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Behavior of a Single-layer Latticed Cylinder Steel Shell with a Long Span under Wind Load

Daghestani, Shahrooz | 2016

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  1. Type of Document: M.Sc. Thesis
  2. Language: English
  3. Document No: 48665 (53)
  4. University: Sharif University of Technology, International Campus, Kish Island
  5. Department: Science and Engineering
  6. Advisor(s): Khalu, Alireza
  7. Abstract:
  8. Single-layer steel grid shell structures are a good structural solution to new buildings by specific properties that are required by long-span structures and provide at the same time the opportunity to produce immense verity of design shapes and free form architecture; complex curved surfaces expect to be covered with low weight material. A grid shell is essentially a shell with its structure concentrated into individual linear element in relatively thin grid compared to the overall dimension of the grid shell. This research investigates single-layer grid structures with emphasis on design of load details. The application of single-layer for transparent structures enhances use of glazed decks, where covered space stands out because of the extreme transparency with long span. With these structures, architects and engineers can design authentic "shells", with a considerable omission of structural elements, where the structure has less thickness. Investigation of the dynamic behavior of structures under wind pressure could provide valuable data to help determine the specific design criteria. To achieve the above-mentioned objectives numerical model studies will be examined by modeling in ABAQUS software, so that a set of models will be produced to evaluate the structural behavior of such systems. The results of this study will be shown as parameters in the form of diagrams to use in preliminary design of the structure under wind loads, earthquake and snow load . Based on the results displacement and shear stress were computed in each step and compare dynamic procedure with static procedure and as expected the results in dynamic approach (amounts of stress and displacement) are less than static procedure it takes that the sections, displacement and stresses are smaller
  9. Keywords:
  10. Winds ; Cylinder ; Dynamic Analysis ; Long Span ; Shell Structures ; Single-Layer Grid Shell

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