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- Type of Document: M.Sc. Thesis
- Language: Farsi
- Document No: 44689 (09)
- University: Sharif University of Technology
- Department: Civil Engineering
- Advisor(s): Mofid, Masoud
- Abstract:
- Tall building development has been rapidly increasing world wide introducing new challenges that need to be met through engineering judgment. In modern tall buildings, lateral loads induced by wind or earthquake are often resisted by a system of coupled shear walls. But when the building increases in height, the stiffness of the structure becomes more important and introduction of outrigger beams between the shear walls and external columns is often used to provide sufficient lateral stiffness to the structure.In general, earthquake ground motion can occur anywhere in the world and the risk associated with tall buildings, especially under severe earthquakes, should be given particular attention, since tall buildings often accommodate thousands of occupants. It is conceivable that structural collapse of such buildings can lead to disasters of unacceptable proportions.When adopting outrigger beams in building design, their location should be in an optimum position for an economical design. A range of different strategies has been employed to identify the optimum locationsof these outrigger beams under wind load.However, there is an absence of scientific research or case studies dealing with optimum outrigger location under earthquake loads.This study aims to identify the optimum outrigger location in tall buildings under earthquake loads in appearance of soil springs .Three type of building with 40,50 and 65 stories structures with corresponding 8,10 and 15 stories under earth has been Modeled and Analyzed
- Keywords:
- Spectral Analysis ; Outrigger System ; Soil-Structure Interaction ; Soil Spring ; High Buildings ; Lateral Loading
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