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


IASS Symposium 2016

SESSION: Metal Spatial Structures

Study on analysis method for behavior of single-layer reticulated domes subjected to external blast loading

< Table of Contents for Metal Spatial Structures
  • Proceedings Name: IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century
  • ISSN: (Electronic Version) 2518-6582
  • Session: Metal Spatial Structures
  • Pages: 8
  • Title: Study on analysis method for behavior of single-layer reticulated domes subjected to external blast loading
  • Author(s): Xudong Zhi, Shaobo Qi, Qingwu Shao, Feng Fan
  • Keywords: long-span spatial structures, blast loading, scaled-down experiments, failure modes, AUTODYN
Abstract
Long-span spatial structures are commonly used as landmarks of modern cities and can be potential targets of terrorist attacks. Because of this risk, it is important to study the dynamic behavior of spatial structures under blast actions. The aims of this paper are to (i) test the accuracy of the numerical approach for simulation of structural dynamic responses based on the explicit dynamic finite element software AUTODYN, (ii) verify the existence of failure modes of single-layer reticulated domes under external blast loading using numerical analysis based on scaled-down experimental results (iii) compare and evaluate several numerical simulation methods for studying the dynamic responses of domes under external blast loading. Our main finding is that the damage conditions of the single-layer reticulated dome under external blast loading can be well-predicted and multi-parameter analysis can be performed using an adaptive range of different numerical simulation methods.

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