摘要
为改善K6型胶合木网壳中连接节点的破坏模式,提出一种夹板内表面塞焊钢齿的铝合金螺栓夹板节点。通过ABAQUS分别建立了带齿和不带齿两种节点模型,研究其力学性能及破坏机理,并进行了钢齿数量,钢齿直径,钢齿边距的参数分析。结果表明引入钢齿可以有效提升节点的初始刚度和承载能力。相比普通夹板节点,带齿夹板节点的初始刚度提高了38.68%,承载能力提高了29.68%。普通夹板节点的破坏由木梁横纹劈裂承载能力控制,而带齿夹板节点的破坏由夹板的屈服强度控制,研究结果可为工程应用提供参考。
An aluminum alloy splint joint with nails bolt is proposed to improve the performance of joints in the K6 glulam shell.The models of bolted splint joint and common splint joint with nails are respectively established by ABAQUS,and the mechanical properties and failure mechanism are studied.The results show that the initial stiff-ness and bearing capacity of the proposed joint are increased by 38.68%and 29.68%,respectively.The failure of the common splint joint is controlled by the transverse splitting bearing capacity of the beam,while the failure of the proposed splint joint is controlled by the yield strength of the splint.The research results may provide the reference for similar engineering applications.
作者
王鹏
崔玉敏
衣俊
WANG Peng;CUI Yumin;YI Jun(Qingdao University of Technology,Shandong Qingdao 266033,China;Qingdao Municipal Bureau of Housing and Urban-Rural Development,Shandong Qingdao 266033,China;Qingdao Real estate Development Center,Shandong Qingdao 266033,China)
出处
《低温建筑技术》
2023年第5期122-126,共5页
Low Temperature Architecture Technology
关键词
木结构
带齿夹板
螺栓
破坏机理
wood structures
splint with nails
bolts
failure mechanism
