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IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century


IASS Symposium 2016

SESSION: Seismic Analysis, Behavior & Design

Design and Construction of Tension Structure on Viscoelastic Dampers directly connected to Tension Strings

< Table of Contents for Seismic Analysis, Behavior & Design
  • Proceedings Name: IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century
  • ISSN: (Electronic Version) 2518-6582
  • Session: Seismic Analysis, Behavior & Design
  • Pages: 10
  • Title: Design and Construction of Tension Structure on Viscoelastic Dampers directly connected to Tension Strings
  • Author(s): Akira Morita, Yoshinao Konishi, Lei Xu
  • Keywords: tension strings, effective mass ratio, energy dissipative brace, viscoelasticity, disc spring
Abstract
In this report, gymnasium roof is a gable shape structure. This is the compound structure which Beam String Structure resists the load in the vertical direction and energy dissipative brace resist the load in the horizontal direction. This paper analyzes damper effect of steel roof with dampers composed of viscoelasticity and disc spring. These dampers are installed vertically against the energy dissipative braces to reduce the response to earthquake and the fatigue caused by wind. Tension strings such as cable or rod have the additional stiffness function as a compression member by sustaining initial tension. When dampers are placed vertically, it is necessary to use a mechanism capable of holding the initial tension of the tension strings. Therefore, the disc spring was chosen to retain the initial tension. The viscoelasticity is used for the damper effect. This report verified Viscoelastic Dampers.

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