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Optimal Placement of Mega-Brace Dampers for Integrated Seismic Design of Super Tall Building Structures

 Optimal Placement of Mega-Brace Dampers for Integrated Seismic Design of Super Tall Building Structures
Auteur(s): ,
Présenté pendant IABSE Congress: Challenges in Design and Construction of an Innovative and Sustainable Built Environment, Stockholm, Sweden, 21-23 September 2016, publié dans , pp. 1047-1053
DOI: 10.2749/stockholm.2016.1034
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Super tall buildings are commonly controlled by earthquake in high seismicity area. Viscous dampers have been widely applied in seismic design of tall buildings to mitigate the seismic responses of...
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Détails bibliographiques

Auteur(s): (PhD, Senior Engineer, Department of Structural Engineering, Tongji University Tongji Architectural Design (Group) Co., Ltd. Shanghai, China)
(Tongji University, Shanghai, China)
Médium: papier de conférence
Langue(s): anglais
Conférence: IABSE Congress: Challenges in Design and Construction of an Innovative and Sustainable Built Environment, Stockholm, Sweden, 21-23 September 2016
Publié dans:
Page(s): 1047-1053 Nombre total de pages (du PDF): 7
Page(s): 1047-1053
Nombre total de pages (du PDF): 7
Année: 2016
DOI: 10.2749/stockholm.2016.1034
Abstrait:

Super tall buildings are commonly controlled by earthquake in high seismicity area. Viscous dampers have been widely applied in seismic design of tall buildings to mitigate the seismic responses of super tall buildings. The energy dissipation capacity of viscous damper system is highly related to the damper configuration. Mega-brace damper system is one of the deformation amplification configurations, which can amplify the story deformation under earthquake. The mega braces can be flexibly arranged according to the building brace configuration. The installation of mega-brace dampers will cause the stiffness loss of primitive stiff mega braces. The optimal placement of mega-brace dampers will comprehensively consider the maximizing of energy dissipation capacity and the minimizing of stiffness reduction. This paper proposes an optimal placement method of mega-brace dampers which can satisfy both requirements. A real super tall building project will be employed to illustrate the applicability and effectiveness of the proposed optimal placement method for the mega-brace dampers.