Stone as a structural material. Part 3: Posttensioned stone structures
2020
To utilise stone’s high ratio of compressive to tensile strength to maximum eff ect,
stone structures can be compressed using tensioned cables or bars. Post-tensioned
stone increases the failure load of stone in bending, but also the stiff ness of a
structure by reducing joint cracking.
This method of construction is widely used for concrete structures, but the
advantages of using similar techniques with stone are only just being realised. This
article covers the reasons for post-tensioning stone, the advantages of doing so,
and presents a series of projects that demonstrate the evolution and development of
our expertise and understanding at Webb Yates.
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