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    Analytical model for concrete anchorages of reinforcing bars under generalized excitations
    (1982) Ciampi, Vincenzo; Eligehausen, Rolf; Bertero, Vitelmo V.; Popov, Egor P.
    This report presents an analytical model for predicting the behavior of single deformed reinforcing bars embedded in confirmed concrete and subjected to generalized excitations in the range of low cycle fatigue. The model is based on a general local bond stress-slip relationship, derived from the results of an extensive study performed at Berkeley, and on either a bilinear or a simple but sufficiently accurate nonlinear stress-strain relationship for the reinforcing steel bar. An efficient numerical scheme for the integration of the governing differential equation of bond along the embedment length of the bar is presented.
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    Local bond stress-slip relationships of deformed bars under generalized excitations : experimental results and analytical model
    (1983) Eligehausen, Rolf; Popov, Egor P.; Bertero, Vitelmo V.
    This report covers integrated experimental and analytical investigations that permit predicting analytically the local bond stress-slip relationship of deformed reinforcing bars subjected to generalized excitations, such as may occur during the response of reinforced concrete (RIC) structures to severe earthquake ground motions.
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    Air-tunnel model study of Fort Martin Cooling Tower
    (1965) Kobus, Helmut
    The study described in this report was conducted at the Iowa Institute of Hydraulic Research for the Marley Company, Kansas City, Missouri. A 1:300 scale model of the tower and an inside fan for simulating the natural draft were provided by the company. The tests were performed in an air tunnel with a 5-foot octagonal test section. The model was mounted on a turn table, and a false floor was provided on the upstream side. All experiments were performed for the specified total-head loss across the grid section of about 22 velocity heads.