A Study On Static And Dynamic Behaviour Of Outrigger Structural System For Different Structural Configuration

Abstract

In comparison to low-rise structures due to the enormous number of different structural systems and components present, high-rise structures are more complicated than short buildings because they are more vulnerable to lateral and gravitational stresses as well as earthquake and wind loads. In comparison to strength standards, the stability and stiffness criteria will thus be of much more relevance and govern the final design. Therefore, outrigger and belt-truss system are one of the most common lateral forces resisting system (LFRS). Here in this study performance-based analysis is carried out by adopting ETABS software for a B+G+24 storey tall structure. And the aim and moto of the study is to compare the structural behaviour of bare frame structure (BFS), outrigger structure(OS) and outrigger with belt-truss structure(OBS) under liner static (LSA) and linear dynamic (LDA) such as response spectrum and time history analysis. From the work carried out, we can conclude that by adopting OS and OBS the structural safety is increased against lateral loads such as earthquake. The overall structural response is improved by increasing its mass and stiffness. Among OS and OBS when compared to BFS. OBS has performed well under both static and dynamic earthquake loading and thereby enabling the outrigger system to be used more effectively and enabling the system be integrated into design rules and standards.