Study on Seismic Performance of Coupled Shear Walls with Vertical Dampers

Pan, Chao; Weng, Da Gen

doi:10.4028/www.scientific.net/amr.163-167.4185

Cited by 2 publications

(1 citation statement)

References 4 publications

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“…Kurama and Shen (2004) has shown that application of posttensioning on steel coupling beams is an effective method to couple reinforce concrete walls in seismic regions. Recent researches on CSW systems with a damping device as a structural fuse have been carried out to improve the deformation capacity of coupling beams (Fortney et al 2007;Pan and Weng 2011). The objective of the research project presented in this paper is to enhance the features of coupling beams by installing energy dissipation devices without the inelastic deformation demand on the wall pier and coupling beam connections.…”

Section: New Coupled Shear Wall Systemmentioning

confidence: 99%

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

Ahn¹,

Kim²,

Kim

2013

Advances in Structural Engineering

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When coupled shear wall (CSW) systems are built in a high seismic region, excessive shear forces are induced in the coupling beams. As a result of these shear forces, brittle failure of coupling beams and wall-coupling beam joints may occur or shear walls may yield first. The ductility demands on coupling beams can also be of critical concern. To solve these problems, new damping systems are proposed to improve the seismic performance of high-rise coupling shear wall structures. The proposed systems, which are CSW systems with a metallic damper or a friction damper, offer important advantages over the conventional reinforced concrete CSW systems: increasing energy dissipation capacity and reducing damage to the structures. This paper presents the results of large-cale cyclic tests of damped CSW systems. Test results show that the proposed systems exhibit a stable hysteretic response. In addition, the energy dissipation in these systems is concentrated in the energy dissipation devices, while the inelastic behavior of the beams and walls is prevented through appropriate capacity design.

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Section: New Coupled Shear Wall Systemmentioning

confidence: 99%

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

Ahn¹,

Kim²,

Kim

2013

Advances in Structural Engineering

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An Efficient Model for the Coupling Beam Using Damping Devices in Coupled Shear Wall Structures under Earthquake Loads

Pham

Nguyen

Nguyen³

et al. 2023

Buildings

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This paper proposes a new element for modeling the energy-dissipation coupling beam to analyze the coupled shear wall structure under seismic loading. The new beam element includes 2 rigid beams and an energy dissipation device in the middle. The element stiffness matrix is derived based on principles of nonlinear mechanics. A procedure of the incremental-iterative solution is built using the Newmark method and adopted for solving the nonlinear equation of motion. A computer program using Matlab is developed to analyze the behavior of frame analogy which is modeled from the couped shear wall structure. Several numerical examples are presented to verify the developed program with the commercial finite element package SAP2000. The numerical results proved that the proposed program is efficient and reliable. The proposed element and program are then applied to analyze a 30-story coupled shear wall structure with energy dissipation devices. As a result, the locations of the device that provide effective seismic resistance for a 30-story coupled shear wall structure are in the region from the 5th to the 15th floor or assigned on all floors.

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Study on Seismic Performance of Coupled Shear Walls with Vertical Dampers

Cited by 2 publications

References 4 publications

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

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

An Efficient Model for the Coupling Beam Using Damping Devices in Coupled Shear Wall Structures under Earthquake Loads

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