Seismic displacements and behaviour factors assessment of an innovative steel and concrete hybrid coupled shear wall system

Salameh, Molham; Shayanfar, Mohsen Ali; Barkhordari, Mohammad Ali

doi:10.1016/j.istruc.2021.07.058

Cited by 11 publications

(5 citation statements)

References 43 publications

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“…The benefits of such SPSW-SSC coupled structural system are obvious: due to the additional force couple formed between the SSCs, the overturning moment demand at the SPSW bottom section is significantly reduced; the SCBs can yield and consume most of the earthquake-induced energy through considerable plastic shear rotations prior to the formation of plastic hinge at the SPSW bottom region; and the entire height of the SPSW can be uniformly mobilized to provide post-yield mechanical and deformation capacities. Although previous research has numerically proved similar coupled systems consisting of reinforced concrete walls and SSCs connected with steel links can be proportioned to exhibit the preferred yield sequence and failure pattern [17][18][19], research on SPSW-SSC coupled system has rarely been reported. Behavior of the SPSW is more complicated than RC walls in that the interaction between the boundary frame members (HBE and VBE) and the infill web plates has a significant impact on the overall behavior of the SPSW [14].…”

Section: Introductionmentioning

confidence: 99%

Energy-Balance-Based Plastic Design and Seismic Fragility Analysis of Steel Plate Shear Wall Coupled with Steel Side Columns

Wu,

Liu,

Zhao

et al. 2024

Advances in Civil Engineering

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The steel plate shear wall (SPSW) coupled with steel side columns (SSCs) through steel coupling beams, or the SPSW–SSC coupled structural system, is a novel lateral force resisting system that introduces coupling mechanism to the isolated SPSW pier. To simplify the complex iteration of the conventional seismic design procedure and obtain the favorable plasticity development and distribution pattern determined by the coupling mechanism, the energy-balance concept and the plastic design method are combined to develop the energy-balance-based plastic design (EBPD) method for the SPSW–SSC coupled system with the consideration of the degradation of hysteretic behavior. Twelve SPSW–SSC coupled system prototype cases with different story numbers and coupling ratios (CRs) were designed and numerically modeled to simulate the main seismic behavior. The pushover analyses and the incremental dynamic analyses were further carried out to examine the lateral load capacity and deformation relationships and the seismic fragility curves with respect to the performance levels quantified by the maximum interstory drift ratios. The analysis results prove that the coupling mechanism can be realized in the SPSW–SSC coupled system with preferred yielding sequence and plasticity distribution mode. The influences of story number and CR on the lateral load capacity curves are revealed. The seismic fragility analysis results indicate the exceeding probability of the limit states corresponding to different performance levels with the consideration of the influences of story number and CR, which further proves the effectiveness of the proposed EBPD methods in terms of the realization of the coupling mechanism and the earthquake collapse safety of the SPSW–SSC coupled structural system.

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Section: Introductionmentioning

confidence: 99%

Energy-Balance-Based Plastic Design and Seismic Fragility Analysis of Steel Plate Shear Wall Coupled with Steel Side Columns

Wu,

Liu,

Zhao

et al. 2024

Advances in Civil Engineering

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“…The influence of the design parameters in SP-HCWs were objective of previous investigations [2]- [7] where it was observed that inelastic deformations could not be restricted to the steel links and spread also at the base of the RC wall, a condition that implies a damage not easy to be repaired. Hence, solutions able to avoid damage in the RC wall could be very important to foster the possible use SP-HCWs.…”

Section: Introductionmentioning

confidence: 99%

Design and analysis of steel‐concrete hybrid coupled walls with hinged base and corner components

Scozzese,

Ceccolini,

Zona

et al. 2023

ce papers

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The seismic performance of hybrid coupled walls (HCWs) made of a single reinforced concrete (RC) wall connected to two steel side columns by means of steel links is studied in this article. Steel links are designed as dissipative elements while the RC wall and the steel side columns should remain elastic. Given that previous studies highlighted the difficulties in avoiding damage at the base of the RC wall due to the concentration of bending moment, the scheme with fixed base is modified in this study with the adoption of a hinged connection and vertical steel elements called corner components. A ductile design methodology is proposed and applied to the design of case studies with different building heights (three and six stories) and different base conditions (fixed base and hinged base with corner components). Moreover, the influence of uniform and variable distributions of links along the building height is assessed. Results of pushover analyses are presented to validate the design methodology and provide insight into the structural response of the proposed solution, showing the benefits of a hinged base with corner components.

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“…However, the behavior of real‐life structures may be much more complicated. To the authors' best knowledge, the research on evaluating the seismic‐induced damage of the shear wall based on the SHM has seldom been addressed 26,27 . Therefore, it would be desired and mechanically meaningful to investigate the feasibility of the current damage index for the coupled shear wall structures with the flexural‐shear coupling behavior.…”

Section: Introductionmentioning

confidence: 99%

Damage tracking and hysteresis‐based evaluation of seismic‐excited RC shear wall using monitoring data

Shan,

Wang,

Loong

et al. 2023

Structural Design Tall Build

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SummaryReinforced concrete (RC) shear walls play an important role as the seismic resisting system in tall buildings. Yet, assessing the seismic damage of real‐world shear walls remains a challenging task. In this study, a damage index that relies on the vibration data measured by the sensors embedded in the structure is proposed to evaluate the damage condition of shear walls. The damage index is formed by the linear combination of two normalized terms, which, respectively, characterize the peak and the cumulative damages of the shear walls with little knowledge of real‐life structural hysteresis. The damage tracking and evaluation based on the substructure level and the story level are discussed. The damage indices evaluated using the hysteretic loops made by the shear and bending information of the shear wall are further compared. The feasibility of the proposed damage index is examined using a numerically simulated 12‐story coupled shear wall structure. It is then applied to analyze the experiments regarding the damage condition of RC shear walls under earthquakes. Results show that the proposed damage index can track the damage states of RC shear walls under seismic excitations. Analysis suggests that the proposed damage index could trace and distinguish the progression of shear and flexural damages, which potentially supports the post‐earthquake structural safety management.

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Seismic displacements and behaviour factors assessment of an innovative steel and concrete hybrid coupled shear wall system

Cited by 11 publications

References 43 publications

Energy-Balance-Based Plastic Design and Seismic Fragility Analysis of Steel Plate Shear Wall Coupled with Steel Side Columns

Energy-Balance-Based Plastic Design and Seismic Fragility Analysis of Steel Plate Shear Wall Coupled with Steel Side Columns

Design and analysis of steel‐concrete hybrid coupled walls with hinged base and corner components

Damage tracking and hysteresis‐based evaluation of seismic‐excited RC shear wall using monitoring data

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