{"title":"人工模拟损坏的箍头榫接缝抗震性能实验研究","authors":"Chengwei Peng, Wenlong Lv","doi":"10.1007/s40996-024-01494-7","DOIUrl":null,"url":null,"abstract":"<p>Hoop head mortise–tenon joint is a traditional wood connection technique used in ancient Chinese timber structures, characterized by the interlocking of mortise and tenon and the anti-extraction effect of the hoop head. In order to study the mechanical properties of damaged hoop head mortise–tenon joints, this paper explores variations in parameters, including the size, depth, location and shape of damaged areas, column axial force, and timber types. Seventeen scaled specimens, including both intact and artificially damaged joints, were analyzed through low-cyclic repeated loading tests. The results demonstrate that in the case of specimens crafted from Merbau and Tectona grandis, the primary damage modes entail longitudinal tensile cracking of the beam tenon on the inner side of the column and vertical splitting of the beam tenon on the outside of the column. In contrast, specimens made of Chinese fir (<i>Cunninghamia lanceolata</i>) were free of noticeable cracks but exhibited manifest compressive deformation at the edges of the beam-column junctions. An increase in the axial force of the column leads to higher peak bending moments and enhanced energy dissipation capacity while reducing ductility. Irrespective of timber type, heightened total damage degree substantially diminishes the peak bending moment, ductility, and energy dissipation capacity of the joints. The location and shape of the damaged area exert a specific influence on the peak bending moment, ductility, and energy dissipation capacity of the joints. Nonetheless, the underlying patterns are not readily discernible and exhibit a degree of randomness.</p>","PeriodicalId":14550,"journal":{"name":"Iranian Journal of Science and Technology, Transactions of Civil Engineering","volume":"83 1","pages":""},"PeriodicalIF":1.7000,"publicationDate":"2024-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Experimental Study on Seismic Performance of Artificially Simulated Damaged Hoop Head Mortise–Tenon Joints\",\"authors\":\"Chengwei Peng, Wenlong Lv\",\"doi\":\"10.1007/s40996-024-01494-7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Hoop head mortise–tenon joint is a traditional wood connection technique used in ancient Chinese timber structures, characterized by the interlocking of mortise and tenon and the anti-extraction effect of the hoop head. In order to study the mechanical properties of damaged hoop head mortise–tenon joints, this paper explores variations in parameters, including the size, depth, location and shape of damaged areas, column axial force, and timber types. Seventeen scaled specimens, including both intact and artificially damaged joints, were analyzed through low-cyclic repeated loading tests. The results demonstrate that in the case of specimens crafted from Merbau and Tectona grandis, the primary damage modes entail longitudinal tensile cracking of the beam tenon on the inner side of the column and vertical splitting of the beam tenon on the outside of the column. In contrast, specimens made of Chinese fir (<i>Cunninghamia lanceolata</i>) were free of noticeable cracks but exhibited manifest compressive deformation at the edges of the beam-column junctions. An increase in the axial force of the column leads to higher peak bending moments and enhanced energy dissipation capacity while reducing ductility. Irrespective of timber type, heightened total damage degree substantially diminishes the peak bending moment, ductility, and energy dissipation capacity of the joints. The location and shape of the damaged area exert a specific influence on the peak bending moment, ductility, and energy dissipation capacity of the joints. Nonetheless, the underlying patterns are not readily discernible and exhibit a degree of randomness.</p>\",\"PeriodicalId\":14550,\"journal\":{\"name\":\"Iranian Journal of Science and Technology, Transactions of Civil Engineering\",\"volume\":\"83 1\",\"pages\":\"\"},\"PeriodicalIF\":1.7000,\"publicationDate\":\"2024-06-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Iranian Journal of Science and Technology, Transactions of Civil Engineering\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1007/s40996-024-01494-7\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENGINEERING, CIVIL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Iranian Journal of Science and Technology, Transactions of Civil Engineering","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1007/s40996-024-01494-7","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, CIVIL","Score":null,"Total":0}
Experimental Study on Seismic Performance of Artificially Simulated Damaged Hoop Head Mortise–Tenon Joints
Hoop head mortise–tenon joint is a traditional wood connection technique used in ancient Chinese timber structures, characterized by the interlocking of mortise and tenon and the anti-extraction effect of the hoop head. In order to study the mechanical properties of damaged hoop head mortise–tenon joints, this paper explores variations in parameters, including the size, depth, location and shape of damaged areas, column axial force, and timber types. Seventeen scaled specimens, including both intact and artificially damaged joints, were analyzed through low-cyclic repeated loading tests. The results demonstrate that in the case of specimens crafted from Merbau and Tectona grandis, the primary damage modes entail longitudinal tensile cracking of the beam tenon on the inner side of the column and vertical splitting of the beam tenon on the outside of the column. In contrast, specimens made of Chinese fir (Cunninghamia lanceolata) were free of noticeable cracks but exhibited manifest compressive deformation at the edges of the beam-column junctions. An increase in the axial force of the column leads to higher peak bending moments and enhanced energy dissipation capacity while reducing ductility. Irrespective of timber type, heightened total damage degree substantially diminishes the peak bending moment, ductility, and energy dissipation capacity of the joints. The location and shape of the damaged area exert a specific influence on the peak bending moment, ductility, and energy dissipation capacity of the joints. Nonetheless, the underlying patterns are not readily discernible and exhibit a degree of randomness.
期刊介绍:
The aim of the Iranian Journal of Science and Technology is to foster the growth of scientific research among Iranian engineers and scientists and to provide a medium by means of which the fruits of these researches may be brought to the attention of the world’s civil Engineering communities. This transaction focuses on all aspects of Civil Engineering
and will accept the original research contributions (previously unpublished) from all areas of established engineering disciplines. The papers may be theoretical, experimental or both. The journal publishes original papers within the broad field of civil engineering which include, but are not limited to, the following:
-Structural engineering-
Earthquake engineering-
Concrete engineering-
Construction management-
Steel structures-
Engineering mechanics-
Water resources engineering-
Hydraulic engineering-
Hydraulic structures-
Environmental engineering-
Soil mechanics-
Foundation engineering-
Geotechnical engineering-
Transportation engineering-
Surveying and geomatics.