THE EFFECT OF MULTI LAYERS OF CFRP ON LOADING CAPACITY OF STRENGTHENED REINFORCED CONCRETE BEAMS BY EBROG METHOD AND COMPARING IT BY USING ONE LAYER OF AFRP

  • سال انتشار: 1394
  • محل انتشار: هفتمین کنفرانس بین المللی زلزله شناسی و مهندسی زلزله
  • کد COI اختصاصی: SEE07_407
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 334
دانلود فایل این مقاله

نویسندگان

Bamshad SADJADI MANIZANI

Student, Islamic Azad University Eslamshahr Branch, Tehran, Iran

Shahriar TAVOUSI TAFRESHI

Assistant Professor, Islamic Azad University Central Tehran Branch, Tehran, Iran

Abbas AKBARPOUR NIKGHALB

Assistant Professor, Islamic Azad University South Tehran Branch, Tehran, Iran

چکیده

Externally Bonded Reinforcement On Grooves (EBROG) is a new promising method that has been introduced at Isfahan University of Technology (IUT) to postpone or eliminate debonding of FRP sheets from concrete surface in concrete beams strengthened for flexure. Experiments have shown that the probability of debonding when attached to concrete substrate using EBROG method is much lower than the other methods; and in some cases debonding is completely eliminated. The aim of the current study is to examine the efficacy of grooving method when used under multilayer CFRP sheets analytical and comparing it with the results of one layer of AFRP. For this purpose, beam specimens with dimension 120*140*1000 mm were modeled in ABAQUS program. We assigned concrete damage plasticity for concrete, and fully elasto-plastic for both steel and CFRP and AFRP. We use dynamic,explicit analysis and meshed the specimens by o.o2m size. The interaction between mesh bar and concrete beam was embedded and interaction between CFRP, AFRP and concrete beam was tie. Using mesh bar is related to preventing any shear failure . Finally, the results shown that using 3 layers of CFRP is much better than 1 layer of AFRP . The rate of increment loading capacity is about 51.85 percent .

کلیدواژه ها

Aramid Fiber Reinforced Polymer ( AFRP ) , strengthening , debonding , Externally Bonded Reinforcement On Grooves ( EBROG ) , ABAQUS program

مقالات مرتبط جدید

اطلاعات بیشتر در مورد COI

COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.

کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.