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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 30
Edited by: B.H.V. Topping
Paper VIII.1

The Design of Large Precast Concrete Units Used at Critical Airfield Locations

J.W. Bull* and C.H. Woodford#

*Department of Civil Engineering, #Computing Services
University of Newcastle upon Tyne, UK

Full Bibliographic Reference for this paper
J.W. Bull, C.H. Woodford, "The Design of Large Precast Concrete Units Used at Critical Airfield Locations", in B.H.V. Topping, (Editor), "Developments in Computer Aided Design and Modelling for Civil Engineering", Civil-Comp Press, Edinburgh, UK, pp 183-189, 1995. doi:10.4203/ccp.30.8.1
In this paper, consideration is given to the design requirements of precast concrete pavement units [PCPUs] used as replacement surfacing at the intersection of two airport runways, a critical airfield location. The PCPU's were 3775mm by 3775mm by 610mm thick and designed to be overrun by the l l01kN dual tandem main gear leg of a Lockheed Tristar KC Mkl aircraft. The design results show that the requirement of increasing the life of the PCPU, the subbase and the subgrade can be accommodated, but not all at the same time. The results also show that the pavement life is heavily dependent upon the subbase and the subgrade and that these are the parameters that need to be considered in designing PCPU pavements. In general, the PCPUs are very much over designed and could be reduced in thickness.

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