Reliability Estimation for Vertical Lift Gate at Emsworth Dam

by Paul Mlakar, JAYCOR, United States,
Larry Bryant, JAYCOR, United States,



Document Type: Proceeding Paper

Part of: Water Resources Infrastructure: Needs, Economics, and Financing

Abstract: The lift gates are composed of two horizontal trusses, two vertical girders, seven diaphragms, and two end frames. A critical element in the structural integrity of the lift gate is a diagonal member in the top truss. Although failure of a diagonal might not cause collapse of the gate, it would certainly impair gate operation. Based on previous deterministic calculations by District engineers, the critical diagonal was selected for reliability estimation. This paper discusses the analytical methods and results.

Subject Headings: Trusses | Gates (hydraulic) | Dams | Girders | Diaphragms (structural) | Frames | Failure analysis

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