Study of seismic behavior on multi-storied buildings with square composite columns

Han Thi Thuy Hang

The article studies seismic behavior of multi-storied buildings with two types of square composite columns. The main objective of this paper is to evaluate the comparison of square composite columns: concrete-filled steel (CFS) and concrete encased I section (CES). This paper is mainly emphasis on the structural behavior of multi-storied buildings for different plan configurations like rectangles, U shape, L shape, H-shape and irregular plan with two different columns property. It is also to compare and find which building with the composite column is more effective against lateral loads. The present work deals with the seismic behavior of 15 storey building assessed through dynamic analysis (response spectrum method) as per TCVN 9386:2012 for Vietnamese seismic area, using ETABS 2016 software. The results are tabulated, compared and final conclusions are framed. From the output of ETABS, various results are obtained. And these results are evaluated by preparing various graphs.