Structural Design of Standard Covered Risers

摘要

This technical release (TR) presents the criteria and procedures established for the structural design and detailing of SCS Standard Covered Risers. Much of the material in the TR either applies directly, or may be adapted readily, to risers of types other than the Standard Covered Risers. Reinforced concrete design is by Working Stress Design, allowable stresses and allowable bearing pressures are given. Loads are defined for lateral soil pressures, water pressures during pipe flow, loads on the cover slab; and, for risers located in the embankment, loads for stability and bearing pressure analyses. An example riser design is presented including all concrete thickness and reinforcing steel selection determinations.