Analysis of thin-walled box girders by parallel processing

Apostolos Fafitis, Alex Yuan Rong

    Research output: Contribution to journalArticle

    5 Citations (Scopus)

    Abstract

    This paper presents a substructuring analysis method for thin-walled box girders. The formulation of the problem and the independent computational tasks of each thin-walled substructure lend themselves to parallel processing. Instead of solving the condensed equilibrium equations in the traditional substructuring method, a mix of compatibility and equilibrium equations are employed. The major unknowns are the shear forces at the interfaces where the thin walls of the substructures join. The proposed substructuring method is general and can be performed by using commercial finite-element analysis software on microcomputers. Numerical examples of a thin-walled box girder are analyzed by the proposed method and the results are compared with classical solutions and other studies. The stresses and shear lag calculated by the proposed method compare favourably with those reported by other investigators. Estimates of reduction in computation time and computer memory for the stiffness matrix operation indicate that the method is numerically efficient.

    Original languageEnglish (US)
    Pages (from-to)233-240
    Number of pages8
    JournalThin-Walled Structures
    Volume21
    Issue number3
    DOIs
    StatePublished - 1995

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    Beams and girders
    Stiffness matrix
    Microcomputers
    Finite element method
    Data storage equipment
    Processing

    ASJC Scopus subject areas

    • Civil and Structural Engineering
    • Mechanical Engineering
    • Building and Construction

    Cite this

    Analysis of thin-walled box girders by parallel processing. / Fafitis, Apostolos; Rong, Alex Yuan.

    In: Thin-Walled Structures, Vol. 21, No. 3, 1995, p. 233-240.

    Research output: Contribution to journalArticle

    Fafitis, Apostolos ; Rong, Alex Yuan. / Analysis of thin-walled box girders by parallel processing. In: Thin-Walled Structures. 1995 ; Vol. 21, No. 3. pp. 233-240.
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