Seismic Evaluation Using Non-Linear Time History Analysis
| dc.contributor.advisor | Shifferaw, Taye (Assoc. Prof.) | |
| dc.contributor.author | Netsanet, Teferra | |
| dc.date.accessioned | 2018-12-14T11:28:25Z | |
| dc.date.accessioned | 2023-11-11T12:51:40Z | |
| dc.date.available | 2018-12-14T11:28:25Z | |
| dc.date.available | 2023-11-11T12:51:40Z | |
| dc.date.issued | 2018-07 | |
| dc.description.abstract | A building subjected to earthquake is expected to show inelastic behavior that the deformation in a member does not remain proportional to the internal force. A non-linear analysis accounts for the inelastic response. Both material non-linearity and geometric non-linearity case considered. There is plastic deformation and energy absorption in a member for higher levels of internal force. This type of nonlinear behavior is referred to as material non linearity. Several different hysteresis models are available to describe the behavior of different types of materials. For the most part, these differ in the amount of energy they dissipate in a given cycle of deformation, and how the energy dissipation behavior changes with an increasing amount of deformation. Pivot hysteresis model is used. This thesis work uses fifteen story and two basement building of 40/60 project of City Government of Addis Ababa Saving House Enterprise as a case study. A comparison is made between linear elastic analysis and non-linear time history in-terms of story Displacement, Inter-story drift, story Shear, Axial force and Torsion. Thus it should not be surprising that buildings suffer damage during intense ground shaking. The main focus of this work is to evaluate the seismic resistance by using non-linear time history analysis so that the damage will be controlled to an acceptable degree. Seismic input to nonlinear dynamic analyses of structures is usually defined in terms of acceleration time series. Three references Earthquake Ankober 2016, EL-Centro 1940 and Sierra-madre 1991 is used to generate artificial time history using time-domain method. The time domain method is generally considered a better approach for spectral matching since this method adjusts the acceleration time histories in the time domain by adding wavelets. The major advantage of using the forces obtained from a time history analysis as the basis for a structural design is that the vertical distribution of forces may be significantly different from the forces obtained from an equivalent static load analysis. | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/12345678/15121 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | AAU | en_US |
| dc.subject | Non-Linear Time History Analysis | en_US |
| dc.subject | geometric non-linearity | en_US |
| dc.title | Seismic Evaluation Using Non-Linear Time History Analysis | en_US |
| dc.type | Thesis | en_US |