3D Finite Element Modeling via Smeared Crack Approach of RC Beams after Exposure to High Temperatures

سال انتشار: 1391
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 2,025

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شناسه ملی سند علمی:

ICCE09_1280

تاریخ نمایه سازی: 7 مهر 1391

چکیده مقاله:

This paper tries to study the effect of previously heated concrete on structural behavior of reinforced concrete beams through three dimensional analyses. In the first part, a constitutive model was developedfor plane concrete heated up to the desired levels. The concrete model developed in VISUAL FORTRANcomputer language follows continuum damage theory to present a damage value separately for each microplane. From the results of concrete model compared with experimental evidences, stress-strain diagrams were extracted under uniaxial compression/tension loading states. The stress-strain curves ofheated concrete have been directly utilized to introduce concrete behavior during non-linear finite element analysis of a reinforced concrete beam. Through the second part, the commercial code ANSYS was incorporated and response of the beam was studied for cracking and nonlinear behavior of steel, concrete.In conclusion crack growth of the beam simulated according to micro-plane model data in different temperatures have been presented

کلیدواژه ها:

Non-linear finite element analysis ، Micro-plane ، Smeared crack approach ، Elastic modulus ، Reinforcement bars

نویسندگان

Amin Amirpour

Department of Civil Engineering, Faculty of Engineering, K. N. T University, Tehran

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  • and strain based continuum damage models-1: Formulation, " Int, Stressه ...
  • o I»tenainal Congress on Civi Engineering, May 8-10, 2012 Isfaha ...
  • Carol, I. and Razzi, E. and William, K. (1994), _ ...
  • Baggio, P. and Majorano, C. E. and Scherfler, B. A. ...
  • Gawin, D. and Majorana, C. E. and Scherfler, B. _ ...
  • Wu, B. and Ma, Z. C. and Ou, J. P. ...
  • Sadrnejad, S. A. (2000), "Principles of plasticity theory in soil, ...
  • Carol, I and Bazant, Z. P. (1997), "Damage and plasticity ...
  • Bazant, Z. P. and Caner, F. C. and Carol, I. ...
  • Carol, I. and Jirasek, M. and Bazant, Z. P. (2001), ...
  • Yousef, M. A. and Moftah, _ (2007), "General stress-strain relationship ...
  • _ Li, L. and Purkiss, J. (2005), "Stress-strain constitutive equations ...
  • Tencheve, R. and Purnell, P. (2005), _ application of a ...
  • Sadrnejad, S. A. (2010), "Numerical modeling for the evaluation of ...
  • Chang, Y. F. and Chen, Y. H. and Sheu, M. ...
  • Felicitti, R.. and Gambarova, P. G. (1998), "On the residual ...
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