Category Archives: Arch structures

Non-linear frame analysis; moment curvature and self-weight

The Python/Fortran/Excel frame analysis program (previous version here) now has several new features added to the 2D-solver routines: The beam bending behaviour may now be specified with moment-curvature tables, rather than the linear-plastic behaviour required in the previous version. Beam … Continue reading

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Paper bridge

Making a model bridge out of paper is pretty easy. Making a full size bridge, strong enough to carry a Range Rover, out of just paper takes a bit of doing: It seems the guy who built the bridge (Steve … Continue reading

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The Gladesville Bridge is 50

The Gladesville Bridge in Sydney is much less well known than the steel arch bridge just up-river, but in many ways the methods used in its design and construction were more innovative, and at the time of its completion it … Continue reading

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More Pointed Arches

Visiting England’s New Forest region recently reminded me of the old bridge at Fordingbridge: The gothic arches of this bridge bear a striking resemblance to the Admiral’s Bridge at Palermo, featured in the previous post, which made me wonder if … Continue reading

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An old bridge in Palermo and pointed arches

The Ponte dell’ Ammiraglio (Admiral’s Bridge) in Palermo, Sicily, built from 1125-1135 (or 1113, according to the Italian Wikipedia), is one of the oldest surviving post-Roman era arch bridges in Europe.  The bridge has been restored and surrounded by a … Continue reading

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The Dome of Santa Maria del Fiore in Florence; new links

Earlier this year the on-line edition of National Geographic posted an article on: Mystery of Florence’s Cathedral Dome May Be Solved The wording of the article owes more to journalistic hyperbole than anything else, but it includes a link to an … Continue reading

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Rain, Steam and Speed

Joseph Mallord William Turner and Isambard Kingdom Brunel were the leading British practitioners in their respective fields in the 19th Century.  Their works came together in Turner’s painting “Rain, Steam and Speed”, which depicts Brunel’s Maidenhead Railway Bridge over the … Continue reading

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