COMPARATIVE ANALYSIS OF COMPOSITE STRUCTURES (BEAMS) BECAUSE OF SEISMIC LOADS FOR DIFFERENT MATERIAL COMBINATIONS

Composite Beams are the most important members of any civil structures because they sustain the loads which act on the structure and hence provide a safe and secure closed area for the human beings to live. Because of this ever-increasing importance of the beams, researchers have studied a lot about the beams in order to enhance their properties. One such effort has been made in the current paper to analyse the beams for different material combinations. One G+4 building structure has been considered here for the analysis which will be tested and validated for seismic loads. Two load combinations have been used and the beams have been analysed for maximum relative displacement, maximum positive moment, maximum negative moment and maximum positive shear force for four outer beams which are supposed to be affected the most because of seismic loading. Cross-section of the beams will remain the same and for the current analysis I cross-section of has been selected. Different material combinations of the beam namely ISWB250 Steel with Concrete on Top flange, ISWB250 Stainless Steel with Cover plate on Top flange, ISWB250 Aluminium with Cover plate on Top flange and ISWB250 Aluminium with Cover plate on both Top and bottom flanges have been used in combinations and hence the beams are now called as composite beams.