Modified Plate Frame Interaction method for evaluation of steel plate shear walls with beam-connected web plates

Steel plate shear walls consist of thin infill steel plates attached to beams, called (horizontal boundary elements, HBEs), and columns (vertical boundary elements, VBEs) in structural steel frames. The thin unstiffened web plates are expected to buckle in shear at low load levels and develop tension field action, providing ductility and energy dissipation through tension yielding of the web plate. HBEs are designed for stiffness and strength requirements and are expected to anchor the tension field formation in the web plates. VBEs are designed for yielding of web plates and plastic hinge formation at the ends of the HBEs. This design approach may result in very large demand on boundary frame members, especially VBEs in most cases. Several methods such as using LYP, perforating the infill plate and omitting connection of infill plate to columns have been proposed to reduce the moment and axial force demands on the VBEs. The main purpose of this research is to study the behavior of steel plate shear walls with various connection of infill plate to columns in multi span moment frames. A numerical study has been performed in order to investigate the behavior of such a system. The results of proposed system were compared with those of the conventional SPSWs. Results show that reducing the infill plate connection to columns will reduce the axial forces in columns.

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Strip model for steel plate shear walls with beam-connected web plates

Engineering Structures ◽

10.1016/j.engstruct.2017.01.051 ◽

2017 ◽

Vol 136 ◽

pp. 369-379 ◽

Cited By ~ 17

Author(s):

Yigit Ozcelik ◽

Patricia M. Clayton

Keyword(s):

Steel Plate ◽

Shear Walls ◽

Steel Plate Shear Walls ◽

Web Plates

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Strip Model Analysis for Steel Plate Shear Walls in Earthquake Resistant Structures

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.763.743 ◽

2018 ◽

Vol 763 ◽

pp. 743-750 ◽

Cited By ~ 1

Author(s):

Eduardo Totter ◽

Antonio Formisano ◽

Federico M. Mazzolani ◽

Francisco Crisafulli

Keyword(s):

Energy Dissipation ◽

Steel Plate ◽

Shear Walls ◽

Boundary Elements ◽

Shear Wall ◽

Nonlinear Behaviour ◽

Steel Plate Shear Walls ◽

Steel Plate Shear Wall ◽

Vertical Boundary ◽

Web Plates

Unstiffened Steel Plate Shear Walls (SPSWs) are very effective structural systems designed to resist lateral forces. SPSW systems consist of thin web plates infilled within frames of steel horizontal and vertical boundary elements. The thin unstiffened web plates are expected to buckle in shear and to develop diagonal tension field after buckling under the action of horizontal loads. For unstiffened steel plates, buckling in shear occurs in the elastic range at low stress levels. This behaviour provides strength, stiffness and ductility and allows to have an appropriate level of energy dissipation through tension yielding of the web plates. This paper assesses the inelastic structural response and behaviour of Steel Plate Shear Wall systems using both a modified strip model approach and a new simplified strip model for only beam connected SPSWs. Both models are developed with plasticity concentrated elements and the performed analyses include the nonlinear behaviour of strips, also considering the compressive forces effects over the strip model elements. This research indicates fundamental aspects of the seismic performance of Steel Plate Shear Wall systems, such as energy dissipation capacity, panel ductility demand, seismic inter-story drift and design load demands in Vertical Boundary Elements (VBE) and Horizontal Boundary Elements (HBE) of the frame. The results obtained from the use of these models are compared with selected experimental and numerical results to enrich the research conclusions.

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Experimental and Numerical Research on Steel Plate Shear Wall with Infill Plate Connected to Beam Only

Civil Engineering Journal ◽

10.28991/cej-0309113 ◽

2018 ◽

Vol 4 (3) ◽

pp. 526

Author(s):

Amirhosein Raisszadeh ◽

Ardeshir Deylami ◽

Alireza Rahai

Keyword(s):

Experimental Study ◽

Steel Plate ◽

Numerical Models ◽

Plastic Hinge ◽

Shear Walls ◽

Boundary Elements ◽

Initial Stiffness ◽

Steel Plate Shear Walls ◽

Web Plates ◽

The Web

Steel plate shear walls consist of thin infill steel plates attached to beams, called (horizontal boundary elements, HBEs), and columns (vertical boundary elements, VBEs) in structural steel frames. The thin unstiffened web plates are expected to buckle in shear at low load levels and develop tension field action, providing ductility and energy dissipation through tension yielding of the web plate. HBEs are designed for stiffness and strength requirements and are expected to anchor the tension field formation in the web plates. VBEs are designed for yielding of web plates and plastic hinge formation at the ends of the HBEs. This design approach may result in very large demand on boundary frame members, especially VBEs in most cases. Several methods such as using LYP, perforating the infill plate and omitting connection of infill plate to columns have been proposed to reduce the moment and axial force demands on the VBEs. Study the behavior of steel plate shear walls omitting the connection of infill plate and columns is the main purpose of this research. A classic analysis base on PFI method along with quasi static cyclic experimental study has been performed in order to investigate the behavior of such a system. The results of the experimental study are used to verify numerical models. Behaviors of proposed system (overall capacity and initial stiffness) were compared with those of the conventional SPSWs. Results show that both parameters are reduced in comparison to the conventional SPSWs.

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