Author(s): Shital S Wani, Pranav G Kokate, Ankush S Londhe, Shubham B Malge and Aniket N Potdar

Abstract: Construction of multi‐storey building is hastily growing in the course of the world. Advancement in construction technology, materials, structural systems, design and analysis software helped the growth of such buildings. Diagrid structures are rising as structurally efficient as well as architecturally significant for tall structures. Recently the diagrid structural system has been broadly used for tall structures due to its structural efficiency and aesthetic look. Generally, for tall buildings steel diagrid structural system is used. In this paper a regular G+9 storey steel building with plan of size 21.6 m × 21.6 m is considered, located in seismic zone III with zone factor 0.16. Modelling and analysis of structural members are done using Staad.Pro software. All structural members are designed considering IS 800:2007 and load combinations of seismic forces are considered as per IS 1893(Part 1): 2002. Three cases with 45⁰, 63.43⁰ and varying angle for two storey module and three storey module for diagrid structural systems are considered. Comparison of analyzed results in terms of storey drift, storey displacement, and steel usage aspect is presented.It is concluded that 45⁰ diagrid system is most suitable from all aspects compared with the conventional system.

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