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Numerical modeling of concrete beams strengthened by ironbased shape memory alloys embedded in a shotcrete layer

Credit to Download: 1 | Page Numbers 11 | Abstract Views: 366
Year: 2015
COI code: CEUCONF03_527
Paper Language: English

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Authors Numerical modeling of concrete beams strengthened by ironbased shape memory alloys embedded in a shotcrete layer

  Neda Dolatabadi - School of Civil Engineering, University of Tehran, Iran
Moslem Shahverdi - Empa, Swiss Federal Laboratories for Materials Science and Technology, Switzerland
  Masoud Motavalli - School of Civil Engineering, University of Tehran, Iran
  Mehdi Ghassemieh - School of Civil Engineering, University of Tehran, Iran

Abstract:

Shape memory alloys are a group of materials which, due to their unique features such as shape memory effect and pseudo-elasticity,have been widely used in civil engineering applications like active and passive control of structures, sensing and actuating,and strengtheningRC structures. Iron-based shape memory alloys have gained extensive attention during recent years. The aim of this paper is to model and analyze the behavior of RC beams strengthened and pre-stressed with a special class of these alloys invented atEmpalaboratories in Switzerland. By using this method of pre-stressing, there are no friction losses and no space is required for hydraulic jacks.Finite element analyses havebeen performed on the 3D beam modelsin the commercial finite element code ABAQUS, employingthe concrete damaged plasticity modelto predict the load –displacement response of the beams.Results of the finite element analysisagreed wellwith the experimental data in terms of the cracking load and the ultimate load capacityof the beams.

Keywords:

shape memory alloys, strengthening, finite element

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COI code: CEUCONF03_527

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Dolatabadi, Neda; Moslem Shahverdi; Masoud Motavalli & Mehdi Ghassemieh, 2015, Numerical modeling of concrete beams strengthened by ironbased shape memory alloys embedded in a shotcrete layer, 3RD national conference on applied research in civil engineering, architecture and urban management, تهران, دانشگاه صنعتي خواجه نصيرالدين طوسي, https://www.civilica.com/Paper-CEUCONF03-CEUCONF03_527.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Dolatabadi, Neda; Moslem Shahverdi; Masoud Motavalli & Mehdi Ghassemieh, 2015)
Second and more: (Dolatabadi; Shahverdi; Motavalli & Ghassemieh, 2015)
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Type: state university
Paper No.: 55532
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