Evaluation of ultimate capacity of semi-supported steel shear walls

Jahanpour, Alireza; Moharrami, Hamid; Aghakoochak, A.

doi:10.1016/j.jcsr.2011.01.007

Cited by 34 publications

(12 citation statements)

References 6 publications

(11 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Choi and Park 18 further proved that a large plastic hinge length of stiffener will yield high shear capacity of the stiffened system. Moreover, Jahanpour et al 19 . establish an analytical model of single‐ and multi‐story semi‐supported SPSW with secondary columns, giving ultimate capacity algorithm based on the lower bound theory.…”

Section: Introductionmentioning

confidence: 99%

“…As for shear capacity design, Guo et al 15 . proposed an approximate formula for the ultimate shear capacity for BOSPSW based on simulation results; Jahanpour et al 19 . obtained a comprehensive algorithm to calculate the ultimate shear capacity for stiffened BOSPSW with the pinned and rigid connections.…”

Section: Introductionmentioning

confidence: 99%

“…18 Choi and Park 18 further proved that a large plastic hinge length of stiffener will yield high shear capacity of the stiffened system. Moreover, Jahanpour et al 19 establish an analytical model of single-and multi-story semi-supported SPSW with secondary columns, giving ultimate capacity algorithm based on the lower bound theory. The stability problems of compressive secondary columns have also been considered in the complementary study, which determines the interaction curves of the overturning moment and base shear for the design semi-supported SPSW.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Theoretical models of key parameters for performance‐based seismic design of new partially connected steel plate shear wall with vertical square tube stiffeners

Kang

Cui

et al. 2022

Earthq Engng Struct Dyn

View full text Add to dashboard Cite

The main problems of steel plate shear walls in current studies can be grouped into two categories: the unexpected bulky column or column failure in fully connected steel plate shear walls (FCSPSWs), and the low shear capacity in steel plate shear walls attached to the beam only (BOSPSW). Therefore, a partially connected steel plate shear wall with vertical square tube stiffeners (PCSPSW‐VSTS) is proposed in this work. There are three contribution points. Firstly, flexural stiffness thresholds of beams for BOSPSW and PCSPSW‐VSTS are proposed to ensure the uniform partial tension fields in the infill plates. Secondly, theoretical models of tension field inclination angles in BOSPSW and PCSPSW‐VSTS are proposed. Comparison results using proposed theoretical models, experiments, and simulations indicate that the proposed equations for the inclination angle can accurately predict the direction of principal tension stress for BOSPSW and PCSPSW‐VSTS. Thirdly, the shear capacity theoretical model of PCSPSW‐VSTS is proposed, which agrees well with experimental and numerical results. Besides, parametric studies of PCSPSW‐VSTS are conducted to investigate energy dissipation behavior and the effect of various stiffeners, which show that the square tube stiffener is efficient and economical, and the behavior of PCSPSW‐VSTS is better than that of FCSPSW in terms of shear capacity and energy dissipation. The proposed theoretical models can be adopted to develop the performance‐based seismic design of BOSPSW and PCSPSW‐VSTS. The proposed theoretical models avoid the simulation, the experiment, and the complicated solution of governing equations, which are suitable for designing buildings with SPSW in high‐intensity areas.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Theoretical models of key parameters for performance‐based seismic design of new partially connected steel plate shear wall with vertical square tube stiffeners

Kang

Cui

et al. 2022

Earthq Engng Struct Dyn

View full text Add to dashboard Cite

show abstract

“…To reduce column demands in SPSWs, some researchers have investigated the use of low yield point steel for the infill plate, reduced beam sections at beam-to-column connections, and strategic placement of holes in the infill panels [9,10].Some other researchers reduced the column forces using semi supported steel plate shear walls, which the infill plate is connected to secondary columns that are placed to anchor the plate forces. They also developed an evaluation for ultimate capacity of such a system [11,12]. Other researchers disconnected steel plate from columns to eliminate pull-in forces [13,15].…”

Section: Introductionmentioning

confidence: 99%

Behaviour of Steel Plate Shear Wall in Multi Span Moment Frame with Various Infill Plate Connection to Column

2018

View full text Add to dashboard Cite

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.

show abstract

“…Xue and Lu performed an analytical study on the behavior of SSSWs and concluded that using beam‐only connections drastically reduced the shear forces in the interior columns and helped avoid premature failure of columns. Moharrami et al and Jahanpour et al conducted some tests on SSSWs and showed that the SSSW systems have considerable shear strength. Kurata et al presented a rehabilitation technique that utilizes a thin steel plate with beam‐only‐connected web plates as a supplemental shear wall system for small and low rise steel structures.…”

Section: Introductionmentioning

confidence: 99%

Strength, stiffness, ductility, and dissipated energy reduction of semisupported steel shear walls (SSSW) due to a circular opening

Shekastehband

Azaraxsh

2018

Structural Design Tall Build

View full text Add to dashboard Cite

Semisupported steel shear walls (SSSWs) with web plates that are only connected to the beams were proposed as a means of mitigating column demands. In this research, equations for evaluating the reduction factors of performance characteristics (i.e., shear strength, initial stiffness, ductility, and energy dissipation) for SSSWs with the circular opening at the center are proposed. Nonlinear quasistatic analyses under cyclic loading were conducted on a series of perforated SSSWs with different slenderness ratio and different perforation diameters to assess the effectiveness of the proposed equations. Based on the results, the performance characteristics of SSSWs are affected directly by the square D/L PTF (D and L PTF are the perforation diameter and the length of the partial tension field along the beam, respectively). Furthermore, the proposed equations underestimate the reduction factors for web plates with higher perforation ratios, D/H (H is the height of web plate). With an increase in the perforation ratio, deterioration of shear strength and dissipated energy is so severe compared with that of initial stiffness and ductility factor. The proposed equations for performance characteristics deterioration have been validated by the good correlation between predicted values and experimental data.

show abstract

Evaluation of ultimate capacity of semi-supported steel shear walls

Cited by 34 publications

References 6 publications

Theoretical models of key parameters for performance‐based seismic design of new partially connected steel plate shear wall with vertical square tube stiffeners

Theoretical models of key parameters for performance‐based seismic design of new partially connected steel plate shear wall with vertical square tube stiffeners

Behaviour of Steel Plate Shear Wall in Multi Span Moment Frame with Various Infill Plate Connection to Column

Strength, stiffness, ductility, and dissipated energy reduction of semisupported steel shear walls (SSSW) due to a circular opening

Contact Info

Product

Resources

About