Study on Horizontal and Vertical Irregularities in Structures Under Seismic Load – A Review

An increase in population has led more often towards vertical development rather than horizontal development, because of this the demand for multi-storied buildings has increased and they constitute about 60-70% of the urban infrastructure. In the present time, the analysis of civil structures is generally carried out by various design software. Now a day’s irregular structures contribute a large portion of urban infrastructure. Irregular structures have certain physical discontinuities either in plan or in elevation or both which affect the performance of the structure subjected to lateral loads. This work reviews the analysis done by various researchers in multi storey reinforced concrete structures subjected to seismic load.