Volume 7 Issue 4 - November 2016

  • 1. Analysis of building frames with floating columns and soft storeys under wind loads

    Authors : Radha Krishna Amritraj, Mohit Sheode, K.k. Pathak

    Pages : 113-129

    DOI : http://dx.doi.org/10.21172/1.74.016

    Keywords : Wind Loads, Soft Storey,Floating columns,Design wind speed,Storey drift.

    Abstract :

    With the rapid urbanization, the space constraints are always accountable in case of tall buildings. Wind has gust effects that make the building to be affected not only along wind direction but also across wind direction. In recent years, to enhance aesthetic view, various architects have started using floating columns in their designs. The rigidity of the structure is discontinuous at the soft storey level due to variation in the floor height. This discontinuity may give birth to structural failure of buildings under the effects of winds. In this study, static analysis of 3-D building frames of G+7 storeys along with floating columns as well as soft storey effects have been carried out. A total of 73 cases has been considered in which 8 cases have central floating columns on any one of the storey, whereas 64 other cases have the floating columns at a particular storey with the soft storey being varied right from ground (G) storey to G+7 storey. Apart from the above cases a simple case is formed in which any storeys is not soft nor are any columns floating. Nine load combinations have been considered. Soft storeys have been created by varying the floor heights. STAAD.Pro software has been used for analysis purpose. Results are collected in terms of max. node displacements (resultant), max. moments, max. shear force, max. axial force, maximum storey drift. Results are analyzed to draw technical conclusions.

    Citing this Journal Article :

    Radha Krishna Amritraj, Mohit Sheode, K.k. Pathak, "Analysis of building frames with floating columns and soft storeys under wind loads", https://www.ijltet.org/journal_details.php?id=909&j_id=3512, Volume 7 Issue 4 - November 2016, 113-129, #ijltetorg