Tag Archives: Catenary

Asymmetric Catenary Function

Posted on January 31, 2020 by dougaj4

Back in 2009, I posted a user defined function (UDF) to generate a catenary curve, that could be used together with the Excel Solver to generate a curve of a specified span and sag: A catenary function Following a discussion … Continue reading →

Posted in Coordinate Geometry, Curve fitting, Excel, Maths, Newton, UDFs, xlwings | Tagged , , , , | 1 Comment

The roof of the Taq-i-Kisra; Analysis

Posted on June 10, 2008 by dougaj4

Following the previous post, I have compared the stresses in the Taq-i-Kisra assuming either a catenary or parabolic profile. I have also compared constant depth sections with sections increasing in depth towards the supports. The arch span was taken as … Continue reading →

Posted in Arch structures, Finite Element Analysis, Maths, Newton | Tagged , , , , , | 2 Comments

The Roof of the Taq-i-Kisra

Posted on June 8, 2008 by dougaj4

A higher resolution image, from a slightly different viewpoint The roof of the Persian Throne Room of the Taq-i-Kisra, now in Iraq, is the best surviving example of an ancient large span structure built to a catenary profile, the shape that … Continue reading →

Posted in Newton | Tagged , | 7 Comments