Title page for ETD etd-08102012-091024

Type of Document Master's Thesis
Author Maurya, Abhilasha
Author's Email Address abhi1988@vt.edu
URN etd-08102012-091024
Title Computational simulation and analytical development of Buckling Resistant Steel Plate Shear Wall (BR-SPSW)
Degree Master of Science
Department Civil Engineering
Advisory Committee
Advisor Name Title
Eatherton, Matthew R. Committee Chair
Moen, Cristopher D. Committee Member
Roberts-Wollmann, Carin L. Committee Member
  • finite element modeling
  • seismic behavior
  • plate buckling
  • hysteretic damping
  • Steel Plate Shear Wall
Date of Defense 2012-08-06
Availability unrestricted
Steel plate shear walls (SPSWs) are an attractive option for lateral load resisting systems for both new and retrofit construction. They, however, present various challenges that can result in very thin web plates and excessively large boundary elements with moment connections, neither of which is economically desirable. Moreover, SPSW also suffers from buckling at small loads which results in highly pinched hysteretic behavior, low stiffness, and limited energy dissipation. To mitigate these shortcomings, a new type of SPSW has been developed and investigated. The buckling resistant steel plate shear wall (BR-SPSW) utilizes a unique pattern of cut-outs to reduce buckling. Also, it allows the use of simple shear beam-column connections and lends tunability to the shear wall system. A brief discussion of the concept behind the BR-SPSW is presented. A detailed parametric study is presented that investigates the sensitivity of the local and global system behavior to the geometric design variables using finite element models as the main tool. The key output parameters which define the system response are discussed in detail. Analytical solutions for some output parameters like strength and stiffness have been derived and resulting equations are proposed. Finally, preliminary suggestions have been made about how this system can be implemented in practice to improve the seismic resistance of the buildings. The proposed BR-SPSW system was found to exhibit relatively fuller hysteretic behavior with high resistance during the load reversals, without the use of moment connections.
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