A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Design Live Loads on Box Culverts
This report discusses the development of equations to calculate live loads for the design of precast concrete box culverts. The equations generate a uniformly distributed live load based on the depth of fill above the culvert. The method of superposition was used to calculate stresses on the box culverts top slab. The American Association of State Highway and Transportation Officials (AASHTO) design tandem and design truck loads were used in the generation of the expected live loads. These loads were then used to calculate shears and moments in the culverts slab. An equivalent uniform load that produced the same maximum shear or moment as did the AASHTO trucks was then computed. These equivalent loads were then plotted versus soil depth to develop design equations. Based on the results, the final design equation may eventually be used in lieu of the AASHTO method currently used to generate design live loads. The calculated stresses, as well as the shears and moments, match closely to those generated by the AASHTO method.
Design Live Loads on Box Culverts
This report discusses the development of equations to calculate live loads for the design of precast concrete box culverts. The equations generate a uniformly distributed live load based on the depth of fill above the culvert. The method of superposition was used to calculate stresses on the box culverts top slab. The American Association of State Highway and Transportation Officials (AASHTO) design tandem and design truck loads were used in the generation of the expected live loads. These loads were then used to calculate shears and moments in the culverts slab. An equivalent uniform load that produced the same maximum shear or moment as did the AASHTO trucks was then computed. These equivalent loads were then plotted versus soil depth to develop design equations. Based on the results, the final design equation may eventually be used in lieu of the AASHTO method currently used to generate design live loads. The calculated stresses, as well as the shears and moments, match closely to those generated by the AASHTO method.
Design Live Loads on Box Culverts
R. A. Cook (author) / D. Bloomquist (author) / A. J. Gutz (author) / M. H. Ansley (author)
2002
95 pages
Report
No indication
English
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