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ارسالی 26 August 2017 - 12:49 PM

محاسبه سازه های صنعتی برای بارهای زلزله

Industrial Building Design on Seismic Issues
Swapnil N. Dhande1, Y. R. Suryawanshi2, Pravin S. Patil3
P. G. Student, Department of Civil Engineering, Imperial College of Engineering and Research, Wagholi , Pune, India1
Assistant Professor, Department of Civil Engineering, Imperial College of Engineering and Research, Wagholi , Pune,
India2
Assistant Professor, Department of Civil Engineering, A.I.S.S.M.S. College of Engineering, Pune, India3
ABSTRACT: The structural system of the building has to support the lateral loads due to earthquake and wind in
addition to gravity loads. A lateral load develops high stresses and produces sway causing vibration and drift. If the
buildings are not designed to resist the lateral loads, then they may be collapse resulting into the loss of life or its
content. Therefore it‟s important for the structure to have not only sufficient strength against gravity loads but also the
adequate stiffness to resist lateral forces. Literature review reveals that LLRSS (Lateral load Resisting structural
system) is provided in the form of devices like base isolation and dampers which controls the seismic vibration and
lateral drift. But these devices are very costly and effective only for high rise buildings. Hence there is a need to study
the LLRSS or technology suitable for a particular height of building. The objective of this research is to propose simple
but innovative and effective LLRSS or structural technology and methodology for the seismic control which can be
used in new as well as old building structures. It is reviewed that since North earthquake (1994), concentrically braced
steel frame has gained the popularity as a LRSS in the seismic areas. In spite of increasing popularity, analytical study
of braced frame structure and its detailed requirement to control the seismic response is limited in India. Also RC
building involves heavy dead load due to large member size which intern is more prompt for seismic loss. Hence, it is
proposed to study the response of steel buildings/frames with different types of steel bracings configurations as a
LLRSS to control the vibration and storey drift. The structural response parameters selected for the study are time
period, natural frequency, and roof displacement. The research work deals with the parametric study of response of
Non-linear time history analysis (NLTHA) of 3D industrial steel buildings braced with different bracing configurations
using software (Sap-2000) under Bhuj earthquake. The bracing configuration used are SDB, CDB, VVB and INVB in
concentric bracing to suggest suitability of particular bracing configurations for the stability of the building structure
under seismic loading.
KEYWORDS: Seismic behaviour, Linear and non linear time history analysis, Response spectra, Bracing system.
 
International Journal of Innovative Research in Science,
Engineering and Technology
(An ISO 3297: 2007 Certified Organization)
Vol. 4, Issue 5, May 2015

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