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Numerical Study of Stiffener Effects on Composite Shear Wall Performance

Taherkhani, Amir | 2016

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 49148 (09)
  4. University: Sharif University of Technology
  5. Department: Civil Engineering
  6. Advisor(s): Khaloo, Alireza
  7. Abstract:
  8. Concrete filled double-steel-plate (CFDSP) composite wall is a new lateral resisting system that recently used in design and strengthening of high-rise buildings. This CFDSP composite wall is composed of concrete filled steel tubular columns at the two boundaries and concrete filled double-steel-plate wall body. The main advantage of this system is the interaction between steel and concrete which delays local buckling of steel plates. Also, steel jacket increases the strength of concrete in result of confinement effects. Furthermore, these systems have lower thickness compared to ordinary concrete shear walls. Hence, they have less structural weight which reduces the earthquake force. Better resictance capacity, fast construction, enhanced energy absorpsion capacity and higher ductility are some other features of these systems. In this thesis, the effects of stiffeners on the CFDSP composite were investigated. In this regard, a finite element software, ABAQUS, was utilized to study the effects of longitudinal, transverse and diagonal stiffeners at different configurations. It was observed that the use of stiffeners increases energy absorption capacity, improves load-displacement curve, delays the local buckling of steel plates in order to maximize the usage of steel plate capacity and reduces the thickness of steel plates
  9. Keywords:
  10. Stiffener ; Seismic Behavior ; Local Buckling ; Steel Plate Shear Wall (SPSW) ; Double Steel Plate Composite Sheer Wall ; Concrete Filled with no Reinforcement

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