Ultimate Limit State Design Of Sheet Pile Walls By Finite Elements And Nonlinear Programming

Kristian Krabbenhøft, Lars Damkilde, Sven Krabbenhøft

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    Abstrakt

    Limit analysis has been used for decades in civil and mechanical engineering practice as a means of analyzing structures of materials which with reasonable accuracy can be described as being rigid-perfectly plastic. Such materials include steel, concrete and soils. Traditionally, most attention has been given to the problem which consists of determining the ultimate magnitude of a given set of loads acting on a structure with a given geometry. This problem is relevant when determining e.g. the necessary extrusion pressure in metal forming problems, when evaluating the bearing capacity of reinforced concrete slabs or the stability of slopes, and generally, whenever all information about the structure, except for the ultimate magnitude of the load set, is known. However, in the design of structures the situation is the opposite. Here the loads are known whereas the necessary dimensions, boundary conditions, material strengths, etc. must be determined in such a way that the structure is able to sustain the given loads. Thus, limit analysis embraces two different scenarios, one where everything except the maximal permissible load intensity is known, and one where all that is known is the load intensity.
    In the paper we consider the latter of these problems with particular reference to the design of sheet pile walls.
    OriginalsprogEngelsk
    TitelProceedings of 3rd International Conference on Engineering Computational Technology
    RedaktørerB.H.V. Topping, Z. Bittnar
    UdgivelsesstedGlasgow
    ForlagCivil-Comp Press
    Publikationsdato2002
    ISBN (Trykt)0-948749-84-9, 0-948749-86-5
    ISBN (Elektronisk)0-948749-85-7
    DOI
    StatusUdgivet - 2002

    Emneord

    • Sheet Pile Walls
    • Plasticity
    • Limit Analysis
    • Material Optimization
    • Finite Elements
    • Nonlinear Programming

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