Development of Ring-Shaped Steel Plate Shear Walls
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Development of Ring-Shaped Steel Plate Shear Walls
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Development of Ring-Shaped Steel Plate Shear Walls

Author: Maurya, A., Egorova, N., and Eatherton, M. | Size: 1.2 MB | Format: PDF | Quality: Unspecified | Publisher: ASCE | Year: 2013 | pages: 12


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Steel plate shear walls (SPSWs) are an attractive option for seismic lateral
load resisting systems for both new and retrofit construction. However, the current
approach to SPSWs in the U.S. typically uses very thin web plates, large boundary
elements, and requires costly moment connections. Resulting SPSWs suffer from
early buckling and subsequent tension-only plate behavior which leads to pinched
hysteretic behavior, reduced stiffness, and limited energy dissipation. Moreover, the
large boundary elements and moment connections can make SPSW less economical
than concentrically braced frames.
This paper describes a new type of SPSW referred to as ring-shaped steel
plate shear walls (RS-SPSWs) which build on the advantages of steel plate shear
walls, but have improved seismic performance, develop reduced demands on
boundary elements, and allow simple shear beam-to-column connections. RS-SPSW
reduces buckling by utilizing a unique pattern of ring-shaped cut-outs. The ring shape
acts to remove excess material in the direction transverse to the tension direction thus
reducing the amount of buckling. Its geometric features also result in more
independent variables which can be varied to separately tune aspects of system
behavior like strength, stiffness, ductility and energy absorption of the shear wall
system. This paper focuses on the effect of geometric design variables on system
behavior. After validation against experimental test results, finite element modeling
is used to perform a parametric study.

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