Seismic Performance and Composite Action of Older Structuresby Charles W. Roeder, Univ of Washington, Seattle, United States,
Roberto Leon, Univ of Washington, Seattle, United States,
F. Robert Preece, Univ of Washington, Seattle, United States,
Abstract: A study into the seismic performance of older steel structures is described. A review is made of the types of steel building construction completed during the period of interest, and the evolution of seismic design requirements during this period is described. Experiments performed to evaluate the strength, stiffness and ductility of some of these older structures are summarized. The experiments examine the effect of concrete encasement for fire protection and riveted connections on seismic behavior. The results show that these elements have considerable influence on the behavior of these older structural components. Research on this topic continues. Further tests are being performed, and models which predict their behavior are under development.
Subject Headings: Steel structures | Earthquake resistant structures | Steel construction | Seismic tests | Seismic effects | Composite structures | Seismic design | Structural behavior
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