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Numerical study of progressive collapse in reinforced concrete frames with FRP under column removal

  • Esfandiari, J. (Department of Civil Engineering, Kermanshah Branch, Islamic Azad University) ;
  • Latifi, M.K. (Department of Civil Engineering, Kermanshah Branch, Islamic Azad University)
  • Received : 2019.03.04
  • Accepted : 2019.05.13
  • Published : 2019.11.25

Abstract

Progressive collapse is one of the factors which if not predicted at the time of structure plan; its occurrence will lead to catastrophic damages. Through having a glance over important structures chronicles in the world, we will notice that the reason of their collapse is a minor damage in structure caused by an accident like a terrorist attack, smashing a vehicle, fire, gas explosion, construction flaws and its expanding. Progressive collapse includes expanding rudimentary rupture from one part to another which leads to total collapse of a structure or a major part it. This study examines the progressive collapse of a 5-story concrete building with three column eliminating scenarios, including the removal of the corner, side and middle columns with the ABAQUS software. Then the beams and the bottom of the concrete slab were reinforced by (reinforcement of carbon fiber reinforced polymer) FRP and then the structure was re-analyzed. The results of the analysis show that the reinforcement of carbon fiber reinforced polymer sheets is one of the effective ways to rehabilitate and reduce the progressive collapse in concrete structures.

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