To read the full version of this content please select one of the options below:

Comparative study on seismic performance of specially shaped RC columns with that of rectangular columns in high-rise structures

Shanmukha Shetty (Department of Civil Engineering, Nitte Engineering College, Nitte, India)
Subrahmanya R.M. (Department of Civil Engineering, Vivekananda College of Engineering and Technology, Puttur, India)
Sushanth Bhandary (Department of Civil Engineering, Nitte Engineering College, Nitte, India)
Thushar Shetty (Department of Civil Engineering, Nitte Engineering College, Nitte, India)

International Journal of Structural Integrity

ISSN: 1757-9864

Article publication date: 2 September 2019

Issue publication date: 18 March 2020

Abstract

Purpose

Columns are structural elements that are predominantly subjected to compressive forces and moments that are to be transferred from the super-structure to the sub-structure. The geometrical shape of a column is a significant factor to be considered. The paper aims to discuss this issue.

Design/methodology/approach

Pushover analysis is carried out, to study the behavior of RC frames with rectangular and specially shaped columns for the same building layout.

Findings

Reduction of 27.3 percent in base shear, 67.4 percent in spectral displacement, 66.5 percent reduction in storey displacement, 70.22 percent in storey drift and 0.315 percent reduction in storey shear is observed.

Practical implications

Special shaped RC columns can effectively enhance the structural behavior of high rise structures under seismic excitation in comparison to those with regular shaped RC columns.

Originality/value

Applications of special shaped columns in structures have showed a great deal of reduction in displacement and shear forces developed due to seismic activity, for the same area of concrete and steel as in rectangular columns.

Keywords

Citation

Shetty, S., R.M., S., Bhandary, S. and Shetty, T. (2020), "Comparative study on seismic performance of specially shaped RC columns with that of rectangular columns in high-rise structures", International Journal of Structural Integrity, Vol. 11 No. 2, pp. 202-215. https://doi.org/10.1108/IJSI-03-2019-0027

Publisher

:

Emerald Publishing Limited

Copyright © 2019, Emerald Publishing Limited