LVL工字梁的设计制造及其力学性能检测与应用  

Design and Manufacture of LVL I-beam and its Mechanical Performance Test and Application

作　　者：梁星宇 宋利明 何宇航 谢文博 王军[2] 杨小军 王正 LIANG Xing-yu;SONG Li-ming;HE Yu-hang;XIE Wen-bo;WANG Jun;YANG Xiao-jun;WANG Zheng(Collegeof Materials Science and Engineering,Nanjing Forestry University,Nanjing Jiangsu 210037,China;College of Information Science and Technology,Nanjing Forestry University,Nanjing Jiangsu 210037,China;Jiangsu Jindi Wood Industry Co.,Ltd,Siyang Jiangsu 223700,China)

机构地区：[1]南京林业大学材料科学与工程学院,江苏南京210037 [2]南京林业大学信息科学技术学院,江苏南京210037 [3]江苏金迪木业股份有限公司,江苏泗阳223700

出　　处：《林业机械与木工设备》2022年第9期20-24,共5页Forestry Machinery & Woodworking Equipment

基　　金：2020年江苏省科技厅政策引导类计划“意杨LVS结构胶合板关键工艺技术与设备攻关及产业化”项目(SZ-LYG2020016)。

摘　　要：为提高国产单板层积材(LVL)产品的技术含量和附加值水平,通过将经动态弹性模量质量分等后的同批次A、B等级的意杨LVL作为翼缘设计并制造成的同规格的工字梁,并对其开展力学性能研究,其试件A和B的平均弹性模量分别为13.16 GPa和11.09 GPa;并对其工字梁试件开展了抗压承载力和抗剪承载力的性能测定。其结论表明,A和B等级LVL翼缘制造的工字梁的平均抗压承载力和抗剪承载力均符合设计要求,其中A等级LVL翼缘制造的工字梁平均抗压承载力和抗剪承载力均优于B等级LVL翼缘制造的工字梁。以期为提升木结构建筑工程中国产LVL产品的实际应用提供技术支撑。In order to improve the technical content and added value level of domestic laminated veneer lumber(LVL)products, the same batch of A and B grade Italian poplar LVL after dynamic elastic modulus quality grading was used as the flange design and manufactured the I-beam of the same specification, and the mechanical properties were studied.The average elastic modulus of the specimens A and B were 13.16 Gpa and 11.09 Gpa respectively.The performance measurement of compressive bearing capacity and shear bearing capacity of the I-beam specimens has been carried out.The conclusion shows that the average compressive bearing capacity and shear capacity of I-beams made with LVL flanges of grade A and B meet the design requirements. Among them,the average compressive bearing capacity and shear capacity of I-beams made with A-grade LVL flanges are better than those with B-grade LVL flanges. The above is expected to provide technical support for improving the practical application of Chinese-made LVL products in wood structure construction projects.

关 键 词：LVL工字梁 设计制造 抗压承载力 抗剪承载力 测试 

分 类 号：TS67[轻工技术与工程]