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A Finite-Element Method of Solution for Structural Frames
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1967-05-01
[PDF-2.91 MB]
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Alternative Title:Development of Methods for Computer Simulation of Beam-Columns and Grid-Beam and Slab Systems [Project Name]
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Abstract:An efficient numerical method of solution to structural frame problems is presented. The method is shown to be applicable to no-sway, plane-frame structures that may derive part or all of their support from soils. A finite-element model composed of bars and springs is used to represent groups of orthogonal frame members. Finite difference equations written for this model are solved by a previously developed recursive method. Individual beams are solved alternately in the two orthogonal directions and at each joint a relaxation technique is used to adjust the two solutions and achieve rotational compatibility. A complete listing of the Fortran computer program is included, plus several example problems illustrating the applicability of the method.
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