This paper focuses on the site specific seismic analysis of this unique steel rigid framestructure and the development of a “floating deck” seismic isolation system consisting of both frictionand elastomeric isolators. In addition to reducing the demands on the seismically vulnerable regions(such as the riveted member connections), detailing the deck to be continuous over several substructurepanels allowed for a reduction in the number of expansion joints, making for a more maintenance-freestructure.
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