Computers and Concrete

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A risk-based framework for design of concrete structures against earthquake

  • Hassani, Mohammadhassan (School of Civil and Environmental Engineering, Amirkabir University of Technology) ;
  • Behnam, Behrouz (School of Civil and Environmental Engineering, Amirkabir University of Technology) ;
  • Maknoon, Reza (School of Civil and Environmental Engineering, Amirkabir University of Technology)
  • Received : 2019.12.07
  • Accepted : 2020.02.06
  • Published : 2020.02.25
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Abstract

Optimal design of structures against earthquake loads is often limited to reduce initial construction costs, while the cost induced to structures during their useful life may be several times greater than the initial costs. Therefore, it is necessary to consider the indirect costs due to earthquakes in the design process. In this research, an integrated methodology for calculating life cycle cost (LCC) of moment-resisting concrete frames is presented. Increasing seismic safety of structures and reducing human casualties can play an important role in determining the optimal design. Costs incurred for structures are added to the costs of construction, including the costs of reconstruction, financial losses due to the time spent on reconstruction, interruption in building functionality, the value of people's life or disability, and content loss are a major part of the future costs. In this research, fifty years of useful life of structures from the beginning of the construction is considered as the life cycle. These costs should be considered as factors of calculating indirect costs of a structure. The results of this work represent the life cycle cost of a 4 story, 7 story, and 10 story moment-resisting concrete frame by details. This methodology is developed based on the economic conditions of Iran in 2016 and for the case of Tehran city.

Keywords

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