Computers and Concrete

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Finite element analysis of RC walls with different geometries under impact loading

  • Husem, Metin (Department of Civil Engineering, Karadeniz Technical University) ;
  • Cosgun, Suleyman I. (Department of Civil Engineering, Karadeniz Technical University) ;
  • Sesli, Hasan (Department of Civil Engineering, Karadeniz Technical University)
  • Received : 2017.10.25
  • Accepted : 2018.01.29
  • Published : 2018.05.25
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Abstract

Today, buildings are exposed to the effects such as explosion and impact loads. Usually, explosion and impact loads that act on the buildings such as nuclear power plants, airports, defense industry and military facilities, can occur occasionally on the normal buildings because of some reasons like drop weight impacts, natural gas system explosions, and terrorist attacks. Therefore, it has become important to examine the behavior of reinforced concrete (RC) structures under impact loading. Development of computational mechanics has facilitated the modeling of such load conditions. In this study, three kinds of RC walls that have different geometric forms (square, ellipse, and circle) and used in guardhouses with same usage area were modeled with Abaqus finite element software. The three configurations were subjected to the same impact energy to determine the geometric form that gives the best behavior under the impact loading. As a result of the analyses, the transverse impact forces and failure modes of RC walls under impact loading were obtained. Circular formed (CF) reinforced concrete wall which has same impact resistance in each direction had more advantages. Nonetheless, in the case of the impact loading occurring in the major axis direction of the ellipse (EF-1), the elliptical formed reinforced concrete wall has higher impact resistance.

Keywords

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