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Wooden Cribbed Grain Storage Elevator and Annex General History, Structural Design, Materials and Construction with Guidelines for Inspection and Evaluation of Wear and Damages for Repair, Modernization, Re-purposing or Demolition Considerations

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  2021 ASABE Annual International Virtual Meeting  2100850.(doi:10.13031/aim.202100850)
Authors:   Rodney Nohr, PE
Keywords:   Annex, Bin, Cribbed, Demolition, Elevator, Evaluation, Grain, Inspection, Repair, Repurpose, Storage, Structural Design, Wood

Abstract: Cribbed wood grain storage elevators, annexes and bins are still very common and in use in seed and grain producing areas of the United States and Canada. Cribbed elevators are a North American invention, which originated in the 1850‘s. There were very few if any publications with structural design information with the original designers, builders and contractors utilizing their own in-house, often empirical, designs, construction details and construction experience. The last new cribbed wood elevators and annexes were constructed in the late 1970‘s with almost all the experienced designers, contractors and builders now gone. Hundreds of cribbed elevators and annexes remain in use or are abandoned in place. This paper‘s purpose is to briefly summarize cribbed wood elevator and annex structural design, construction materials and details and to provide guidelines for inspection and evaluation of wear and damages for use in elevator and annex repair, modernization, repurposing or demolition considerations by current owners, repair contractors and designers.

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