Advanced Steel Construction

Vol. 12, No. 2, pp.154-173 (2016)


BEHAVIOUR OF SEMI-RIGID STEEL FRAMES WITH STEEL PLATE SHEAR WALLS

 

J.G. Yu 1,* and J.P. Hao 2

1 Associate Professor, Department of Civil Engineering,

Xi’an University of Architecture and Technology, Xi’an, China

2 Professor, Department of Civil Engineering,

Xi’an University of Architecture and Technology, Xi’an, China

*(Corresponding author: E-mail:This email address is being protected from spambots. You need JavaScript enabled to view it.)

Received: 17 February 2015; Revised: 7 May 2015; Accepted: 28 July 2015

 

DOI:10.18057/IJASC.2016.12.2.5

 

ABSTRACT:

This paper describes an investigation on the seismic behaviour of a new lateral resistance systemwhich combines semi-rigid steel frames (SRSFs) with steel plate shear walls (SPSWs). A laboratory test, includingtwo 1/3-scale one-bay, two-storey SRSFs with SPSWs, was conducted to study the influence of the stiffeners onSPSWs and the stiffness of beam-column connections. The results indicate that the new system inherits the meritsboth of SRSFs and SPSWs. It exhibits excellent seismic performance in terms of load carrying capacity, ductility,stiffness and energy dissipation. The stiffeners on SPSWs not only effectively reduce the forces taken by beams andcolumns but also improve the overall cyclic performance of structural systems. Moreover, they increase the initialstiffness and buckling load capacity of SPSWs especially. Further, the finite element analysis method was adoptedfor parametric study of the influence of connection stiffness and stiffener rigidity on the behaviour of SRSF-SPSW. Itdemonstrates that the SPSW in the proposed structural system undertakes 70%-80% of overall lateral load. Theinfluence of connection stiffness on the load carrying capacity depends on the stiffness of columns and thickness ofinfill plates. This influence is enlarged with increasing stiffness of columns and reducing thickness of infill plates.The load carrying capacity of a structural system is increased by 42.2% when connections are changed from pin to rigid.Generally, this research provides a basis for engineering application and theoretical analysis of the SRSF-SPSW structural system.

 

Keywords:Steel frame, Semi-rigid connection, Steel plate shear wall, Seismic behavior, Beam-column connectionstiffness, Nonlinear finite element analysis

 

 

Download PDF: