Design Of Two Demonstration Cfrp Post-tensioned Masonry Diaphragm Retaining Walls

Summary

Two masonry diaphragm retaining walls were designed for construction on the University of Calgary campus.  Each wall  was post-tensioned with carbon fibre-reinforced polymer (CFRP) tendons.  One wall is 7.5 m long, 2.6 m high with a 7.5 m radius curve in plan, convex to the retained soil.  The second wall is straight, is 3.0 m long and 2.2 m high.  The design of the walls, foundation and capping beams is summarised, and the construction sequence and monitoring programme are described.  It is expected that the performance of these walls will confirm laboratory findings and prove that post-tensioned masonry diaphragm walls are a viable structural system in the Canadian environment.  By monitoring performance, the effects of changing temperature and humidity conditions, which could not be simulated in the  laboratory, can be assessed and compared to theoretical predictions.  5 refs.

Primary author(s): Lissel S L; Gilliland J; Shrive N G

                            Calgary,University; Stantec Consulting Ltd.

Source: Masonry (9). Proc.6th Int.Masonry Conf.

            London,4-6 November 2002,p.272-277

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