Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Field Load Tests of Open-Deck Timber Trestle Railroad Bridges
A field load test program was conducted to evaluate three open-deck timber railroad trestle bridges. The bridges included part of a 31-span bridge, a four-span bridge with skewed interior bents and a three-span bridge. Plies of the chords of the bridges were evaluated non-destructively for material properties using an ultrasonic stress wave device. The bridges were modeled using typical frame analysis techniques to predict response to loads. Deflection and strain measurements were recorded from the load testing. The responses of the bridges to various loads were compared to the predicted responses from several analytical modeling assumptions. The diagnostic testing used loads applied statistically by axles of a test train and ramp loads applied by a specially designed railroad test car. Rolling train loads were conducted using the axles of the test train. Displace chord and ground reference deflections plus some strain measurements were recorded at selected locations.
Field Load Tests of Open-Deck Timber Trestle Railroad Bridges
A field load test program was conducted to evaluate three open-deck timber railroad trestle bridges. The bridges included part of a 31-span bridge, a four-span bridge with skewed interior bents and a three-span bridge. Plies of the chords of the bridges were evaluated non-destructively for material properties using an ultrasonic stress wave device. The bridges were modeled using typical frame analysis techniques to predict response to loads. Deflection and strain measurements were recorded from the load testing. The responses of the bridges to various loads were compared to the predicted responses from several analytical modeling assumptions. The diagnostic testing used loads applied statistically by axles of a test train and ramp loads applied by a specially designed railroad test car. Rolling train loads were conducted using the axles of the test train. Displace chord and ground reference deflections plus some strain measurements were recorded at selected locations.
Field Load Tests of Open-Deck Timber Trestle Railroad Bridges
R. M. Gutkowski (Autor:in) / G. Robinson (Autor:in) / A. Shigidi (Autor:in)
2001
126 pages
Report
Keine Angabe
Englisch
Highway Engineering , Railroad Transportation , Bridges(Structures) , Loads(Forces) , Structural timber , Railroads , Trestles , Strain measurements , Deflection , Dynamic structural response , Railroad cars , Load bearing tests , Service life , Maintenance , Mechanical properties , Bridge tests , Roadbeds , Stress analysis , Destructive tests , Railroad ties , Railroad bridges
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