Federal Highway Administration’s Horizontally Curved Steel Bridge Research Project: An Update

Duwadi, Sheila Rimal; Grubb, Michael A.; Yoo, Chai H.; Hartmann, Joseph

doi:10.3141/1696-18

Cited by 2 publications

(2 citation statements)

References 9 publications

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“…137-149 (1993) and International Journal of Solids and Structures 31 (14), 1949-1965 (1994)] are applied to rotating disks with rectangular cross-section subject to an instantaneous radial failure. The dependence of the angular size of the debris on the inner to outer radius ratio and on the load level is examined and compared with semi-empirical and experimental results in the literature.…”

Section: Introductionmentioning

confidence: 99%

Development of LRFD Specifications for Horizontally Curved Steel Girder Bridges

Kulicki¹,

Wassef²,

Kleinhans³

et al. 2006

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Systematic, well-designed research provides the most effective approach to the solution of many problems facing highway administrators and engineers. Often, highway problems are of local interest and can best be studied by highway departments individually or in cooperation with their state universities and others. However, the accelerating growth of highway transportation develops increasingly complex problems of wide interest to highway authorities. These problems are best studied through a coordinated program of cooperative research. In recognition of these needs, the highway administrators of the American Association of State Highway and Transportation Officials initiated in 1962 an objective national highway research program employing modern scientific techniques. This program is supported on a continuing basis by funds from participating member states of the Association and it receives the full cooperation and support of the Federal Highway Administration, United States Department of Transportation. The Transportation Research Board of the National Academies was requested by the Association to administer the research program because of the Board's recognized objectivity and understanding of modern research practices. The Board is uniquely suited for this purpose as it maintains an extensive committee structure from which authorities on any highway transportation subject may be drawn; it possesses avenues of communications and cooperation with federal, state and local governmental agencies, universities, and industry; its relationship to the National Research Council is an insurance of objectivity; it maintains a full-time research correlation staff of specialists in highway transportation matters to bring the findings of research directly to those who are in a position to use them. The program is developed on the basis of research needs identified by chief administrators of the highway and transportation departments and by committees of AASHTO. Each year, specific areas of research needs to be included in the program are proposed to the National Research Council and the Board by the American Association of State Highway and Transportation Officials. Research projects to fulfill these needs are defined by the Board, and qualified research agencies are selected from those that have submitted proposals. Administration and surveillance of research contracts are the responsibilities of the National Research Council and the Transportation Research Board. The needs for highway research are many, and the National Cooperative Highway Research Program can make significant contributions to the solution of highway transportation problems of mutual concern to many responsible groups. The program, however, is intended to complement rather than to substitute for or duplicate other highway research programs.

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Section: Introductionmentioning

confidence: 99%

Development of LRFD Specifications for Horizontally Curved Steel Girder Bridges

Kulicki¹,

Wassef²,

Kleinhans³

et al. 2006

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“…verified the accuracy of these approximations using detailed finite-element models of the curved three-girder test frame which was constructed under the Curved Steel Bridge Research Project experimental phase (Zureick et. al., 2000;Duwadi et. al., 2000) to evaluate the curvature effects on the bending strength of curved I-girders.…”

Section: Lateral Flange Bendingmentioning

confidence: 99%

Levels of lateral flange bending in straight, skewed and curved steel I -girder bridges during deck placement

Galindez¹

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Major-axis bending moment (Eqs. 1-1, 2-11) M + : Maximum moment in-between the cross-frame spacing (Grubb, 1991) M fw : Maximum fixed-end moment at the cross-frame locations (Grubb, 1991) M l : Lateral flange moment (Eq. 2-4) M lat : Lateral flange bending moment (Eq. 1-1) M nb : Maximum normal bending moment (Eq. 2-2) MPC: Multi-point constraint M u : Maximum moment capacity of the flange (Eq. 2-4) Mu: Factored major-axis bending M w : Maximum lateral moment in the bottom flange due to factored wind loading

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Federal Highway Administration’s Horizontally Curved Steel Bridge Research Project: An Update

Cited by 2 publications

References 9 publications

Development of LRFD Specifications for Horizontally Curved Steel Girder Bridges

Development of LRFD Specifications for Horizontally Curved Steel Girder Bridges

Levels of lateral flange bending in straight, skewed and curved steel I -girder bridges during deck placement

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