Inelastic dynamic analysis of two industrial structures

  • D. L. Dutchison Ministry of Works and Development, Wellington, New Zealand
  • D. D. Spurr Ministry of Works and Development, Wellington, New Zealand

Abstract

The earthquake effects on two structures supporting steam generation plant at the New Zealand Forest Service Waipa State Mill were examined using an inelastic dynamic analysis computer program. The geometry and structure of the plant and support systems indicated that the equivalent static method would not be appropriate for analysis. One of the support structures incorporated axial energy dissipating devices and performance of these was confirmed by testing of a full-scale prototype. The second structure was characterised by an unsymmetrical distribution of stiffness. An equivalent two-dimensional representation of the structure plan was analysed to assess the effect of torsion on the inelastic response to seismic loading.

References

NZS 4203:1984, "Code of Practice for General Structural Design and Design Loadings for Buildings", Standards Association of New Zealand, December 1984.

Thurston, S.J., "Cyclic Loading of Vallourec Bar Test Specimen", Unpublished MWD Central Laboratories Report, 1979.

Tyler, R.G. and Heine, A.J., "Tests on an Axially Loaded Steel Energy Absorber", Bulletin of the New Zealand National Society for Earthquake Engineering, Vol. 17, No. 1, March 1984.

Powell, G.H., "Drain - 2D Users Guide", EERC 73-22, University of California, Berkeley, 1973.

Jacks, D.H., "Testing of Waipa Sawmill Energy Dissipators", Structures Section Report, MWD Central Laboratories, December 1984.

Spurr, D.D., "Application of Axially Loaded Steel Energy Dissipators in a Boiler Support Structure", Research and Development Report 86/1, Office of the Chief Structural Engineer, Ministry of Works and Development, March 1986.

Published
1986-06-30
How to Cite
Dutchison, D. L., & Spurr, D. D. (1986). Inelastic dynamic analysis of two industrial structures. Bulletin of the New Zealand Society for Earthquake Engineering, 19(2), 83-92. https://doi.org/10.5459/bnzsee.19.2.83-92
Section
Articles