Failure Prediction of Spatial Wood Structures: Geometric and Material Nonlinear Finite Element Analysis

The purpose of this study is to investigate spatial wood structures, trace their response on equilibrium paths, identify failure modes, and predict the ultimate load. The finite element models of this study are based on the Crafts Pavilion dome (Triax) in Raleigh, North Carolina, and the Church of the Nazarene dome (Varax) in Corvallis, Oregon. Modeling considerations include 3-d beam finite elements, transverse isotropy, torsional warping, beam-decking connectors, beam-beam connectors, geometric and material nonlinearities, and the discretization of pressure loads. The primary objective of this study is to test the hypothesis that the beam-decking connectors (B-D connectors) form the weakest link of the dome. The beam-decking connectors are represented by nonlinear springs which model the load slip behavior of nails between the beam and the decking. The secondary objective of this study is to develop models that are sufficiently simple to use in engineering practice.

Name thesis:degree_name

Ph. D.

Level thesis:degree_level

doctoral

Discipline thesis:degree_discipline

Civil Engineering

Department dc:contributor.department

Civil Engineering

Grantor dc:publisher

Virginia Tech

Year dc:date.issued

1997

Author dc:creator

• Tongtoe, Samruam

Chair dc:contributor.committeechair

• Holzer, Siegfried M.

Committee members dc:contributor.committeemember

• Plaut, Raymond H.
• Loferski, Joseph R.
• Garst, Donald A.
• Thangjitham, Surot

• glulam
• Wood
• nonlinear
• Finite element method
• dome

Statement dc:rights

• In Copyright

Licence dc:rights.uri

• http://rightsstatements.org/vocab/InC/1.0/

Dc Identifier Other

etd-501502339731121

OAI identifier oai:identifier

oai:vtechworks.lib.vt.edu:10919/30557