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Experimental Evaluation of Light Frame Steel Shear Wall with K-Braced and Suitable Sheathing under Cyclic Loading

Pourabdollah, Omid | 2013

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  1. Type of Document: M.Sc. Thesis
  2. Language: English
  3. Document No: 45186 (53)
  4. University: Sharif University of Technology, International Campus, Kish Island
  5. Department: Science and Engineering
  6. Advisor(s): Rahimzadeh Rofooei, Fayyaz; Farahbod, Farhang
  7. Abstract:
  8. Nowadays because of imbalance in supply and demand in the house industry, industrialization of building construction is one of the best ways to solve this problem. Currently, there is a strong tendency to develop guidelines for the design of Cold-Formed Steel (CFS) with different sheathing boards as seismic resistant shear walls. Also, the behavior of this systems is not very well known yet and more research is needed. In this work three K-braced frames with and without sheathing boards under lateral cyclic loading investigated experimentally. The first specimen as a control specimen is without sheathing board, second specimen was sheathed with Fibre-Cement board in one side and gypsum board in the other side. In the third specimen changing the arrangement of K-braced, as well as doubling the nogging and adding screws was tested. The results show that using nonstructural sheathing can increase shear resistance of CFS system ten times in comparison to the unlined wall. Moreover, changing the arrangement of the K-braced elements and improving their connection by using more screws lead to 50% increase in lateral resistance of K-braced. Increasing of ductility factor and energy absorption in tests two and three compared to control specimen occurred
  9. Keywords:
  10. Hysteresis Test ; Cold Formed Steel ; Concrete Resistance ; Coverage ; K-Braced ; Coverage

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