上海大学学报(自然科学版) ›› 2021, Vol. 27 ›› Issue (6): 1106-1117.doi: 10.12066/j.issn.1007-2861.2149

• 研究论文 • 上一篇    下一篇

近代木结构柱-梁节点转动刚度及木材弹性模量的检测方法

刘剑珲, 徐超, 欧阳煜()   

  1. 上海大学 土木工程系, 上海 200444
  • 收稿日期:2019-03-11 出版日期:2021-12-31 发布日期:2020-02-02
  • 通讯作者: 欧阳煜 E-mail:oyy_wly@sin.com
  • 作者简介:欧阳煜(1968—), 男, 副教授, 博士, 研究方向为结构稳定性结构加固与修复. E-mail: oyy_wly@sin.com

Method for detecting rotational stiffness of column-beam joints and timber elastic modulus of modern timber structures

LIU Jianhui, XU Chao, OUYANG Yu()   

  1. Department of Civil Engineering, Shanghai University, Shanghai 200444, China
  • Received:2019-03-11 Online:2021-12-31 Published:2020-02-02
  • Contact: OUYANG Yu E-mail:oyy_wly@sin.com

摘要:

以新泰仓库木柱-木梁结构为原型进行木构架缩尺试验, 研究木柱-木梁结构的受力性能和变形特征. 试验结果表明, 木柱-木梁节点具有明显的半刚性连接特征, 节点刚度随荷载的变化而变化. 通过量测木梁跨中竖向位移、木柱中部侧向位移, 并结合计算分析, 相对准确地确定了木材弹性模量的上、下限值和平均值. 本方法通过对木结构做现场检测试验即可求得柱-梁节点的转动刚度和木材弹性模量, 对历史保护建筑的检测鉴定与加固设计具有一定的参考意义.

关键词: 木结构建筑, 木柱-木梁节点, 转动刚度, 弹性模量

Abstract:

The mechanical properties and deformation characteristics of wooden column-beam structures are studied by using the wooden column-beam structures of a Xintai Warehouse as a prototype. The results show that the wooden column-beam joints have obvious semi-rigid connection characteristics, and the joint stiffness changes with the load. In addition, the upper and lower limits and the average value of the elastic modulus of the wood are determined relatively accurately by measuring the vertical displacement of the wooden beam and the lateral displacement of the middle of the wooden column, combined with the relevant calculation and analysis. The rotational stiffness of the column-beam joint and elastic modulus can be obtained by performing an on-site test on the wood structure to be tested using the proposed method. The results of this study have significance for the detection, identification and reinforcement design of historically protected buildings.

Key words: wooden structures, wooden column-beam joints, rotational stiffness, elastic modulus

中图分类号: