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Design and Analysis of Plan Symmetrical and Asymmetrical Building with or without Base Isolation

Author(s):

Sumit Raghav , BIMT, HARYANA; Mr. Nitish Kumar, BIMT, HARYANA

Keywords:

Earthquake Resistant Structures, Symmetrical & Asymmetrical Building, ETAB Software, Lead Rubber Bearings (LRB)

Abstract

Earthquake resistant structures are kind of structures which are designed to protect buildings against collapsing due to effect of earthquake; while structure can be entirely immune to damage from earthquakes, the goal of earthquake-resistant construction is to erect structures that fare better during seismic activity than their conventional counterparts. According to various building codes, earthquake resistant Buildings are intend to with stand the largest earthquake of a certain probability that is likely to occur at their position. This means that the loss of people should be reduced or minimized by preventing collapse of the buildings for rare earthquakes while the loss of the functionality should be limited for more frequent ones. In this report, Base Isolation is used for the construction of earthquake resistant building. Base isolation is that type of system which decreases the effect of earthquake in terms of displacement, base shear and in many others terms. Base isolation system consists of isolators which are used to reduce the effects of earthquake. At present time, the magnitude of earthquake is very high. In this thesis report, we consider Seismic Zone-IV for G+14 building for the evaluation of Time period, base shear and displacement with considering 4 models in ETAB software i.e. fixed base and isolated base. Base isolation is type of method generally known as a-state of-the-art method in which the structure above ground level, the structure is separated from the base below ground level by introducing a suspension system between the main structure and the base. This phenomena Base isolation is popularly termed as seismic isolation system which is a collection of structural elements which should substantially decouple a structure above ground level from its structure below ground level resting on a shaking ground thus protecting the building’s structural integrity. The fundamental principle of this phenomena i.e. base isolation is to modify the response of the building so that the ground can shake below the building without transmitting these motions into the structure. Base isolation system deflects & absorbs the energy released from the earthquake before it is transferred to the structure.

Other Details

Paper ID: IJSRDV7I40782
Published in: Volume : 7, Issue : 4
Publication Date: 01/07/2019
Page(s): 732-736

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