Analysis and Design of Hollow Reinforced Concrete Columns

Abstract

A hollow concrete section is oftenly used for column design, particularly for very tall bridge columns in earthquake prone areas for reducing the mass and to reduce the self-weight contribution to the inertial mode of vibration during an earthquake. The hollow columns enable to reduce foundation dimensions and thus save the construction cost substantially. Hence, these advantages have promoted the use of hollow columns instead of similar solid members in construction of building structures as well. This study includes analysis of a G+4 commercial building with solid columns analysed in ETABS2016. The analytical data is being used to design a hollow column for the same structure under worst load combinations using software CSICOL9. The best design is being proposed with advantages of hollow columns over solid columns.