An artificial neural network (ANN) model for predicting themoment-rotation of exterior RC beam–column jointsstrengthened by CFRP composites

سال انتشار: 1394
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 914

فایل این مقاله در 12 صفحه با فرمت PDF و WORD قابل دریافت می باشد

این مقاله در بخشهای موضوعی زیر دسته بندی شده است:

استخراج به نرم افزارهای پژوهشی:

لینک ثابت به این مقاله:

شناسه ملی سند علمی:

CESCM06_009

تاریخ نمایه سازی: 14 آذر 1394

چکیده مقاله:

In the design of the ordinary moment resisting frame to form plastic hinges in beams, the principle ofweak-beam strong-column is used. Nevertheless, the plastic hinges take form in the beam and thevicinity of the column, the relocation of the plastic hinges is an adequate approach to increase theperformance of the joint and also the structure. One of the methods to achieve this goal is strengtheningthe joints with FRP material. Joints in real structures deal with some limitation, such as sides beamswhich are connected to the joints at the floor level. These conditions make some problems to strengthenthe joints. Therefore, the configuration of FRP application is considered in the form of L-shaped at thetop and bottom beam, wrapping for beam and wrapping for the columns. Also the specification ofmoment-rotation of the joint strengthened with FRP is a necessity to determine the effects ofstrengthened joints on nonlinear modeling of the frame. In this study, two types of external RC jointsare examined. The first category of joints that based on ACI-318 was designed for the moderateductility. The second category is similar to the first joints, but to improve the behavior joints CFRPsheets was used. After the numerical model of joint was confirmed by experimental model, a total of216 connections under monotonic load is simulated. Since the numeric modeling of the joint is a verytime consuming and expensive procedure, therefore training of a neural network to predict the momentrotationof the strengthened joint with FRP is another necessity. In this research, two neural networksare trained to predict the moment-rotation curves of the original joints and the strengthened joint usingthe moment-rotation curves of these joints. The results show moment-rotation curves obtained from thenumerical modeling and moment-rotation curves obtained from the neural networks have acceptableaccuracy.

نویسندگان

H Akbarzadeh Bengar

Department of Civil Engineering, University of Mazandaran, Babolsar, Iran

J Shayanfar

Department of Civil Engineering, University of Mazandaran, Babolsar, Iran

S.M Seyedpoor

Department of Civil Engineering, Shomal University, Amol, 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 :
  • Di Ludovico M, Prota A, Manfredi G, Cosenza, E. Seismic ...
  • Mahini SS, Ronagh HR. Web-bonded FRPs for relocation of plastic ...
  • Mostofinejad D, and Talaeitaba, SB. Finite element modeling of RC ...
  • Niroomandi A, Maheri A, Maheri MR, Mahini SS. Seismic performance ...
  • Gholizadeh S, Pirmoz A, Attarnejad R. Assessment of load carrying ...
  • ACI committee 318 Building code requirements for structural concrete (ACI ...
  • Mander JB, Priestley MJN, Park R. Theoretical stress-strain behavior of ...
  • Permanent committee for revising the Iranian code for seismic resistant ...
  • ACI 440.2R-08. ACI Committee 440-02. Guide for the design and ...
  • ABAQUS analysis user's manual version 6.10, 2010. ...
  • نمایش کامل مراجع