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Civil-Comp Proceedings
ISSN 1759-3433 CCP: 71
COMPUTATIONAL CIVIL AND STRUCTURAL ENGINEERING Edited by: G. De Roeck and B.H.V. Topping
Paper XII.1
The Effect of the Tensile Stress in the Subgrades on the Fatigue Life of an Airfield Runway J.W. Bull+ and C.H. Woodford#
+Engineering Design Centre and the Department of Civil Engineering
J.W. Bull, C.H. Woodford, "The Effect of the Tensile Stress in the Subgrades on the Fatigue Life of an Airfield Runway", in G. De Roeck, B.H.V. Topping, (Editors), "Computational Civil and Structural Engineering", Civil-Comp Press, Edinburgh, UK, pp 265-274, 2000. doi:10.4203/ccp.71.12.1
Abstract
The effect of tension and progressive reduction in the strength
of the subgrade on the fatigue life of a cement concrete runway
is examined. There may be almost no indication on the runway
surface that any change has taken place to the runway's load
deflection parameters, but significant reductions will have
taken place in the fatigue strength of both the subgrade and the
runway. The difference in deflections for the filled and the
unfilled camouflet differed by no more than 0.5%. Progressive
collapse of the camouflet will take place over a period of time.
The effect of the camouflet is not restricted to the subgrade
zones directly effected by the explosion. Filling the camouflet
had little effect on increasing the fatigue Me of the runway.
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