Large-Scale Testing of Coupled Shear Wall Structures with Damping Devices

Ahn, Tae Sang; Kim, Young Ju; Kim, Sang Dae

doi:10.1260/1369-4332.16.11.1943

Cited by 14 publications

(2 citation statements)

References 10 publications

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“…To solve these problems, the friction damper is often employed. Theoretically, the friction damper has infinite initial stiffness, and a stable post-sliding force, which is superior to other types of dampers in the coupling beam application, as demonstrated by Ahn et al (2013) and Ye et al (2018). Most friction dampers are featured with a line type working in axial direction, such as the Pall friction damper (Pall and Marsh, 1982) and the Sumitomo damper (Aiken et al, 1993).…”

Section: Introductionmentioning

confidence: 98%

Experimental Study on a Hybrid Coupling Beam With a Friction Damper Using Semi-steel Material

et al. 2019

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RC coupling beams have been reported to have had serious damages during the 2008 Wenchuan earthquake. Beams are very difficult to repair once cracks occur. To improve the ductility and reparability of the traditional RC coupling beam, a damage-controllable hybrid coupling beam is proposed in this study. The hybrid coupling beam couples the wall limbs by a friction damper connected through steel beam segments. The strength and stiffness of the friction damper are carefully designed to concentrate more deformation on the damper. The friction mechanism could dissipate more energy than the traditional RC coupling beam. The uncertainties introduced by the design process and the inherent characteristics of traditional RC coupling beams or other types of dampers are significantly reduced. High-strength bolts are used for all connections so that it could be quickly replaced once any damage is observed after an earthquake. In this study, a friction damper using semi-metallic friction plates and stainless-steel shims as the contact pair was tested at different loading rates. The temperature was measured. A thermal-mechanical model was then developed to correlate the dissipated energy with the friction coefficient or friction force, which can be easily incorporated into the structural design process. Finally, the hybrid coupling beam was designed and tested quasi-statically. The force, deformation, and energy dissipation capacity were compared with the traditional RC coupling beam, which also demonstrated damage controllability by using the proposed hybrid coupling beam.

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Section: Introductionmentioning

confidence: 98%

Experimental Study on a Hybrid Coupling Beam With a Friction Damper Using Semi-steel Material

et al. 2019

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“…Analyzing the energy flow in the overall ES system leads to a better understanding of the mechanism of interactions. Previous studies revealed that energy consumption by the secondary structure can change the energy distribution of the primary structure (Ahn et al, 2013; Chen et al, 2016; Tan et al, 2014; Wong and Chee, 2004). Current studies of the energy response of ES systems focus mainly on the energy responses of the structure, while the energy response of each component in the coupled system has not been properly understood and current calculation methods are relatively complicated.…”

Section: Introductionmentioning

confidence: 99%

Seismic energy response analysis of equipment-structure system via real-time dynamic substructuring shaking table testing

Luo

Jiang

2019

Advances in Structural Engineering

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Dynamic equations are presented that have been deduced for a real-time dynamic substructuring shaking table test of an equipment-structure system, based on the branch mode substructure method. The equipment is adopted as the experimental substructure, which is loaded by the shaking table, while the structure is adopted as the numerical substructure. Real-time data communication occurs between the two substructures during the test. A real-time seismic energy calculation method was proposed for the calculation of energy responses, both in the experimental substructure and the numerical substructure. Taking a representative four-story steel frame/equipment model, real-time dynamic substructuring shaking table tests and overall model tests were executed. The proposed real-time dynamic substructuring shaking table testing method was verified by comparing the test results with shaking table test results for the overall model. The energy responses of each component in the equipment-structure system, using different connection types, also were studied. Changes in the connection types can lead to changes in the energy responses of the equipment-structure system, especially with respect to the equipment. The choice of the connection for the equipment-structure coupled system should take into account the operational performance objective of the equipment.

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Experimental investigation on new mechanical systems effectiveness to reduce the coupling beam damages

Sesli

Hüsem²,

Sunca³

et al. 2022

Bull Earthquake Eng

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Large-Scale Testing of Coupled Shear Wall Structures with Damping Devices

Cited by 14 publications

References 10 publications

Experimental Study on a Hybrid Coupling Beam With a Friction Damper Using Semi-steel Material

Experimental Study on a Hybrid Coupling Beam With a Friction Damper Using Semi-steel Material

Seismic energy response analysis of equipment-structure system via real-time dynamic substructuring shaking table testing

Experimental investigation on new mechanical systems effectiveness to reduce the coupling beam damages

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