان مقاله:

A.A Mortazavi - Associate professor, Power and Water University of Technology, Tehran, Iran
M Jalal - M.Sc. Student, Dept of civil Engg. School of Engg Razi University, Kermanshah, Iran
M.M Khodaparast - B.Sc., Power and Water University of Technology, Tehran, Iran

خلاصه مقاله:
Repair and strengthening of RC structures using FRP materials is one of the new and effective techniques ever used. With this respect, strengthening of structural elements by external lateral confinement can lead to increased strength and ductility. In this way, using an efficient and optimized method for lateral confinement is of great importance. A novel, economic and simple technique for the repair and strengthening of RC members by means of expansive agent(EA) to produce post tensioning force, has been proven to perform well following experimental work undertaken at the University of Sheffield. The aim of the technique is to ensure the enhancement of the member strength and ductility by localized strengthening. The above technique is equivalent to increasing the effectiveness of the composite confinement and it becomes possible to strengthen large columns with smaller amounts of composites, which are utilized earlier at much higher strengths. In addition, the level of axial strain achieved at failure is improved significantly. The paper will present details of experimental work with different types of confining material (glass and carbon), amounts of reinforcement and levels of initial prestressing.

کلمات کلیدی:
strengthening, expansive agent, post tensioning, FRP jacket

صفحه اختصاصی مقاله و دریافت فایل کامل: https://www.civilica.com/Paper-ICCD03-ICCD03_061.html