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


IASS Symposium 2016

SESSION: Seismic Analysis, Behavior & Design

Influence of half open angle of cylindrical lattice shell roofs on seismic response control effects by plural TMDs

< 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: Influence of half open angle of cylindrical lattice shell roofs on seismic response control effects by plural TMDs
  • Author(s): Takuya Shimoyama, Tomohiko Kumagai, Toshiyuki Ogawa
  • Keywords: cylindrical lattice shell roof, half open angle, plural TMDs, response spectrum analysis, horizontal earthquake motion, response reduction effect, energy absorption, parallel multi-mass system
Abstract
TMD is fit for the vibration control of spatial structure because it is possible to install TMDs by a single supporting point. However, there are few studies dealing with the vibration control of spatial structures by installing a plurality of TMDs which target a single mode for plural modes. Moreover, influence of half open angles of cylindrical lattice shell roofs on vibration control effects by plural TMDs have never been examined. Therefore, this paper is intended as an investigation of seismic response reduction effects by plural TMDs for cylindrical lattice shell roofs which have different half open angles. First, the selection method of controlled modes is proposed. Next, the response reduction effects by plural TMDs for cylindrical lattice shell roofs which have different half open angles are examined. Finally, the response estimation by energy absorption of TMDs is attempted.

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