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Seismic hazard analysis and obtaining uniform hazard spectra for rasht region, iran
, Article Proceedings of the Annual International Conference on Architecture and Civil Engineering, 27 May 2019 through 28 May 2019 ; 2019 , Pages 278-284 ; 2301394X (ISSN) ; Hadinejad, A ; Anderson M. S. T ; Anderson P. C. O ; Sharif University of Technology
Global Science and Technology Forum
2019
Abstract
— In this study probabilistic seismic hazard analysis is carried out for Rasht province, a city located in IRAN, and assessment of probable Peak Ground Acceleration (PGA) and uniform hazard spectra (UHS) for two levels of hazard are presented. Achieving this goal, seismic catalogues of all historical instrumentally recorded earthquakes since 4 th century BC up to 2018, in a radius of 200 km around Rasht city, has been gathered and processed for elimination of the aftershocks and foreshocks from main occurrences list and then the seismicity parameters have been obtained by Kijko [2000] method. In order to determine the PGA over bedrock, tree different attenuation relationships of Sadigh et...
Seismic hazard analysis and obtaining uniform hazard spectra for rasht region, iran
, Article Proceedings of the Annual International Conference on Architecture and Civil Engineering, 27 May 2019 through 28 May 2019 ; 2019 , Pages 278-284 ; 2301394X (ISSN) ; Hadinejad, A ; Sharif University of Technology
Global Science and Technology Forum
2019
Abstract
— In this study probabilistic seismic hazard analysis is carried out for Rasht province, a city located in IRAN, and assessment of probable Peak Ground Acceleration (PGA) and uniform hazard spectra (UHS) for two levels of hazard are presented. Achieving this goal, seismic catalogues of all historical instrumentally recorded earthquakes since 4 th century BC up to 2018, in a radius of 200 km around Rasht city, has been gathered and processed for elimination of the aftershocks and foreshocks from main occurrences list and then the seismicity parameters have been obtained by Kijko [2000] method. In order to determine the PGA over bedrock, tree different attenuation relationships of Sadigh et...
Probabilistic Estimation of Maximum Inelastic Displacement Demands for Performance-Based Design Considering Soil-Structure Interaction
, M.Sc. Thesis Sharif University of Technology ; Rahimzadeh Rofooei, Fayaz (Supervisor)
Abstract
In the current design Codes, the estimation of maximum inelastic Single Degree Of Freedom (SDOF) displacements is done through simplified procedures by either applying modification factors on maximum SDOF elastic displacement demands or by considering equivalent SDOF systems with elongated fundamental period and increased damping ratio. Thus, the inherent uncertainty caused by approximating maximum inelastic displacements with maximum elastic displacements is neglected. On the other hand, in time history dynamic analysis of structures, the free field recorded ground motions are applied to the base of structures. Obviously, this procedure would be correct when the structure is built on firm...
Uniform hazard response spectra and ground motions for tabriz
, Article Scientia Iranica ; Volume 16, Issue 3 , 2009 , Pages 238-248 ; 10263098 (ISSN) ; Fanaie, N ; Hamzehloo, H ; Sharif University of Technology
2009
Abstract
Tabriz has experienced several large destructive historical earthquakes in the past. Due to the absence of ground motion records in this area, a simulation of future events based on a regional seismicity information and ground motion model is necessary. Based on a maximum likelihood method, earthquake magnitude is estimated for a 10% probability of exceedance within 50 years (475-year return period) and its corresponding strong ground motions have been simulated using stochastic finite fault modeling. Using different stress parameters, suites of ground motions have been simulated for a return period of £75 years and their spectral accelerations have been compared with the corresponding...