Timber structure

Alcock, N. W.; Harris, Richard; Heath, Kingston Wm.; Courtenay, Lynn T.; Hodge, A. Trevor; Currie, C. R. J.; Parent, Mary Neighbour

doi:10.1093/gao/9781884446054.article.t085066

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“…Rather, it is a tension member, providing mid-span support to the tie beam. The German term, hängesäule, more accurately describes its function [5], as the German language separates roof timberwork into general classifications of Hängewerk and Sprengewerk. However, to maintain continuity with traditional terms, this vertical member will be referred to as a kingpost.…”

Section: Historic Backgroundmentioning

confidence: 99%

Structural Analysis of Wood Trusses of San Paolo Fuori Le Mura, Rome, Italy

Robison

2019

WIT Transactions on the Built Environment

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The Roman double trusses of San Paolo fuori le Mura (FLM) are the oldest long-span Roman trusses for which sufficient information exists to perform a structural analysis. Span, spacing, and scantlings of members were recorded previous to the loss of the trusses due to a catastrophic fire in 1823. Wood species type can be inferred from comments by Pliny the Elder regarding other long-span trusses in ancient Rome. While the quality of the wood cannot be determined, the analysis results can be bracketed using allowable stresses from different wood visual grading standards. Dead and live loads can be estimated using loadings developed for current engineering practice. Quantifying the levels of stresses in the trusses of San Paolo FLM indicates a relatively conservative design. Stresses in the rafters, or upper chords, were reduced by the insertion of a collar strut providing an intermediate support to the upper chords. Even if it is assumed that timbers matching visual grade DF/L No. 2 were used, the combined flexural and axial stresses in the upper chords are well within those permitted by modern design standards.

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Section: Historic Backgroundmentioning

confidence: 99%

Structural Analysis of Wood Trusses of San Paolo Fuori Le Mura, Rome, Italy

Robison

2019

WIT Transactions on the Built Environment

View full text Add to dashboard Cite

show abstract

Timber structure

Cited by 1 publication

References 0 publications

Structural Analysis of Wood Trusses of San Paolo Fuori Le Mura, Rome, Italy

Structural Analysis of Wood Trusses of San Paolo Fuori Le Mura, Rome, Italy

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