Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Structural Analysis and Load Test of a Nineteenth-Century Iron Bowstring Arch-Truss Bridge
A structural study examines the oldest remaining metal bridge in the Commonwealth of Virginia, a wrought-iron bowstring arch truss, designed and manufactured by the King Iron Bridge Company. Finite-element analysis is used to evaluate the interaction between the arch and truss, and the results are compared with field measurements from a live-load test. The study reveals that diagonal truss elements decrease arch bending by distributing concentrated vertical loads along the arch toward the abutments in a way consistent with that of modern network arch bridges. When the truss diagonals are absent, the vertical bridge-deck deflection is doubled. Underslung portal frames provide lateral stiffness to the arch, an innovation that accommodates a shallow arch profile conducive to transportation and erection.
Structural Analysis and Load Test of a Nineteenth-Century Iron Bowstring Arch-Truss Bridge
A structural study examines the oldest remaining metal bridge in the Commonwealth of Virginia, a wrought-iron bowstring arch truss, designed and manufactured by the King Iron Bridge Company. Finite-element analysis is used to evaluate the interaction between the arch and truss, and the results are compared with field measurements from a live-load test. The study reveals that diagonal truss elements decrease arch bending by distributing concentrated vertical loads along the arch toward the abutments in a way consistent with that of modern network arch bridges. When the truss diagonals are absent, the vertical bridge-deck deflection is doubled. Underslung portal frames provide lateral stiffness to the arch, an innovation that accommodates a shallow arch profile conducive to transportation and erection.
Structural Analysis and Load Test of a Nineteenth-Century Iron Bowstring Arch-Truss Bridge
Moen, Cristopher D. (Autor:in) / Shapiro, Elaine E. (Autor:in) / Hart, Julia (Autor:in)
Journal of Bridge Engineering ; 18 ; 261-271
19.11.2011
112013-01-01 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Structural Analysis and Load Test of a Nineteenth-Century Iron Bowstring Arch-Truss Bridge
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