THE GUIDELINES FOR THE DESIGN OF STEEL-CONCRETE COMPOSITE MOMENT RESISTING FRAMES IN SEISMIC AREAS

In this paper the design guidelines for steel-concrete frames are applied to various numerical examples. A multilevel building was defined and various structural solutions were developed. Firstly a plane frame was extracted from the building and designed as Moment Resisting Frame (MRF) in 3 different seismic zone characterized by various intensity of the seismic action pointing out the procedure for dimensioning the elements and the differences due to the effect of earthquake. In one case the alternative system of Concentric Braced Frame (CBF) with steel columns and composite beams was implemented detailing the beam-column joint. Finally the entire building was designed with MRFs considering 3 constructive systems: steel, RC and steel-concrete composite; the results are examined evidencing the peculiarities of the composite solution.