结构工程师2017，Vol.33Issue(6)：80-89,10.
桉木制单板条斜向组合胶合木材料及连接性能试验研究
Tests on Mechanical Performance of Material and Single-bolted Connection of a Eucalyptus-based Orient Oblique Strand Lumber
熊海贝 1葛鹏 1杨林清 2付豪1
作者信息
- 1. 同济大学结构工程与防灾研究所,上海200092
- 2. 深圳嘉汉林业科技有限公司,深圳518020
- 折叠
摘要
Abstract
In order to investigate the mechanical performance of a eucalyptus-based strand lumber (ESWood),seven groups of material mechanical tests with small clear specimens were tested.And the tensile strength parallel to grain,compressive strength parallel to grain,tensile strength perpendicular to grain,compressive strength perpendicular to grain,local compressive strength perpendicular to grain and dowelbearing strength were obtained.Then,twelve groups of seventy-two single-bolted connections were tested and analyzed.And the effects of force direction to grain,the ratio of length to diameter of bolt and wood species on the failure modes of single-bolt connection were investigated compared with SPF glulam.GB/T 50708-2012 and Eurocode 5 were used to calculate the standard value and design value of the connection.The results indicated that ESWood single-bolt connection specimens showed single plastic hinge and two plastic hinges failure mode and the average failure loads and equivalent yield loads of tensile ESWood specimens with single bolt connection parallel to grain is 5 ％ to 50％ larger than those of SPF glulam,while the equivalent yield loads are similar.The average failure loads and equivalent yield loads of tensile ESWood specimens with single-bolt connection perpendicular to grain are 4％ ～ 34％ larger than those of SPF glulam.And GB/T 50708-2012 and Eurocode 5 can be used to design the bolt connection of ESWood.However,the calculation of the capacity of one plastic hinge failure is larger,and that of two plastic hinges failure is smaller than test results.关键词
单板条斜向组合胶合木/材性试验/单螺栓连接/破坏模式/承载力计算Key words
orient oblique strand lumber/small clear specimens test/single-bolted connection/failure mood/capacity calculation引用本文复制引用
熊海贝,葛鹏,杨林清,付豪..桉木制单板条斜向组合胶合木材料及连接性能试验研究[J].结构工程师,2017,33(6):80-89,10.
