Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Live Load Rating of Short Span Highway Bridges as Controlled by the Exterior Girder
The 1973 AASHTO Standard Specifications for Highway Bridges introduced the requirement that 'In no case shall an exterior stringer have less carrying capacity than an interior stringer'. This statement resulted from the concern that many original exterior stringers became interior stringers when bridges were widened. Since current specifications are used when rating the live load capacity of existing bridges, this newly introduced requirement has in some cases resulted in an unnecessary reduction in live load ratings. This study examines a number of cases in which the exterior stringers are lighter than the interior ones and illustrates the effects of the new provision. The report concludes with a recommendation for an exemption provision from this requirement in the appropriate article of the 'Manual for Maintenance Inspection of Bridges', 1974, 2nd. ed., AASHTO.
Live Load Rating of Short Span Highway Bridges as Controlled by the Exterior Girder
The 1973 AASHTO Standard Specifications for Highway Bridges introduced the requirement that 'In no case shall an exterior stringer have less carrying capacity than an interior stringer'. This statement resulted from the concern that many original exterior stringers became interior stringers when bridges were widened. Since current specifications are used when rating the live load capacity of existing bridges, this newly introduced requirement has in some cases resulted in an unnecessary reduction in live load ratings. This study examines a number of cases in which the exterior stringers are lighter than the interior ones and illustrates the effects of the new provision. The report concludes with a recommendation for an exemption provision from this requirement in the appropriate article of the 'Manual for Maintenance Inspection of Bridges', 1974, 2nd. ed., AASHTO.
Live Load Rating of Short Span Highway Bridges as Controlled by the Exterior Girder
H. L. Kinnier (Autor:in) / F. W. Barton (Autor:in)
1977
28 pages
Report
Keine Angabe
Englisch
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