Cable strengthened arches

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Abstract

The structural efficiency of arches, subjected to several variable loads, can be increased by strengthening these arches with cables. For these structures it can be necessary, especially in case the permanent load is small, to post-tension the cables to avoid any compression acting on the cables. A method to analyse the load transfer is described, to design and optimise these statically indeterminate structures. Consequently the self weight and embodied energy of this structure can be reduced too. The structural analyse is validated with a finite element program.

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