6533b820fe1ef96bd127a640

RESEARCH PRODUCT

Discrete variable design of frames subjected to seismic actions accounting for element slenderness

Luigi PalizzoloPietro TabbusoSalvatore Benfratello

subject

Optimal designEngineeringServiceability (structure)business.industryMechanical EngineeringSeismic loadingStructural engineeringComputer Science ApplicationsShakedownModaldiscrete variables optimal design dynamic loading element buckling P-delta effectsBucklingDynamic loadingModeling and SimulationGeneral Materials ScienceDiscrete variablebusinessSettore ICAR/08 - Scienza Delle CostruzioniCivil and Structural Engineering

description

An optimal design problem formulation of elastic plastic frames under different combinations of fixed and seismic loads is presented. The optimal structure must behave elastically for the fixed loads, shakedown for serviceability conditions and prevent instantaneous collapse for fixed and high seismic loads. P-Delta effects and element buckling are considered. An appropriate modal technique is utilized. The design variables can have components in a continuous field or, alternatively, in chosen discrete sets or, yet, both kind of variables can be present. The design problem is formulated on the ground of a statical approach. The applications are related to steel frames.

10.1016/j.compstruc.2014.09.016http://hdl.handle.net/10447/101175