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


IASS Symposium 2016

SESSION: Plenary Lectures

Overview of analysis schemes for buckling strength, seismic resistance and reliability index of reticulated shells

< Table of Contents for Plenary Lectures
  • Proceedings Name: IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century
  • ISSN: (Electronic Version) 2518-6582
  • Session: Plenary Lectures
  • Pages: 24
  • Title: Overview of analysis schemes for buckling strength, seismic resistance and reliability index of reticulated shells
  • Author(s): Shiro Kato
  • Keywords: reticulated shell, buckling, snow load, seismic capacity, failure, reliability index, global load factor
Abstract
The present overview concerns, first, an analysis scheme for buckling load of column based on Dunkerley formula where plastic load and elastic buckling load are both applied. Second, the scheme is extended to reticulated shells under static loads. Third, the discussion is also extended to evaluate the seismic resistance considering the effects of dynamic responses. Fourth, the overview focusses an approximate scheme to evaluate probability distributions, average and standard deviation, for both the elasto-plastic bucklnig load and seismic resistance. Fifth, a numerical scheme, AFOSM, is adopted to numeriaclly calculate the values of failure probability of both buckling under snow loads and collapse due to severe earthquake motions. Finally, questuions about relationship between reliability index and global snow load factor are aroused by showing an imcompatible situation of studies for reticulated shells, followed by necessity of risk analysis to secure the function of facilities during and after severe earthquakes.

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