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Vol. 51 (2010) No. 4 December n. 166


Hangai Prize Papers for 2010: A method for the Damage Assessment of Single-Layer Latticed Shells by Performing Static Stability Analysis Twice

< Table of Contents for Vol. 51 (2010) No. 4 December n. 166
  • Journal Name: Journal of the International Association for Shell and Spatial Structures (J. IASS)
  • ISSN: (Electronic Version) 1996-9015
  • ISSN: (Print Version) 1028-365X
  • Issue: Vol. 51 (2010) No. 4 December n. 166
  • Pages: 281-290
  • Title: Hangai Prize Papers for 2010: A method for the Damage Assessment of Single-Layer Latticed Shells by Performing Static Stability Analysis Twice
  • Author(s): D.-B. Yang, Y.-G. Zhang and J.-Z. Wu
  • Keywords: Single-layer latticed shell, static stability analysis, Damage assessment
Abstract
The static stability capacity is the main index to measure the whole mechanical performance of single-layer latticed shells. A new damage assessment method of single-layer latticed shells was presented by performing static stability analysis once before and once after subjecting the shell to earthquakes, and the damage index is calculated from a perspective of the static stability capacity degradation incurred by earthquakes. The method has a solid theoretical basis and can be easily implemented. Compared with other methods to assess the damage of single-layer latticed shells, the examples show that the method has a high precision especially when the shells near collapse. The method may be also applicable to the damage assessment of single-layer latticed shells subjected to fire and other hazards.

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