Seismic performances assessment of heritage timber frame based on energy dissipation

Yu, Pan; Yang, Qingshan; Law, S.S.; Liu, Ke

doi:10.1016/j.jobe.2022.104762

Cited by 6 publications

(3 citation statements)

References 20 publications

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“…The joint gap in the half-tenon wood frame weakens the anti-lateral displacement ability of the frame obviously, and the anti-lateral displacement stiffness of the half-tenon wood frame increases with the length of the tenon (Yu et al 2021;Yu 2022). During the oscillating process of the wooden frame, the kinetic energy and gravitational potential energy are exchanged back and forth, and the input energy is finally transformed into unrecoverable damping and friction energy consumption (Yu et al 2022b).…”

Section: Introductionmentioning

confidence: 99%

Seismic performance of light wood shear wall infilled timber frame structures with openings

Yang,

Chen

2024

BioRes

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To study the seismic performance of wood frame structures filled with light wood shear walls, three full-size single-layer single span wooden frame structures with infill walls were designed and manufactured. The beams and columns were connected by mortise-tenon joints, and quasi-static tests were conducted on the specimens under reversed cyclic load. The failure modes and load-displacement hysteresis performance of structures with door opening infill wall, window opening infill wall, and solid infill wall were investigated. The seismic performance was analyzed using indicators such as strength, ductility, and equivalent viscous damping ratio. The failure modes of light wood frame filling walls were the tearing of sheathing panel and the failure of nail connections. The filled wall with the opening initially exhibited inclined cracks at the corner of the opening, and then they extended to the periphery. Compared with the solid filled wall, the positive and negative bearing capacity of the structure with door opening decreased, and that of the structure with window opening decreased also. Because the specimens with opening in the filled wall were more conducive to the deformation of the structure when the bearing capacity was not significantly reduced, the ductility of the specimen with door opening was the highest.

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Section: Introductionmentioning

confidence: 99%

Seismic performance of light wood shear wall infilled timber frame structures with openings

Yang,

Chen

2024

BioRes

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“…Forbidden City at Beijing and Foguang temple in Shanxi) 1,2 and the multidrum columns in the antiquity of Greece and Rome. 3 This form of base isolation was developed decades ago in the aftermath of destructive earthquakes.…”

Section: Introductionmentioning

confidence: 99%

“…Allowing the structure to rotate (rock) about its base is another form of base isolation which has contributed to the survival of heritage constructions. Notable examples are heritage timber constructions in China (e.g., the palace in Forbidden City at Beijing and Foguang temple in Shanxi) 1,2 and the multidrum columns in the antiquity of Greece and Rome 3 . This form of base isolation was developed decades ago in the aftermath of destructive earthquakes.…”

Section: Introductionmentioning

confidence: 99%

Seismic internal force in rocking shear frame with superelastic tendon restraint

Tsang

Lam

2023

Earthq Engng Struct Dyn

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A structure with rocking mechanism is able to prolong the period of vibration and reduce seismic internal force. Recent research demonstrated the effectiveness of a tendon made of superelastic material wire connected in series with steel wire in controlling the amount of rotation and providing a source of hysteretic energy dissipation, thereby lowering the risk of overturning to a rigid structure undergoing whole‐body rotation. This article proposed to extend the use of superelastic tendon restraint on a (flexible) shear frame to strike a balance between the need to reduce the seismic force demand and the need to exercise control of the overturning risk. Initially, an analytical model for the rocking response of shear frame with the superelastic tendon restraint was developed. In addition, a physical model of the shear frame with tendon restraint was fabricated and tested under base excitations. Analysis results showed to match with experiment on both strain gauge and rotation sensor readings in the dynamic testing. Simulations and tests were also applied to an unrestrained shear frame for comparison. It was also found that the total deflection of the shear frame during the rocking phase could be described as horizontal vibration about a non‐constant balancing deflection. The analytical models developed for flexible rocking systems were extended in the current study to deal with superelastic tendon restrained rocking shear frames. The validity and versatility were confirmed by shaker table test results.

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Analytical Model of Bracket Set Frame in Traditional Chinese Timber Structures

Yang,

Liu,

2023

RILEM Bookseries

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Seismic performances assessment of heritage timber frame based on energy dissipation

Cited by 6 publications

References 20 publications

Seismic performance of light wood shear wall infilled timber frame structures with openings

Seismic performance of light wood shear wall infilled timber frame structures with openings

Seismic internal force in rocking shear frame with superelastic tendon restraint

Analytical Model of Bracket Set Frame in Traditional Chinese Timber Structures

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