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

سال انتشار: 1388
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 2,239

فایل این مقاله در 7 صفحه با فرمت PDF قابل دریافت می باشد

استخراج به نرم افزارهای پژوهشی:

لینک ثابت به این مقاله:

شناسه ملی سند علمی:

ICCD03_061

تاریخ نمایه سازی: 20 مهر 1387

چکیده 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.

نویسندگان

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

مراجع و منابع این مقاله:

لیست زیر مراجع و منابع استفاده شده در این مقاله را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود مقاله لینک شده اند :
  • Mortazavi A., ،، S trengthening, ductility and repair of RC ...
  • Weber & Broutin Ltd., En-Force strength in construction, SBD, 1999, ...
  • Pilakoutas K., *Ductility design of reinforced concrete members?, 16th European ...
  • Eurocode No 8, "Design provisions for earthquake resistance _ structures", ...
  • نمایش کامل مراجع