Earthquakes and Structures

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Seismic retrofitting of a tower with shear wall in UHPC based dune sand

  • Trabelsi, Abderraouf (Universite de Tunis El Manar, Ecole Nationale d'Ingenieurs de Tunis) ;
  • Kammoun, Zied (Universite de Tunis El Manar, Ecole Nationale d'Ingenieurs de Tunis) ;
  • Beddey, Aouicha (Centre d'Etudes Techniques et d'Essais de Construction (C.E.T.E.C))
  • Received : 2016.11.04
  • Accepted : 2017.05.28
  • Published : 2017.06.25
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Abstract

To prevent or limit the damage caused by earthquakes on existing buildings, several retrofitting techniques are possible. In this work, an ultra high performance concrete based on sand dune has been formulated for use in the reinforcement of a multifunctional tower in the city of Skikda in Algeria. Tests on the formulated ultra high performance concrete are performed to determine its characteristics. A nonlinear dynamic analysis, based on the "Pushover" method was conducted. The analysis allowed an optimization of the width of reinforced concrete walls used in seismic strengthening. Two types of concrete are studied, the ordinary concrete and the ultra high performance concrete. Both alternatives are compared with the reinforcement with carbon fibers and by base isolation retrofit design.

Keywords

References

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