PSI - Issue 37

ScienceDirect Structural Integrity Procedia 00 (2019) 000 – 000 Structural Integrity Procedia 00 (2019) 000 – 000 Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceD rect Available online at www.sciencedirect.com ScienceDirect

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Procedia Structural Integrity 37 (2022) 706–713

© 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of Pedro Miguel Guimaraes Pires Moreira Abstract Timber frame which commonly serves as the basic structural form in heritage Chinese timber buildings contains different types of semirigid joints such as loose mortise-tenon (MT) joints and free-standing column foot (CF) joints. The analytical models of MT and CF joints are introduced in this paper firstly. Next the hybrid finite elements with MT joint and CF joint are formulated for further modeling of the timber frame. Then a portal timber frame with MT and CF joints is taking as an example for illustration of the modeling method of heritage Chinese timber frame. The transverse behavior of the timber frame is further studied with distribution of the restoring moments at MT and CF joints at the three critical points. The reference may be provided based the obtained results for the preventive protection of heritage Chinese timber buildings. © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) ICSI 2021 The 4th International Conference on Structural Integrity Modeling method of heritage Chinese timber frames with loose mortise-tenon joints Pan Yu a , Qingshan Yang a,b,* , Ke Liu a a School of Civil Engineering, Chongqing University, Chongqing, 400044, China b Beijing's Key Laborat ry of Structural Wi d Engi eering a d Urban Wind Environment, Beijing, 100044, China Abstract Timber frame which commonly serves as the basic structural form in heritage Chinese timber buildings contains different types of se irigid joints su as loose mortis -tenon (MT) joints and ree-standing colum foo (CF) joints. The a alytical models of MT and CF joints are introduced in this paper firstly. Nex the hybrid fi ite elements with MT joint and CF joint are formulated for further m deling of he timber frame. Th n a portal timber frame with MT and CF jo nts is tak g s an example for illustr ion f the modeling method of heritage Chinese timber fram . The transverse behavior of the timber frame is further st died with distribution of the rest ring moments at MT and CF joints at the thre critical p ints. T refer nce ay be provided based the obta ned results for the preventive protection of heritage Chinese timb r buildings. © 2022 The Auth s. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review u der responsibility of Pedro Miguel Guimara s Pires Moreira K ywords: Timber frame; Mortise-tenon joint; Column foot joint; Hybrid finite lement 1. Introduction Timber frame is the important structural form existed in heritage Chinese timber buildings (Chen,1993; Wan, 2020). The lateral behavior of the imbe frame is complicated which is very d ffer nt with those of modern structures (concrete or steel frames, etc.). This is because there are some different types of semirigid j ints in the timbe fram , such as m tis -tenon (MT) joints and column foot (CF) joints. Th MT joint of th frame c nsi ts of s parat cupped ICSI 2021 The 4th International Conference on Structural Integrity Modeling method of heritage Chinese timber frames with loose mortise-tenon joints Pan Yu a , Qingshan Yang a,b,* , Ke Liu a a School of Civil Engineering, Chongqing University, Chongqing, 400044, China b Beijing's Key Laboratory of Structural Wind Engineering and Urban Wind Environment, Beijing, 100044, China Peer-review under responsibility of Pedro Miguel Guimaraes Pires Moreira Keywords: Timber frame; Mortise-tenon joint; Column foot joint; Hybrid finite element 1. Introduction Timber frame is the important structural form existed in heritage Chinese timber buildings (Chen,1993; Wan, 2020). The lateral behavior of the timber frame is complicated which is very different with those of modern structures (concrete or steel frames, etc.). This is because there are some different types of semirigid joints in the timber frame, such as mortise-tenon (MT) joints and column foot (CF) joints. The MT joint of the frame consists of separate cupped

* Corresponding author. Tel.: +86-139-1153-0732. E-mail address: qshyang@cqu.edu.cn * Corresponding author. Tel.: +86-139-1153-0732. E-mail address: qs yang@cqu.edu.cn

2452-3216 © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of Pedro Miguel Guimaraes Pires Moreira 2452-3216 © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review u der responsibility of Pedro Miguel Guimara s Pires Moreira

2452-3216 © 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of Pedro Miguel Guimaraes Pires Moreira 10.1016/j.prostr.2022.01.141