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Finite Element Analysis of Reinforced Concrete Waffle Slabs in Steel Structures “Strength Conditions”

Fekri, Mohsen | 2018

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  1. Type of Document: M.Sc. Thesis
  2. Language: English
  3. Document No: 50657 (53)
  4. University: Sharif University of Technology, International Campus, Kish Island
  5. Department: Science and Engineering
  6. Advisor(s): Eskandari, Morteza; Kazemi, Mohamad Taghi
  7. Abstract:
  8. Building weight reducing idea and implementation of Lightweight Structures were always attractive for structural engineering experts, scholars and researchers around the world and its proven effects on improving behavior and reducing the forces acting on the structure, has urged researchers to create new designs. Concrete slabs are of a significant portion of the overall weight of the structure. Nowadays, waffle slabs are a demand for structural designers, as a consequence of architectural design evolution and new building management concepts, in spite of its laborious numerical modeling. The objective of this work was to analyze the adequacy of a design method widely used in the modeling of waffle slabs interaction with steel columns as its supports in steel frames, verifying if it represents the slab behavior satisfactorily. A real scale waffle slab lied on a single steel column and submitted to ultimate loads was analyzed with FE method for measuring specific damage, stress and deflection in different points. The numerical analysis was made using ABAQUS/CAE commercial FEM software in structural analysis. Results showed that the corners of roof openings in place of the column are the most critical part of the structure, and the damage starts from these points. The deflation in SAFE software is more than that in ABAQUS software
  9. Keywords:
  10. Reinforced Concrete ; Finite Element Method ; Damage ; Waffle Slab ; Ultimate Conditions

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