Analysis of the Influence of Mortise-Tenon Joint Damage on Seismic Performance of Ancient Timber Structure

Xue Liang Wang; Liang Jin

doi:10.4028/www.scientific.net/AMM.580-583.1595

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 580-583Analysis of the Influence of Mortise-Tenon Joint...

Analysis of the Influence of Mortise-Tenon Joint Damage on Seismic Performance of Ancient Timber Structure

Abstract:

This research investigated the influence of mortise-tenon joint before and after damage on seismic performance of ancient lifted-beam timber structure. Dynamic responses of an ancient timber structure under various earthquake intensities were analyzed by ANSYS to extract the M-θ hysteresis loops of mortise-tenon joints before and after damage. The area of the largest hysteresis loop was taken as quantitative indicator to measure energy dissipation of mortise-tenon joints. The results shows that if some mortise-tenon joints were damaged, they dissipated much less earthquake energy decreasing by 31.8%-38.5%, and top displacement of structures increased by 1.79%-5.96% correspondingly. Moreover, the displacement under 8-degree-fortification, 7-degree-rare earthquake intensity increased most obviously. Therefore, energy dissipation of mortise-tenon joint is a main indicator to the assessment of seismic performance of a damaged ancient timber structure.

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Periodical:

Applied Mechanics and Materials (Volumes 580-583)

Pages:

1595-1599

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.580-583.1595

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Online since:

July 2014

Authors:

Xue Liang Wang*, Liang Jin

Keywords:

Ancient Timber Structure, Damage of Mortise-Tenon Joint, Energy Dissipation, Seismic Performance

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* - Corresponding Author

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