Stability of buckling-restrained steel plate shear walls with inclined-slots: Theoretical analysis

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Stability of buckling-restrained steel plate shear walls with inclined-slots: Theoretical analysis and design recommendations

Shuangshuang Jin a, Jinping Oua,b,⁎, J.Y. Richard Liewc,d
a School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China
b Key Lab of Structures Dynamic Behavior and Control (Harbin Institute of Technology), Ministry of Education, Harbin 150090, China
c Department of Civil & Environmental Engineering, National University of Singapore, Singapore
d College of Civil Engineering, Nanjing Tech University, China

 

a b s t r a c t
Article history:
Received 19 April 2015
Received in revised form 27 September 2015
Accepted 2 October 2015
Available online xxxx
Keywords:
Energy dissipation device
Steel plate shear wall (SPSW)
Buckling-restrained
Stability
Numerical analysis
Design
This paper presents a novel buckling-restrained steel plate shear wall with inclined slots called slotted SPSW to
be used as an energy dissipation device for earthquake resistance. In the slotted SPSW, a steel plate with inclined
slotted holes is sandwiched in between two external concrete panels which provide lateral restraint to achieve
stable energy dissipation under cyclic reversal loading. Theoretical analysis and finite element monotonic pushover
analyses are conducted to investigate the stability of slotted SPSWs. Global buckling and local buckling resistances
of slotted SPSWs are determined. Some key parameters, such as the gap between steel plate and
concrete panels, bolt spacing, width of steel strips, and steel panel slenderness, are investigated through numerical
analyses. The shear force and lateral drift behavior of the slotted SPSW is found to be affected by the physical
gap between the concrete panels and inner steel plate. The minimumconcrete panel thickness for providing the
effective lateral restraint to prevent buckling failure of the inner steel plate is determined based on the bolt
spacing.

 

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