This work illustrates some applications of nonlinear dynamic response sensitivity analysis to steel frame structures equipped with buckling-restrained braces (BRBs). A realistic 4-storey steel frame equipped with buckling-restrained V-bracings subjected to a set of seismic ground motions is used as benchmark problem. BRB internal core areas are assumed as sensitivity parameters and inter-storey drifts are chosen as engineering demand parameters. The worst possible combination of parameter variations is individuated and the reduction of the seismic performance as a function of the parameter variation amplitude is estimated for the benchmark problem.

Response sensitivity analysis of steel frames with buckling-restrained braces

ZONA, Alessandro;DALL'ASTA, Andrea
2010

Abstract

This work illustrates some applications of nonlinear dynamic response sensitivity analysis to steel frame structures equipped with buckling-restrained braces (BRBs). A realistic 4-storey steel frame equipped with buckling-restrained V-bracings subjected to a set of seismic ground motions is used as benchmark problem. BRB internal core areas are assumed as sensitivity parameters and inter-storey drifts are chosen as engineering demand parameters. The worst possible combination of parameter variations is individuated and the reduction of the seismic performance as a function of the parameter variation amplitude is estimated for the benchmark problem.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11581/242092
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