Construction time was saved by Bethlehem Steel Corp in replacing through-truss railroad span with plate-girder span, 147 ft long over Lehigh River; one 100-ton rig with 100-ft boom and 30-ft jib, on solid railroad bed, was used to set cross beams on top of truss span to support pair of longitudinal beams that serve as tracks for lifting trolleys; cross beams range from 30 WF 124, 30-ft long, to 36 WF 300, 46ft long; 8-wheel trolleys were shop-mounted on 14 WF short beams to avoid difficulties of getting trolleys up on track site.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Trusses help erect girders, then girders help demolish trusses


    Weitere Titelangaben:

    Eng News-Rec


    Erschienen in:

    Erscheinungsdatum :

    1965


    Format / Umfang :

    3 pages


    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Booms and Trusses

    Jenkins, Christopher H. M. | AIAA | 2006


    Trusses and Cables

    Pai, P.Frank | AIAA | 2007


    LEG CARRIAGE TYPE TRUSSES

    CALLAHAN MICHAEL | Europäisches Patentamt | 2020

    Freier Zugriff

    Apparatus for joining trusses

    Finckenor, Jeffrey | NTRS | 1991


    Secondary stresses in trusses

    Dwyer, T. J. | NTRS | 1964