Large Reinforced Concrete Active Reclaim Silos

by Robert P. Kerfoot, Sargent & Lundy, Chicago, IL, USA,
Shu-Jin Fang, Sargent & Lundy, Chicago, IL, USA,

Document Type: Proceeding Paper

Part of: Materials and Member Behavior


The design and construction of large reinforced concrete shell silos used to provide economical short-term protected storage for coal and lignite in the active reclaim systems of power plants are discussed. Design-basis loads due to input and withdrawal of contents, wind, seismic effects, thermal effects, and mechanical systems are described. Additional design considerations including provisions for ventilation and dust removal, adequate and controlled flow during withdrawal, the presence of acid, possible future post-tensioning, and the use of slip forming during construction are outlined.

Subject Headings: Reinforced concrete | Silos | Seismic loads | Coal | Power plants | Dust | Load factors | Lateral loads

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