摘要
现代木结构主要由构件与连接件组成。为研究木构件顺纹受压性能,对落叶松胶合木构件进行顺纹受压性能试验,归纳其破坏类型,计算顺纹抗压强度并推导应力—应变经验公式。此外,针对钉连接件在握钉力作用下出现的脆性破坏,采用玻璃纤维增强钉连接件,提高局部节点强度及安全性。试验结果表明:落叶松顺纹受压破坏为塑性破坏,极限强度为43.03MPa;三层玻璃纤维增强钉连接件极限应力为60.7MPa,其增强钉连接既经济又安全。
Modern timber structure consists of members and connections.In order to study the mechanical property of timber members,the larch glued-laminated（glulam） was adopted.The experiment of rift grain compression is conducted to learn failure forms and compression stress of the larch glulam.Meanwhile the property of glass fiber reinforce plastic（GFRP） reinforced nailed connection was also studied.It is turned out that the larch glulam under the rift grain compression behave as the characteristics of plastic failure,and the rift grain compression stress is 43.03 MPa.The ultimate stress of three layer of GFRP reinforced nailed connection is 60.7 MPa,and it can be good to apply in civil engineering.
出处
《结构工程师》
北大核心
2015年第1期142-146,共5页
Structural Engineers
基金
国家林业公益性行业科研专项资助(201304504)
湖南省研究生科研创新项目(CX2012B334)
中南林业科技大学研究生创新基金(2010sx07)
关键词
胶合木构件
顺纹受压
钉连接
增强性能
glulam members
rift grain compression
nailed connections
reinforced property
作者简介
联系作者，Email：yecry@126．com
