PSI - Issue 37

Pan Yu et al. / Procedia Structural Integrity 37 (2022) 706–713 Pan Yu / Structural Integrity Procedia 00 (2021) 000 – 000

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Figure 10 - The proportion of the restoring moment of two CF and MT joints at three moments (a) Moment 1; (b) Moment 2; (c) Moment 3;

5. Conclusions The modeling method of the heritage Chinese timber frame is introduced in this paper. The timber frame model with mortise-tenon (MT) and column foot (CF) joints can be obtained by replacing the corresponding beam elements with the hybrid finite elements. The results of lateral force-displacement relationship obtained from the proposed beam element model and solid element model from ABAQUS have a basic agreement with each other. The transverse behaviour of the timber frame is studied with distribution of the restoring moments at MT and CF joints at the three critical points. The transverse stiffness of the timber frame is mainly provided by the CF joints before the second critical point, and it is mainly provided by the two MT joints after the second critical point. Acknowledgements The work was supported by Chongqing Science and Technology Commission (cstc2020yszx-jcyj0002). The research project funding of the 111 Project of the Ministry of Education and the Bureau of Foreign Experts of China (Nos. B13002, B18062) and Outstanding Scientist Project of Chongqing Talent Program were also acknowledged. References Chen MD. (1993) Research on the construction of Yingzaofashi. Beijing: Cultural Relics Press. (In Chinese). Law, S. S., Wu, Z. M., & Chan, S. L. (2003). Hybrid Beam-Column Element with End Frictional Joints[J]. Journal of Engineering Mechanics-asce, 129(5), 564-570. Law, S. S., Wu, Z., & Chan, S. L. (2005). Transverse Natural Vibration of a Beam with an Internal Joint Carrying In-Plane Flexibilities. Journal of Engineering Mechanics-asce, 131(1), 80-87. Wan, J., Yang, Q., Wei, J., & Li, T. (2020). Initial motion analysis of heritage Chinese rocking timber frame subjected to horizontal ground motion: Theoretical and numerical investigations. Engineering Structures. Xie, Q., Zhang, L., Miao, Z., Zhou, W., & Li, S. (2020). Lateral Behavior of Heritage Chinese Timber-Frames Strengthened with Shape-Memory Alloy: Experiments and Analytical Model. Journal of Structural Engineering-asce, 146(6). Yang, Q., Yu, P., & Law, S. S. (2020). Load resisting mechanism of the mortise-tenon connection with gaps under in-plane forces and moments. Engineering Structures, 219,110755. Yu, P., Yang, Q., & Law, S. S. (2021). Lateral behavior of heritage timber frames with loose nonlinear mortise-tenon connections. Structures, 33, 581-592.