In this paper, a multi-objective advanced design methodology is proposed for steel-concretecomposite moment-resisting frames. The research activity mainly focused on the design ofbeam-to-column joints under seismic-induced fire loading together with the definition ofadequate structural details for composite columns. Thermal analyses of cross sections wereperformed in order to obtain internal temperature distribution; structural analyses were thencarried out on the whole frame to assess the global behavior under the combined action ofstatic and fire loadings. Furthermore, results of numerical analyses were used in order to deriveinformation about the mechanical and numerical behavior of joints. In this paper theexperimental program carried out on four beam-to-column joint specimens under seismicloading is described and results are presented and discussed together with the outcomes ofnumerical simulations owing to seismic and fire actions. Experimental tests demonstrated theadequacy of the seismic design. Numerical simulations showed a satisfactory performance ofjoints under seismic-induced fire loading.
SEISMIC-INDUCED FIRE ANALYSIS OF STEEL-CONCRETE COMPOSITE BEAM-TO-COLUMN JOINTS: BOLTED SOLUTIONS
PUCINOTTI, RAFFAELE;
2011-01-01
Abstract
In this paper, a multi-objective advanced design methodology is proposed for steel-concretecomposite moment-resisting frames. The research activity mainly focused on the design ofbeam-to-column joints under seismic-induced fire loading together with the definition ofadequate structural details for composite columns. Thermal analyses of cross sections wereperformed in order to obtain internal temperature distribution; structural analyses were thencarried out on the whole frame to assess the global behavior under the combined action ofstatic and fire loadings. Furthermore, results of numerical analyses were used in order to deriveinformation about the mechanical and numerical behavior of joints. In this paper theexperimental program carried out on four beam-to-column joint specimens under seismicloading is described and results are presented and discussed together with the outcomes ofnumerical simulations owing to seismic and fire actions. Experimental tests demonstrated theadequacy of the seismic design. Numerical simulations showed a satisfactory performance ofjoints under seismic-induced fire loading.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
