Mechanical Behavior of Light Trusses Made of Poplar Laminated Veneer Lumber and Connected with Bolts and Tooth Plates
作者机构：College of Civil EngineeringYangzhou UniversityYangzhouChina Wood Science and Technology CenterUniversity of New BrunswickFrederictonCanada
出 版 物：《Journal of Renewable Materials》 (可再生材料杂志（英文）)
年 卷 期：2020年第8卷第9期
页 面：1111-1127页
核心收录：
学科分类：082902[工学-木材科学与技术] 08[工学] 0829[工学-林业工程]
基 金：funded by National Key Research and Development Plan“Green Building and Building Industrialization”Key Special Project in 2017(Grant No.2017YFC0703505) Ministry of Housing and Urban-Rural Development Technology Project in 2015(Grant No.2015-K2-009)
主 题：Poplar LVL truss mechanical properties bearing capacity bolted connection truss plate connections model
摘 要：Poplar Laminated Veneer Lumber(Poplar LVL)is a new type of engineering materials with high strength,good reliability and small *** LVL is manufactured from the fast-growing poplar,which is widely used in packaging,furniture and others,however,is rarely adopted in *** order to explore the feasibility of poplar LVL trusses in construction of roof,four 4.5-m-span Fink-and-Howe trusses were designed and assembled,which were made of poplar LVL with bolted-and tooth-plated *** static loading on the upper chord joints of a truss was imposed by self-balancing test *** mechanical properties of trusses were *** ultimate load,deformation character and failure mode of each truss were measured,observed and ***,four types of analytical models with different joint connection assumptions were used to estimate the ultimate load and *** results showed that the poplar LVL trusses were basically in elastic stage before the design load was reached,showing good working performance under the action of design *** bearing capacity of the trusses of bolted connections was greater than that of the tooth-plated *** for the same joint connection type,the bearing capacity of Fink trusses exceeded that of Howe *** poplar LVL light trusses of both types of connections showed good structural performance,which could be reasonably used for building roof systems.
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