Seismic Analysis In Earthquake

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CHAPTER-2 REVIEW OF LITERATURE 2.1 GENERAL Earthquakes in recent years have emphasized the need for performance-based seismic analysis. An essential element in many seismic evaluations is the determination of ultimate inelastic response of the structure. Performance-based methods require reasonable estimates of inelastic deformations or damages in structures which are better quantities to assess damage than the stresses or forces. The performance based analysis is based on quantifying the deformation of the members and the building as a whole, under the lateral forces of an earthquake of a certain level of seismic hazard. Existing codes are based on elastic analysis which has no measure of the deformation capability of members or of building. The performance based…show more content…
The difference of displacement values between static and dynamic analysis lower story are insignificant but it increases in higher stories reached at its peak in top storey or roof. The displacement of each story at center of mass of lower compared to those at the joint of maximum displacement. Prof. M.R.Wakchaure, Anantwad Shirish, Rohit Nikam (2012) This paper aimed at studying description of different plan irregularities by analytical method during seismic events. In all the studied systems from which dual system is chosen for analysis and studying its effects on different irregularities in which analysis is based on the variation of displacements, with respect to structural systems. Analyses was done to estimate the seismic performance of high rise buildings and the effects of structural irregularities in stiffness, strength, mass and combination of these factors were considered. These irregular plans were modeled Mtech (CADS), Department of Civil Engineering, VVIET , MYSORE Page

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