Seungmin Yang, Hyunjae Lee, Gyuwoong Choi, Seoggoo Kang
{"title":"用木材和胶合板制成的胶合板交叉层合木材的机械性能","authors":"Seungmin Yang, Hyunjae Lee, Gyuwoong Choi, Seoggoo Kang","doi":"10.1007/s00107-023-02010-w","DOIUrl":null,"url":null,"abstract":"Abstract The mechanical properties of four ply-lam cross-laminated timbers (CLTs) containing a plywood layer were compared with those of glued laminated timber (GLT) and CLT. The bending, out-of-plane shear, and compression strengths were highest in the GLT, followed by the ply-lam CLTs and CLT. The modulus of elasticity (MOE) values for the three studied ply-lam CLT samples were 1–2.5 GPa higher than GLT; however, the modulus of rupture (MOR) of all ply-lam CLTs was 7.3–18.8 MPa lower than GLT. The length of the plywood product is 2,440 mm, and longitudinal bonding is required to manufacture ply-lam CLTs of length > 3 m. The prediction of bending capabilities by shear analogy was compared with the bending properties when joints were included. The performances of all the pilot-scale ply-lam CLT samples exceeded the predicted bending performance standards for MOE (10 GPa) and MOR (30 MPa) All samples exceeded 10 GPa and 30 MPa, based on projected and experimental data.","PeriodicalId":550,"journal":{"name":"European Journal of Wood and Wood Products","volume":null,"pages":null},"PeriodicalIF":2.4000,"publicationDate":"2023-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Mechanical properties of ply-lam cross-laminated timbers fabricated with lumber and plywood\",\"authors\":\"Seungmin Yang, Hyunjae Lee, Gyuwoong Choi, Seoggoo Kang\",\"doi\":\"10.1007/s00107-023-02010-w\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Abstract The mechanical properties of four ply-lam cross-laminated timbers (CLTs) containing a plywood layer were compared with those of glued laminated timber (GLT) and CLT. The bending, out-of-plane shear, and compression strengths were highest in the GLT, followed by the ply-lam CLTs and CLT. The modulus of elasticity (MOE) values for the three studied ply-lam CLT samples were 1–2.5 GPa higher than GLT; however, the modulus of rupture (MOR) of all ply-lam CLTs was 7.3–18.8 MPa lower than GLT. The length of the plywood product is 2,440 mm, and longitudinal bonding is required to manufacture ply-lam CLTs of length > 3 m. The prediction of bending capabilities by shear analogy was compared with the bending properties when joints were included. The performances of all the pilot-scale ply-lam CLT samples exceeded the predicted bending performance standards for MOE (10 GPa) and MOR (30 MPa) All samples exceeded 10 GPa and 30 MPa, based on projected and experimental data.\",\"PeriodicalId\":550,\"journal\":{\"name\":\"European Journal of Wood and Wood Products\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.4000,\"publicationDate\":\"2023-11-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"European Journal of Wood and Wood Products\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1007/s00107-023-02010-w\",\"RegionNum\":3,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"FORESTRY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"European Journal of Wood and Wood Products","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1007/s00107-023-02010-w","RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"FORESTRY","Score":null,"Total":0}
Mechanical properties of ply-lam cross-laminated timbers fabricated with lumber and plywood
Abstract The mechanical properties of four ply-lam cross-laminated timbers (CLTs) containing a plywood layer were compared with those of glued laminated timber (GLT) and CLT. The bending, out-of-plane shear, and compression strengths were highest in the GLT, followed by the ply-lam CLTs and CLT. The modulus of elasticity (MOE) values for the three studied ply-lam CLT samples were 1–2.5 GPa higher than GLT; however, the modulus of rupture (MOR) of all ply-lam CLTs was 7.3–18.8 MPa lower than GLT. The length of the plywood product is 2,440 mm, and longitudinal bonding is required to manufacture ply-lam CLTs of length > 3 m. The prediction of bending capabilities by shear analogy was compared with the bending properties when joints were included. The performances of all the pilot-scale ply-lam CLT samples exceeded the predicted bending performance standards for MOE (10 GPa) and MOR (30 MPa) All samples exceeded 10 GPa and 30 MPa, based on projected and experimental data.
期刊介绍:
European Journal of Wood and Wood Products reports on original research and new developments in the field of wood and wood products and their biological, chemical, physical as well as mechanical and technological properties, processes and uses. Subjects range from roundwood to wood based products, composite materials and structural applications, with related jointing techniques. Moreover, it deals with wood as a chemical raw material, source of energy as well as with inter-disciplinary aspects of environmental assessment and international markets.
European Journal of Wood and Wood Products aims at promoting international scientific communication and transfer of new technologies from research into practice.