Category Archives: Arch structures

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

Posted on 10/10/2016 by dougaj4

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 →

Posted in Arch structures, Beam Bending, Concrete, Excel, Finite Element Analysis, Fortran, Frame Analysis, Link to dll, Link to Python, NumPy and SciPy, Strand7, VBA | Tagged , , , , , , , , , , , , , | 1 Comment

Paper bridge

Posted on 27/11/2015 by dougaj4

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

Posted on 15/11/2014 by dougaj4

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

Posted on 25/10/2014 by dougaj4

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

Posted on 08/10/2014 by dougaj4

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 →

Posted in Arch structures, Historic Bridges, Newton | Tagged , , , , | 2 Comments