EFFECT OF VERTICAL DISCONTINUITY OF COLUMNS IN R.C FRAMES SUBJECTED TO DIFFERENT WIND SPEEDS IN INDIA

M. Pavan Kumar, Singuri Sirisha

Abstract: Majority of structural systems are designed with various levels of irregularities in accordance with architectural requirements in order to produce aesthetic buildings. Irregular structures come into being due to discontinuity in mass, stiffness and strength in elevation and due to asymmetric geometrical conCharturation on plane. One of the irregularities in elevation is discontinuity of columns. In the present study, effects of the structural irregularity which is produced by the discontinuity of a columns in RC space frames subjected to different wind loads was investigated. Investigation was carried out for R.C space frames, with and without vertical discontinuity of columns for G+5, G+10 & G+15 storeys, assumed to be located in different wind zones in India. Both regular and irregular structures were analysed using STAADPro. From the study, it was concluded that frames without vertical discontinuity of the columns having more stiffness when compared to frames with vertical discontinuity of columns.

Keywords: Structural irregularity, Vertical discontinuity, Discontinuity of columns, Wind loads.

DOI: https://doi.org/10.15623/ijret.2015.0404041