Performance of Lateral Loads Resisting Systems for Tall Steel Structure

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Amit K. Mali, Hiral R. Luhar, Dipak N. Mali, Rajesh V. Sonagara, Snehal V. Mevada

Abstract

In modern age, as the construction of high-rise buildings and mega structures increases which decreases
availability of land and increases land cost, to overcome that problems engineers have to go vertically by constructing tall
structures. There are various lateral load resisting systems for tall structure, among them bracing systems, shear wall
systems, outrigger systems and diagrid systems are selected for this work.For G+19 storied building, the structure is not
provided with any lateral load resisting system then it is difficult to construct conventional structure. Parametric study and
detailed comparison of various lateral load resisting system with respect to conventional structure was carried out for regular
buildings. In this study bracing systems, shear wall systems, outrigger systems and diagrid systems are analyzed and
designed. The study mainly focused on to determining the most effective and economical lateral load resisting system which
can resist lateral forces effectively. Various parameters like maximum top lateral displacement, maximum base shear,
Structure weight, maximum storey displacement and maximum storey drift are considered in this study. Bracing system was
most economical and lighter structural system as compared to conventional systems and all other lateral load resisting
systems.

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