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Title: Folsom Dam Outlet Works Modification Project simplified three-dimensional stress analysis of monolith 12
Authors: United States. Army. Corps of Engineers. Sacramento District.
Matheu, Enrique E.
Garner, Sharon B.
Keywords: Concrete dams
Dynamic stress analysis
Dynamic stresses
Ground motions
Nonoverflow monolith
Overflow monolith
Hydraulic structures
Folsom Dam (Calif.)
Earthquake effects
Publisher: Geotechnical and Structures Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: ERDC/GSL TR ; 05-14.
Description: Technical Report
Abstract: This report presents a finite-element stress analysis of monolith 12 conducted to assess any potential adverse effects caused by the proposed dimensions of the air vent near the base of the spillway pier wall. A simplified three-dimensional finite-element model was developed to simplify the analysis while preserving the main characteristics of the section. The numerical model included fixed boundary conditions along the base and appropriate boundary conditions along the two lateral planes representative of the vertical contraction joints. The analyses included static (self-weight and hydrostatic) and dynamic (inertial and hydrodynamic) effects. The dynamic effects were accounted for using equivalent lateral loads and following Chopra’s simplified procedure for seismic analysis of concrete gravity sections. The results provide an estimate of the stress field around the air manifold opening along the downstream face, and they provide a quantitative basis to evaluate its impact at the proposed location and to complete the design of any necessary reinforcement to be placed around the conduit.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Technical Report

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