Pushover Analysis In Architecture
Chapter 2
LITERATURE REVIEW
2.1 REVIEW OF LITERATURE
GOVIND M et al., has discussed that the expectation is that the pushover analysis will adequate information on seismic demands imposed by design ground motion on the structural system and its components. In the recent advent for structural design for particular level of earthquake performance, such as immediate post-earthquake occupancy, (termed as performance based earthquake engineering ), has resulted in guidelines such as ATC-40,FEMA-356 and standards such as ASCE-41.among the different types of analysis, pushover analysis comes forward because of its optimal accuracy, efficiency and ease of use. Considered structure of behaviour as G+20 storied R.C frame buildings (H shape in plan, with
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And he considered nonlinear relationship between the lateral shear force and lateral deformation of R.C Framed G+5 story building is calculated first by the static analysis and then go through the pushover analysis by using ETABS software. The pushover analysis was including 8 steps it has been observed that one sub sequent push to building, hinges started forming in beams first. Initially hinges were in A-B stage and subsequently proceeding to B-IO stage. Out of 198 hinges 194 in A-B stage, 4 in B-IO stage. Overall performance of building is said to be B-IO …show more content…
The pushover analysis is based, target displacement estimation of MDOF structure through SDOF domain. Importance of lateral load pattern on pushover analysis, the conditions under which pushover analysis are adequate or not and the information obtained from pushover analysis were identified. The pushover predictions were evaluated on a 4-story steel perimeter frame damage in 1994 north ridge earthquake. The frame was found that nine-ground motion records Gobal and Local seismic demands were calculated from pushover analysis results at the target displacement associated with individual records. The comparison of nonlinear dynamic analysis pushover analysis provides good prediction of seismic demands for low-rise structures having uniform distribution of in-elastic behaviour over the height. It was also recommended to implement pushover analysis with caution and judgment considering its many limitations since the method is approximate in nature and it contains many unresolved issues that need to be
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