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竹-混凝土组合梁的受弯性能

魏洋 周梦倩 纪雪微 端茂军 李国芬

魏洋, 周梦倩, 纪雪微, 端茂军, 李国芬. 竹-混凝土组合梁的受弯性能[J]. 西南交通大学学报, 2017, 30(6): 1148-1155. doi: 10.3969/j.issn.0258-2724.2017.06.015
引用本文: 魏洋, 周梦倩, 纪雪微, 端茂军, 李国芬. 竹-混凝土组合梁的受弯性能[J]. 西南交通大学学报, 2017, 30(6): 1148-1155. doi: 10.3969/j.issn.0258-2724.2017.06.015
WEI Yang, ZHOU Mengqian, JI Xuewei, DUAN Maojun, LI Guofen. Flexural Performance of Composite Bamboo-Concrete Beams[J]. Journal of Southwest Jiaotong University, 2017, 30(6): 1148-1155. doi: 10.3969/j.issn.0258-2724.2017.06.015
Citation: WEI Yang, ZHOU Mengqian, JI Xuewei, DUAN Maojun, LI Guofen. Flexural Performance of Composite Bamboo-Concrete Beams[J]. Journal of Southwest Jiaotong University, 2017, 30(6): 1148-1155. doi: 10.3969/j.issn.0258-2724.2017.06.015

竹-混凝土组合梁的受弯性能

doi: 10.3969/j.issn.0258-2724.2017.06.015
基金项目: 

国家自然科学基金资助项目(51208262,51778300)

江苏省自然科学基金资助项目(BK20151520)

江苏省"333"工程和"青蓝工程"资助项目(BRA2016421)

江苏省高校优势学科建设工程资助项目(PAPD)

详细信息
    作者简介:

    魏洋(1978-),男,教授,博士,博士生导师,研究方向为新型材料与新型结构,电话:025-85427747,E-mail:wy78@njfu.edu.cn

Flexural Performance of Composite Bamboo-Concrete Beams

  • 摘要: 为了研究竹-混凝土组合梁的组合效率及剪力连接件的影响,进行了3根竹-混凝土组合梁和1根对比竹梁的试验,组合梁的剪力连接件形式分别为销栓型、凹槽型和凹槽-销栓型.研究结果表明:销栓型连接件竹-混凝土组合梁发生底面竹纤维受拉断裂的破坏,凹槽型组合梁和凹槽-销栓型组合梁发生凹槽底部水平位置处竹材的纵向剪切破坏;与竹梁相比,竹-混凝土组合梁在跨中挠度为跨度1/250时的荷载提高了3.18~3.74倍,等效截面刚度为刚性连接组合梁截面刚度的70%;凹槽型连接件和凹槽-销栓型连接件的组合梁,界面滑移小于1.2 mm,荷载挠度曲线呈线性,连接件表现出刚性连接性能.

     

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出版历程
  • 收稿日期:  2015-12-18
  • 刊出日期:  2017-12-25

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