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


IASS Symposium 2016

SESSION: Seismic Analysis, Behavior & Design

Study on dynamic characteristics and seismic performances of latticed shell string structure with inner and outer truss

< 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: Study on dynamic characteristics and seismic performances of latticed shell string structure with inner and outer truss
  • Author(s): Yun-long Yao, Guang-ying Ma, Shi-lin Dong
  • Keywords: latticed shell string structure, modal analysis, multi-dimensional seismic excitation, seismic analysis
Abstract
This study proposes a new type of annular space latticed shell string structure with inner and outer truss torus that can reduce the space occupied by the roof structure and be easily laid by a rigid roofing material. Three types of annular space latticed shell string structure, namely, ribbed, sunflower and schwedler patterns, are presented. Ribbed latticed shell string structure with a span of 100 m was taken as an example, the modal analysis and the time-history analysis were performed and the seismic behavior under one-dimensional and multi-dimensional seismic excitations were studied. The effects of the heights of radial cables, the curvatures of latticed shell, the radial supports and the horizontal truss torus on seismic performances of this structure were also investigated. The results revealed some characteristics of modal and earthquake response of the structure. The research results could be referenced by structure designers.

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