Comparative Analysis on Inclined Column by Using Staad Pro under Lateral Loads at Different Positions

Abstract

Abstract: Advances in construction technology, materials, structural systems and analytical methods for analysis and design facilitated the growth of high-rise buildings. Structural design of high-risebuildings is governed by lateral loads due to wind or earthquake. Lateral load resistance of structure is provided by interior structural system or exterior structural system. Usually shear wall core, braced frame and their combination with frames are interior system, where lateral load is resisted by centrally located elements. While framed tube, braced tube structural system resists lateral loads by elements provided on periphery of structure. It is very importantthat the selected structural system is such that the structural elements are utilized effectively while satisfying design requirements. Recently Inclined columns structural system is adopted in tall buildings due to its structural efficiency and flexibility in architectural planning. Compared to closely spaced vertical columns in framed tube. Inclined column should be placed at the exterior surface of the building. Due to inclined columns lateral loads are resisted by axial action of the diagonal compared to bending of vertical columns in framed structure. Inclined column structures generally do not require core because lateral shear canbe carried by the diagonals on the periphery of building. Analysis and design of G+9 storey building is presented. A regular floor plan of 36 m × 36 m size is considered. Staad pro software is used for modelling and analysis of structural members. All structural members aredesigned as per IS 456:2000 considering all load combinations. Dynamic along wind and across wind are considered for analysis and design of the structure. Load distribution in system is also studied for G+9 storey building. Similarly, analysis and design of G+9 storey vertical column structures is carried out with and without weak storey. Comparison ofanalysis results in terms of time period, top storey displacement and inter-storey drift will be presented in this study with or without inclined column in frame structure.