Seismic Control System for Vertically Irregular Buildings

Authors

  • Shaikh Shujaht
  • Satish Deshmukh

Abstract

Behavior of High rise building mainly depends on their structural planning. In this present study, a G+20 storey RCC building having vertical setback irregularity above tenth storey is considered. Due to such irregular configuration building becomes more vulnerable to seismic vibration. To control these vibration stiffeners are used at suitable positions, by going through trial and error method. The parameters considered for comparison are fundamental time period, storey displacement and storey drift. The analysis is carried by response spectrum method. It can be seen that adding the steel bracing at effective location reduces story displacement, story drift, torsional displacement and it also helps in shifting the torsional mode from first mode to third mode. The steel bracings are also be effectively used as retrofitting in vertically irregular building by positioning suitably at the required bays of the building.

Keywords: Vertically irregular building, torsional response, response spectrum method, bracing

References

Code IS 1893 (part 1), criteria for earthquake resistant design of structures. Bureau of Indian

Standards, 2016; New Delhi, India

Manohar, S. and Madhekar, S., 2015. “Seismic design of RC building: Theory and practice.”

Springer Transactions in Civil and Environmental Engineering ISBN: 978-81-322-2319-1

Khoure, W., Rutenberg, A., Levy, R., 2005. On the Seismic Response of Asymmetric Setback

Perimeter-Frame Structures. In: Proceedings of the 4th European Workshop on the Seismic

Behavior of Irregular and Complex Structures, Thessaloniki.

Gokdemi, H., Ozbasaran, H., Dogan, M., Unluoglu, E., Albayrak, U., 2013. Effects of Torsional

Irregularity to Structures during Earthquakes. Engineering Failure Analysis 35, 713–717.

Sekhar Chandra Dutta, Pranab Kumar Das & PiyaliSengupta (2017) Seismic Behaviour of Irregular

Structures, Structural Engineering International, 27:4, 526-545

Rakshith K L and Smitha. “Effect of Bracings on Multistored RCC Frame Structure under Dynamic

Loading.” International Journal of Advance Research, Ideas and Innovations in Technology 3.4

(2017).

J. Makavana. and V. Anand. “Comparative Study of Lateral Load Resisting Systems for Irregular

Shape of Building for Different Soils.” International Journal of Advance Engineering and Research

Development 4.3 (2017).

IS 456:2000, Indian Standard Plain and Reinforce Concrete-Code of Practice. New Delhi, bureau

of Indian standard, 2000

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Published

2023-10-10

Issue

Vol. 10 No. 3 (2023)

Section

Research Article

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