TY - JOUR N2 - The growth in high-rise building construction has increased the need for hybrid reinforced concrete and steel structural systems. Columns in buildings are the most important elements because of their seismic resistance. Reinforced concrete (RC) columns and steel columns were used herein to form hybrid structural systems combining their distinct advantages. Eleven 3D building models subjected to earthquake excitation with reinforced concrete beams and slabs of 12 floors in height and with different distributions of mixed columns were analyzed by the SAP2000 software in order to investigate the most suitable distributions of a combination of reinforced concrete and steel columns. Top displacements and accelerations, base normal forces, base shear forces, and base bending moments were computed to evaluate the selected hybrid structural systems. The findings are helpful in evaluating the efficiency of the examined hybrid high-rise buildings in resisting earthquakes. L1 - http://www.journals.pan.pl/Content/115659/PDF/01_ace-2019-0015.pdf L2 - http://www.journals.pan.pl/Content/115659 PY - 2019 IS - No 2 EP - 17 KW - High-rise buildings KW - Hybrid RC-steel buildings KW - RC beams and slabs KW - RC columns KW - Steel columns KW - Seismic response KW - Earthquake resistant structures A1 - Kontoni, D.P.N. A1 - Farghaly, A.A. PB - WARSAW UNIVERSITY OF TECHNOLOGY FACULTY OF CIVIL ENGINEERING and COMMITTEE FOR CIVIL ENGINEERING POLISH ACADEMY OF SCIENCES VL - Vol. 65 DA - 30.06.2019 T1 - Seismic evaluation of mixed steel and RC columns in hybrid high-rise buildings SP - 3 UR - http://www.journals.pan.pl/dlibra/publication/edition/115659 T2 - Archives of Civil Engineering ER -