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Category Archives: Arch structures
Jørn Utzon and David Moore
Tomorrow (9th April 2018) is the centenary of the birth of Jørn Utzon, the architect of the Sydney Opera House, which is celebrated in an article at the Sydney-Morning Herald. The article quotes a grand-son of Utson, Mika Utzon Popov, … Continue reading
Posted in Arch structures, Bach, Newton
Tagged construction photographs, David Moore, Jorn Utzon, Sydney Opera House
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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
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 Excel, FEA, Fortran, Frame Analysis, link to dll, moment curvature, Non-linear concrete, Non-linear geometry, Programming the Finite Element Method, Python, SciPy, sparse solvers, VBA, xlwings
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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
Posted in Arch structures, Newton
Tagged Arch bridges, China, Paper bridge, Range Rover
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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
Posted in Arch structures, Historic Bridges, Newton
Tagged Avignon Bridge, Gladesville Bridge
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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
Posted in Arch structures, Newton
Tagged Fordingbridge, Gothic arch bridges, Norman structures, Salisbury
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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
Posted in Arch structures, Historic Bridges, Newton
Tagged Admiral's Bridge, arch forms, old arch bridges, Palermo, Ponte dell' Ammiraglio
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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
Posted in Arch structures, Bach, Dome Structures, Newton
Tagged Duomo, Florence Cathedral, History of the dome, Santa Maria del Fiore
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