A straightforward means to reduce the mass of a truss beam is to replace some of its rigid members with prestressed tendons. Such a solution, however, involves unique design considerations, most of which have been previously unaddressed in the literature. The present paper seeks to fill this gap by reviewing the general mechanics of and some specific design considerations for a basic class of such structures: regular triangular truss beams with tendon diagonals. The issues considered and illustrated in the context of three architectural options are the pretension necessary for tautness, member vibration, parasitic force effects, truss face accuracy, longeron compression eccentricities, and stiffness. This review offers not only design formulas for one redundant and two determinate variants of the considered class of trusses, but also a blueprint for the systematic analysis and design of other trusses with prestressed members. Two specific details of the involved derivations bear further significance: 1) some shear compliance formulas regularly used for truss beam Timoshenko continuum modeling are shown to be flawed and are corrected and 2) it is illustrated that structural asymmetry may be beneficial: the stiffness of an asymmetrically laced beam is shown to exceed that of its symmetric alternative.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Truss beam with tendon diagonals: Mechanics and designs


    Additional title:

    Verfachter Träger mit Diagonalverstärkungen: Mechanik und Entwürfe


    Contributors:

    Published in:

    AIAA Journal ; 46 , 3 ; 557-567


    Publication date :

    2008


    Size :

    11 Seiten, 8 Bilder, 8 Tabellen, 31 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    Truss Beam with Tendon Diagonals --- Mechanics and Designs

    Greschik, Gyula / Michii, Yukii / Palisoc, Art et al. | AIAA | 2006



    AIAA-2006-1945 Truss Beam with Tendon Diagonals --- Mechanics and Designs

    Greschik, G. / Michii, Y. / Palisoc, A. et al. | British Library Conference Proceedings | 2006



    Motile Tensile Truss Tendon Static Attachment

    MOYER THOMAS PATRICK | European Patent Office | 2024

    Free access