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Portland State University

Dissertations and Theses

Structural Engineering

Bending moment

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Full-Text Articles in Engineering

Secondary Stresses In Bowstring Timber Trusses, John F. Bradford Jan 1983

Secondary Stresses In Bowstring Timber Trusses, John F. Bradford

Dissertations and Theses

This study was undertaken in order to determine analytically the magnitude of the secondary (i.e., joint deflection induced) moments in the continuous glued-laminated chords of bowstring timber trusses. Traditionally, these moments have been assumed to be small and therefore neglected. The American Institute of Timber Construction makes no mention of these moments in their recommended design procedure.