In Rehab We Trust

by Benjamin Lavon, (M.ASCE), Principal; Feld Kaminetzky & Cohen Consulting Engineers, Rosyln Heights, NY,

Serial Information: Civil Engineering—ASCE, 1994, Vol. 64, Issue 9, Pg. 73-74

Document Type: Feature article


Glulam structures will be durable and last for a long time provided structural elements are protected from water and moisture. Once water is allowed to come into direct contact with glulam members for a sufficient duration, structural damage will occur, especially if the members are not pressure-treated with a preservative to resist insect and micro-organisms damage. The amazing fact that the internal decay in the legs of such timber arches could progress to a dangerous point without any visible distress signs should serve as a warning to owners of similar structures. This article focuses on a synagogue in Port Washington, N.Y., in which damaged glulam arches have recently been rehabilitated after an in depth evaluation program. The rehabilitation methods included new steel shoes, new glulam replacement pieces at the damaged areas, new concealed steel reinforcing rods and epoxy injections. Periodic field observations and column-monitoring services were provided to ensure the safety of the structure and to detect any possible movements.

Subject Headings: Laminated materials | Rehabilitation | Structural safety | Steel | Arches | Wood structures | Wood and wood products

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