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Progressive Collapse Analysis of Multi Storey Steel Structure with Bracing Systems using E-Tabs

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Progressive Collapse Analysis of Multi Storey Steel Structure with Bracing Systems using E-Tabs


Rekha M N | Dr. S Vijaya | Dr. B Shivakumara Swamy



Rekha M N | Dr. S Vijaya | Dr. B Shivakumara Swamy "Progressive Collapse Analysis of Multi Storey Steel Structure with Bracing Systems using E-Tabs" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-6, October 2020, pp.973-977, URL: https://www.ijtsrd.com/papers/ijtsrd33544.pdf

Progressive collapse refers to the phenomenon in which the local damage of a primary structural element leads to total or partial structural system failure, without any proportionality between the initial and final damage. Even if the probability of structural collapse is low, if it occurs, it can cause significant losses. In the past few decades, many incidents of the total or partial collapse of structures due to fire, explosions or impacts have occurred. In the present study, Multi storey structure is considered. The modelling and analysis are carried out using E-tabs software. The different bracing systems are used to analysis the structural behavior. The Structure is later verified for progressive collapse analysis at 3 different locations such as corner, Centre and middle of the structure. The progressive analysis is carried out and results are extracted and discussed. The displacement control can be easily achieved by providing bracings. The displacement of bare frame models can be reduced by 55%, 55% and 63% by adopting bracings such as Diagonal bracing, V Bracing and X Bracing systems. The progressive collapse analysis shows the failure of upper level beams. It is estimated that, the maximum increase in percentage of DCR value for beams are around 38%, 52% and 59% for location A, B and C respectively. And hence the beams are super designed for these additional capacities to avoid progressive collapse. From the overall results, it is concluded that, the bracings are very much necessary for the reductions of displacement and drift effect in a building. However, its Importance is not of much use in case of progressive collapse state. The X Bracings are preferred for bracing system.

Progressive collapse, equivalent static analysis, bracings, displacements, storey drift, base shear, time period, acceleration, E-Tabs


IJTSRD33544
Volume-4 | Issue-6, October 2020
973-977
IJTSRD | www.ijtsrd.com | E-ISSN 2456-6470
Copyright © 2019 by author(s) and International Journal of Trend in Scientific Research and Development Journal. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0) (http://creativecommons.org/licenses/by/4.0)

International Journal of Trend in Scientific Research and Development - IJTSRD having online ISSN 2456-6470. IJTSRD is a leading Open Access, Peer-Reviewed International Journal which provides rapid publication of your research articles and aims to promote the theory and practice along with knowledge sharing between researchers, developers, engineers, students, and practitioners working in and around the world in many areas like Sciences, Technology, Innovation, Engineering, Agriculture, Management and many more and it is recommended by all Universities, review articles and short communications in all subjects. IJTSRD running an International Journal who are proving quality publication of peer reviewed and refereed international journals from diverse fields that emphasizes new research, development and their applications. IJTSRD provides an online access to exchange your research work, technical notes & surveying results among professionals throughout the world in e-journals. IJTSRD is a fastest growing and dynamic professional organization. The aim of this organization is to provide access not only to world class research resources, but through its professionals aim to bring in a significant transformation in the real of open access journals and online publishing.

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