木芯复合材料梁柱T型植筋节点受力性能试验研究

玻璃钢/复合材料 ›› 2018, Vol. 0 ›› Issue (8): 25-31.

木芯复合材料梁柱T型植筋节点受力性能试验研究

雍唯一, 齐玉军^*, 方海, 刘伟庆

南京工业大学土木工程学院,南京211816

收稿日期:2018-03-14 出版日期:2018-08-28 发布日期:2018-08-28
通讯作者: 齐玉军(1982-),男,博士,副教授,主要从事新型材料及新型结构方面的研究,qiyujun11@163.com。
作者简介:雍唯一(1993-),男,硕士,主要从事复合材料结构方面的研究。
基金资助:
国家自然科学基金面上项目(51778286);国家自然科学基金面上项目(51578285)

EXPERIMENT STUDY ON BEARING CAPACITY OF GLUED-IN REBAR T-JOINT BETWEEN WOOD SANWICH-FRP COLUMN AND BEAM

YONG Wei-yi, QI Yu-jun^*, FANG Hai, LIU Wei-qing

College of Civil Engineering, Nanjing Tech University, Nanjing 211816, China

Received:2018-03-14 Online:2018-08-28 Published:2018-08-28

摘要/Abstract

摘要： 针对木芯复合材料梁柱T型节点,提出胶接和植筋两种连接方式,前者采用了复合材料节点连接件,后者包括有节点连接件和无节点连接件两种形式。通过剪切-转角试验,分析不同形式节点的力学特性及破坏特征,得到了其剪切-转角曲线、转动刚度和承载力。结果表明:有节点连接件的植筋连接(TJ3)具有良好的弹性性能和承载能力,其承载力分别为无节点连接件的植筋连接(TJ2和TJ4)的2倍和1.6倍;此外,在近节点荷载作用下(剪跨比为5/3),试件TJ3为剪切破坏,其他3个都为受弯破坏;TJ2、TJ3和TJ4螺纹钢筋的应力分布规律大体一致,最大拉应力都位于连接件与柱连接界面处。

关键词: 复合材料, 夹芯结构, T型节点, 破坏模式, 承载力

Abstract: A connector of FRP column to beam was designed. FRP column was fastened to beam by one of two methods: adhesive bond and glue-in rebar. According to shear-rotation test, mechanical properties and failure mode were investigated. Moreover, shear-rotation response, joint rotational stiffness and bearing capacity were also studied. The results show that specimen TJ3 has a better elastic property and bearing capacity. Compared with TJ2 and TJ1, the bearing capacity is increased by 2 and 4 times. Moreover, TJ3 presented the shear failure and the other three specimens presented the flexural failure under nearly joint loading. The distribution of rebar stress of TJ2, TJ3 and TJ4 is consistent, and the maximum tensile stress all occurs at connected interface between conector and column.

Key words: fiber reinforced polymer (FRP), composite sandwich structure, T-joint, failure mode, bearing capacity

中图分类号:

TB332

雍唯一, 齐玉军, 方海, 刘伟庆. 木芯复合材料梁柱T型植筋节点受力性能试验研究[J]. 玻璃钢/复合材料, 2018, 0(8): 25-31.

YONG Wei-yi, QI Yu-jun, FANG Hai, LIU Wei-qing. EXPERIMENT STUDY ON BEARING CAPACITY OF GLUED-IN REBAR T-JOINT BETWEEN WOOD SANWICH-FRP COLUMN AND BEAM[J]. Fiber Reinforced Plastics/Composites, 2018, 0(8): 25-31.

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