Carnegie Hall in New York and the Alexander Memorial Coliseum (AMC) in Atlanta have recently gained a new lease of life by incorporating SPS panels into their renovation programs. This light prefabricated steel composite structural panel minimized the strengthening required of the existing frame, shortened schedules, reduced programme complexity and helped to deliver a new lease of life to these two historic steel frame structures. With tightening budgets and increasing momentum to more sustainable structural inventories, owners need to innovate during the renovation and life extension of their existing structures as well as during the creation of more sustainable new structures. SPS? is a composite (sandwich) plate comprised of steel faceplates and an elastomer core that was developed for use in civil, maritime and offshore structures. The plate and core thicknesses are tailored to provide a structural plate with the required strength and stiffness for the given structure. The core properties were engineered to preclude local buckling of the faceplates and ,to provide sufficient shear stiffness so the faceplates can reach yield in compression, flexure or any combination. This paper will describe these two recent renovation projects as well as the product development and project engineering that allowed their successful delivery. It will provide details of the key testing and approvals involved followed by the limit states performance assessments involved for each project. Design guidelines developed for similar future projects will also be presented.
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