An analysis to low-cycle fatigue phenomenon and its impact on seismic behavior and structural design

An analysis to low-cycle fatigue phenomenon and its impact on seismic behavior and structural design

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Part of #An analysis to low-cycle fatigue phenomenon and its impact on seismic behavior and structural design# :

Publishing year : 2016

Conference : The 2nd International Conference on New Research Findings in Civil Engineering, Architecture and Urban Management

Number of pages : 8

Abstract: A seismic design procedure that does not take into account the maximum and cumulative plastic deformation requires that a structure likely to undergo severe earth motion could lead to unsatisfactory performance. Current seismic design methodologies do not spot some variants relative to seismic Design into the strong motions. Particularly inadtentionally, the plastic deformation and the probable significant reduction in lateral strength can result in irreparable results in soft soils subject to the cycles of motion. It is a total correspondence to contrast with low cycle cavity. And several recommendations were proposed on the quality of its influence in seismic design. For sense-to-performance, the seismic design problem should be evaluated. Seismic design methods that account for low cycle fatigue can be formulated using simple damage models. The practical use of one such methodology requires consideration of the severity of repeated loading through a normalized plastic energy parameter. Damage models that quantify the severity of repeated plastic cycling through plastic energy are simple tools that can be used for practical seismic design. The concept of constant cumulative ductility strength spectra, developed from one such model, is a useful tool for performance based seismic design. And can be used to estimate the design of the lateral strength of structures against the accumulated plastic deformations.