权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Development of cross embedded joint using lagscrewbolt

使用拉力螺栓的交叉嵌入接头的开发

基本信息

批准号：
23780186
负责人：
NAKATANI Makoto
金额：
$ 2.83万
依托单位：
Miyazaki Prefectural Wood Utilization Research Center
依托单位国家：
日本
项目类别：
Grant-in-Aid for Young Scientists (B)
财政年份：
2011
资助国家：
日本
起止时间：
2011 至 2013
项目状态：
已结题

项目摘要

Inserted type fasteners, such as a lagscrewbolt and a steel rod glued into timber, are proposed as one of the fasteners for middle and large scale timber buildings and timber portal frames. The moment resisting joint with lagscrewbolts etc. shows good mechanical performance and aesthetic. However, the beam and column joints rarely showed a brittle shear failure in the panel zone of the column in previous studies. Therefore, in order to prevent the failure and improve the joint properties, a cross embedded joint with lagscrewbolts was developed. And the joint reinforced with long screws was also developed with considering simple timber processing.The cross embedded joint with lagscrewbolts showed a good ductile performance and a good reinforcing effect against the shear failure in a column and the brittle pull-out failure. And the joint with long screws also shows a good reinforcing performance.

提出了一种中、大型木结构房屋和门式木结构框架的连接件，即插装式连接件，如拉丝螺栓和与木材胶合的钢棒。采用方头螺栓等抗弯节点具有良好的力学性能和美观性。然而，在以往的研究中，梁柱节点很少表现出脆性剪切破坏在面板区的柱。因此，为了防止节点破坏，提高节点性能，提出了一种斜拉螺栓十字埋置节点。考虑到木材加工简单，本文还提出了长螺钉加固节点，斜拉螺栓十字埋置节点具有良好的延性性能，对柱内剪切破坏和脆性拔出破坏具有良好的加固效果。长螺钉连接也表现出良好的加固性能。