Open Access Journal

ISSN : 2394-2320 (Online)

International Journal of Engineering Research in Computer Science and Engineering (IJERCSE)

Monthly Journal for Computer Science and Engineering

Open Access Journal

IInternational Journal of Engineering Research in Mechanical and Civil Engineering (IJERMCE)

Monthly Journal for Mechanical and Civil Engineering

ISSN : 2456-1290 (Online)

Seismic Behavior of Horizontally Irregular RC Buildings

Author : Kartik Suresh Mahajan 1 Dr. K. Gopi Krishna 2

Date of Publication :14th March 2017

Abstract: Seismic events viz., Earthquakes are one of the most devastative events faced by mankind which has a potential to cripple even the economy of a nation. Reinforced concrete multi-storied high rise structures have become a common sight in urban habitat. These structures are made irregular in order to provide certain functionalities viz., parking spaces, lighting, ventilation and other architectural considerations in geometry of the structure etc. These irregularities are broadly classified as vertical and horizontal. They cause sudden change in stiffness, strength, mass characteristics of structures, resulting in drastic change in its behavior during earthquakes [10]. It has been established during earlier events at Latur (Maharashtra), Indonesia, Nepal etc., that these types of irregular structures are vulnerable during earthquakes. Hence lot of research is focused in this direction to mitigate the casualties arising due to irregular RC structures. The present paper focuses to study the seismic behavior of RC buildings which have horizontal irregularity (L-, T-, plus- and I-shaped plan configuration) with/without infill walls in comparison to a regular building for various seismic zones in INDIA having soil types I & III. Dynamic analysis using response spectrum from IS 1893 (Part 1):2002 has been performed for regular and irregular buildings using SAP2000. Further, the influence of infill wall, known for its pronounced vulnerability during past earthquakes on the seismic behavior of RC structures is also presented.

Reference :

    1.  IS 875 (Part I), “Indian Standard – Code of Practice for Design Loads other than Earthquake for Buildings and Structures – Dead Loads – Unit weights of Building Materials and Stored Materials,” Bureau of Indian Standards, New Delhi, February 1989 (Reaffirmed 2003).
    2. S 1077, “Indian Standard – Common Burnt Clay Building Bricks Specification,” Bureau of Indian Standards, New Delhi, January 1992 (Reaffirmed 2007).
    3.  ATC 40, “Seismic Evaluation and retrofit of Concrete Buildings,” Applied Technology Council, Volume 1, California Seismic Safety Commission, November 1996.
    4.  FEMA 273, “NEHRP Guidelines for the seismic rehabilitation of Buildings,” Federal Emergency Management Agency, October 1997
    5. FEMA 356, “Pre-standard and Commentary for the Seismic Rehabilitation of Buildings,” Federal Emergency Management Agency, November 2000.
    6. IS 1893 (Part I), “Indian Standard - Criteria for Earthquake Resistant Design of Structures - General Provisions and Buildings,” Bureau of Indian Standards, New Delhi, June 2002

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