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ارزیابی بر اساس ارزش سیستم های سازه ای متداول در صنعت انبوه سازی مسکن با توجه به هزینه چرخه عمر با روش زمان دوام
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ارزیابی بر اساس ارزش سیستم های سازه ای متداول در صنعت انبوه سازی مسکن با توجه به هزینه چرخه عمر با روش زمان دوام

شمسی، امیر محمد Shamsi, Amir Mohammad

Value-Based Assessment of Common Structural Systems in the Mass Housing Industry Considering Life Cycle Cost with the Endurance Time Method

Shamsi, Amir Mohammad | 2023

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 56523 (09)
  4. University: Sharif University of Technology
  5. Department: Civil Engineering
  6. Advisor(s): Esmaeil Pourestekanchi, Homayoon
  7. Abstract:
  8. The aim of this research is to evaluate and compare the performance of common concrete and steel structural systems in the construction industry under various parameters, including initial construction cost, lifetime seismic losses, end-of-life costs of the structure, and simultaneous consideration of these parameters. In this regard, a residential building with real architectural plans and details was designed for five different structural systems, both concrete and steel, and their initial construction costs were calculated using executive drawings. Then, using Endurance Time dynamic analysis, the structural responses under probable seismic hazard levels was determined, and based on FEMA-P58 guidelines, their expected damage and losses over the service life of the structure were calculated. Additionally, the end-of-life costs of the buildings were estimated for two aspects: demolition and management of construction waste (through reuse, recycling, or landfilling). Finally, considering a decision-making framework, the performance of the structures was examined under each parameter individually and in the presence of simultaneous parameters. By comparing the option values, a suitable structural system was recommended. It was observed that the choice of a concrete moment frame system would have the lowest initial construction cost, while selecting a steel moment frame system would have the highest cost. Furthermore, the life cycle cost criterion, which includes the simultaneous effect of the parameters of initial construction cost, seismic losses, and end-of-life cost, was taken into account, and more optimal structural systems were proposed based on the assigned weights to the parameters. According to this evaluation, the concrete tunnel formwork system performed the best, while the combined system of steel moment frame and special concentrically braced frame exhibited the worst performance
  9. Keywords:
  10. Seismic Design ; Nonlinear Dynamic Analysis ; Endurance Time Method ; Life Cycle Cost (LCC) ; Value Engineering ; Performance Evaluation ; Seismic Risk Index ; Initial Construction Cost

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