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Effect of lateral structural systems of adjacent buildings on pounding force

  • Kheyroddin, Ali ;
  • Kioumarsi, Mahdi ;
  • Kioumarsi, Benyamin ;
  • Faraei, Aria
  • Received : 2017.06.12
  • Accepted : 2018.02.12
  • Published : 2018.03.25

Abstract

Under strong ground motion, pounding can be caused because of the different dynamic properties between two adjacent buildings. Using different structural systems in two adjacent structures makes a difference in the lateral stiffness and thus changes the pounding force between them. In this paper, the effect of the structural system of adjacent buildings on the amount of force applied by pounding effects has been investigated. Moment resisting frame systems (MRFs), lateral X-bracing system (LBS), shear wall system (SWS) and dual system (DS) have been investigated. Four different cases has been modelled using finite element (FE) method. The number of stories of the two adjacent buildings is different in each case: case 1 with 6 and 4 stories, case 2 with 9 and 6 stories, case 3 with 15 and 6 stories and case 4 with 10 and 10 stories. The structures have been modelled three-dimensionally. Non-linear time history analysis has been done on the structures using the finite element software SAP2000. In order to model pounding effects, the non-linear gap elements have been used.

Keywords

pounding effects;structural systems;time history analysis

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