PSI - Issue 70

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ScienceDirect

Procedia Structural Integrity 70 (2025) 97–104

Structural Integrity and Interactions of Materials in Civil Engineering Structures (SIIMCES-2025) Seismic response assessment of steel frame building with cross braced systems in different locations of multi-storey building Vivek Kumar C a, *, R Ramya Swetha b , Tangudu Manoj c , Kulal Preetham d a Civil Engineering, Gokaraju Rangaraju Institute of Engineering and Technology, Hyderabad and 500090, India. b Civil Engineering, Institute of Aeronautical Engineering, Hyderabad and 500043, India. c Civil Engineering, CVR College of Engineering, Hyderabad and 501510, India. d Structural Engineering, Gokaraju Rangaraju Institute of Engineering and Technology, Hyderabad and 500090, India. Abstract The seismic structural design of X-braced steel buildings demands a most economical structural approach considering the architectural issues along with economic criteria and earthquake-resistant design. The study of structural engineering then contributes to improving the earthquake resistance of important infrastructure and structures by using advanced design management methods. A common structural engineering method in high-rise structures is X-bracing, which is intended to increase stability and resistance to lateral forces like wind and seismic activity. The stiffness of structures is greatly increased by X-bracing, which enables them to support horizontal loads without experiencing excess distortions. The present investigation examines the structural performance of steel high-rise structures using X-bracing configurations placed at different points along the structure, like the center and corner positions of each floor, and alternate floor locations. Examine the effects of these various locations on overall structural integrity, load distribution, and lateral stability under dynamic stresses like wind and seismic activity. By employing sophisticated modelling tools for comparative analysis, the study evaluates factors like displacement, base shear capacity, and lateral drift in various configurations in G+15 steel structure considering X Bracings in different locations by using ETABS Software as per IS 1893: 2016 codal provisions. According to preliminary results, X-bracing considerably decreases storey displacement and increases lateral stiffness in comparison to unbraced systems. As per the findings, X-bracing can be strategically positioned to maximise structural performance while meeting architectural design specifications.

© 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under the responsibility of International Conference on Structural Integrity Organizers

Keywords: "ETABS; X-Bracing; Storey Shear; Displacement; Storey Drift; Seismic response"

* Corresponding author. Tel.: +91 9791426508. E-mail address: vivekkumarcr@gmail.com

2452-3216 © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under the responsibility of International Conference on Structural Integrity Organizers 10.1016/j.prostr.2025.07.031