Loading...

Value Based Seismic Design of Concrete Structures by Endurance Time Method

Mirfarhadi, Ali | 2015

524 Viewed
  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 47862 (09)
  4. University: Sharif University of Technology
  5. Department: Civil Engineering
  6. Advisor(s): Esmaeil Pourestekanchi, Homayun
  7. Abstract:
  8. The aim of this research is value based optimum design of structures to minimize the costs imposing on them during lifetime. For this purpose, an optimization procedure is used to get optimum solutions. Therefore, in this optimization problem, total costs are objective functions and required limits of codes are as the constraints. The costs include initial costs of constructing and life cycle costs. The weight of structural components and seismic consequences during the lifetime of structure are used as a criterion to assess initial costs and life cycle costs, respectively. In this research, seismic losses are determined based on the probabilistic seismic assessment framework, which depends on the maximum dynamic response of structure in different seismic levels. In this study by using Genetic Algorithm optimization problems are solved. Also, according to the high computational time of required dynamic analyses, the Endurance Time method is used which decreases the computational time simultaneously the dynamic predicted responses are accurate enough. Finally, seismic performance of optimum structures gained by value-based design approach is compared to structures designed based on prescriptive codes. Results show that conformance to design code requirements does not assure achieving the best design regarding the overall design values
  9. Keywords:
  10. Optimization ; Earthquake Engineering ; Endurance Time Method ; Nonlinear Dynamic Analysis ; Performance Based Design ; Life Cycle Cost (LCC) ; Value Based Seismic Design

 Digital Object List

 Bookmark