What Controls the Ultimate Load of a Glulam Dome?

by S. M. Holzer, (M.ASCE), Virginia Polytechnic Inst and State, Univ, Blacksburg, United States,
S. A. Kavi, Virginia Polytechnic Inst and State, Univ, Blacksburg, United States,
S. Tongtoe, Virginia Polytechnic Inst and State, Univ, Blacksburg, United States,
J. D. Dolan, (M.ASCE), Virginia Polytechnic Inst and State, Univ, Blacksburg, United States,



Document Type: Proceeding Paper

Part of: Spatial, Lattice and Tension Structures

Abstract:

A glulam dome is analyzed with the finite element method to determine the governing failure mode and ultimate snow loads. The dome consists of a triangulated network of curved glulam beams, a decking supported by curved purlins, and a steel tension ring. Geometric and material nonlinearities are considered. The analysis centers on the effect of the beam-decking connectors on the dome behavior. The results include ultimate snow loads, buckling modes, and the status of the material prior to buckling.

Subject Headings: Snow loads | Laminated materials | Finite element method | Domes (structure) | Failure analysis | Wood structures | Steel structures

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