Transcription of Expansion Joints: Where, When and How
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Expansion Joints: Where, When and How
Expansion Joints: Where, When and HowBy James M. Fisher, the most basic sense, the need for anexpansion joint in a structure dependson the consequence of not having anexpansion joint. Will the lack of anexpansion joint hamper or destroy thefunction of the facility, or cause damageto the structural or architectural compo-nents? The number and location of build-ing Expansion joints is a design issue notfully treated in technical literature. TheLRFD Specification(AISC, 1999) listsexpansion and contraction as a service-ability issue and provides the statementin Section L2, Adequate provision shallbe made for Expansion and contractionappropriate to the service conditions ofthe structure.
bracing is that bumper forces have to be transferred a greater distance to get to the bracing as compared to braces that are located near the crane stops. Crane runway beams: Only as a last resort should expansion joints be pro-vided for runway beams. By providing oversize holes at the beam ends, expan-sion and contraction can be allowed in
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