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工程力学  2014 

超低温环境下箍筋约束混凝土轴心受压性能试验研究

, PP. 103-108

Keywords: 结构工程,超低温,试验,钢筋混凝土,箍筋约束,延性,应力-应变曲线

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Abstract:

为研究超低温环境下箍筋约束混凝土轴心受压性能,对超低温环境下钢筋混凝土结构,尤其是轴心受压构件的分析和设计工作提供试验依据和数据支持,通过3组体积配箍率不同的钢筋混凝土试件的轴心受压试验,研究混凝土应力-应变曲线、荷载-位移曲线随温度的变化趋势。对温度参数无量纲化处理后,进一步研究配箍特征值对混凝土强度、峰值应变、延性的影响规律,并进行应力-应变曲线拟合。结果表明：温度降低,箍筋约束混凝土的峰值应力、弹性模量提高,峰值应变减小,脆性增大；配箍特征值增大,混凝土强度、峰值应变、延性均增大,弹性模量变化不大；试验所得应力-应变曲线与理论曲线吻合较好。

 References

[1]  陈锦年, 褚健婷, 许兰英. 南极气候和海冰的时空变化特征及其与太平洋海温场的关系[J]. 海洋学报(中文版), 2003, 25(6): 39―47.
[2]  Chen Jinnian, Chu Jianting, Xu Lanying. Spatio-temporal characteristics of Antarctic temperature and sea ice and their relationship [J]. Acta Oceanologica Sinica, 2003, 25(6): 39―47. (in Chinese)
[3]  侯文崎, 叶梅新. 青藏铁路钢-混凝土组合结构低温试验研究[J]. 湖南科技大学学报(自然科学版), 2004, 19(3): 53―57.
[4]  Hou Wenqi, Ye Meixin. Study of steel-concrete composite structures of Qinghai-Tibet railway under low temperature [J]. Journal of Hunan University of Science & Technology (Natural Science Edition), 2004, 19(3): 53―57. (in Chinese)
[5]  顾安忠. 迎向“十二五”中国LNG的新发展[J]. 天然气工业, 2011, 31(6): 1―11.
[6]  Gu Anzhong. Outlook of LNG development in the twelfth “Five Year” plan of China [J]. Natural Gas Industry, 2011, 31(6): 1―11. (in Chinese)
[7]  Lahlou Dahmani, Amar Khenane, Salah Kaci. Behavior of the reinforced concrete at cryogenic temperatures [J]. Cryogenics, 2007, 47(9): 517―525.
[8]  Takashi Miura. The properties of concrete at very low temperatures [J]. Materials and Structures, 1989, 22(4): 243―254.
[9]  王传星, 谢剑, 杨建江. 超低温环境下混凝土的性能[J]. 低温建筑技术, 2009, 32(9): 8―10.
[10]  Wang Chuanxing, Xie Jian, Yang Jianjiang. Properties of concrete under extremely low temperatures [J]. Low Temperature Architecture Technology, 2009, 32(9): 8―10. (in Chinese)
[11]  谢剑, 王传星, 李会杰. 超低温混凝土降温回温曲线的试验研究[J]. 低温建筑技术, 2009, 32(3): 1―3.
[12]  Xie Jian, Wang Chuanxing, Li Huijie. Experimental study on the curve of the temperature reduction and comeback in concrete [J]. Low Temperature Architecture Technology, 2009, 32(3): 1―3. (in Chinese)
[13]  李会杰, 谢剑. 超低温环境下钢筋与混凝土的粘结性能[J]. 工程力学, 2011, 28(增Ⅰ): 80―84.
[14]  Li Huijie, Xie Jian. Bonding properties between reinforcement and concrete at cryogenic temperatures [J]. Engineering Mechanics, 2011, 28(Suppl Ⅰ): 80―84. (in Chinese)
[15]  王传星, 谢剑, 李会杰. 低温环境下混凝土性能的试验研究[J]. 工程力学, 2011, 28(增Ⅱ): 182―186.
[16]  Wang Chuanxing, Xie Jian, Li Huijie. Experimental research on the properties of concrete under low- temperature [J]. Engineering Mechanics, 2011, 28(Suppl Ⅱ): 182―186. (in Chinese)
[17]  吴洪海, 谢剑. 超低温冻融循环作用对混凝土性能的影响[C]// 中国力学学会. 第20届全国结构工程学术会议论文集(第Ⅰ册). 北京: 工程力学杂志社, 2011: 403―406.
[18]  Wu Honghai, Xie Jian. Experimental analysis on properties of concrete after freeze-thaw cycles under extra-low temperatures [C]// The Chinese Society of Theoretical and Applied Mechanics. Proceedings of the 20th Annual National Conference on Structural Engineering (Ⅰ), Beijing: Engineering Mechanics Press, 2011: 403―406. (in Chinese)
[19]  魏强, 谢剑, 吴洪海. 超低温冻融循环作用对混凝土材料性能的影响[J]. 工程力学, 2013, 30(增Ⅰ): 125―131.
[20]  Wei Qiang, Xie Jian, Wu Honghai. Cryogenic freezing and thawing cycle effect on the properties of concrete material [J]. Engineering Mechanics, 2013, 30(SupplⅠ): 125―131. (in Chinese)
[21]  赵彤, 谢剑, 戴自强. 碳纤维布约束混凝土应力-应变全曲线的试验研究[J]. 建筑结构, 2000, 30(7): 41―43, 64.
[22]  Zhao Tong, Xie Jian, Dai Ziqiang. Experimental research on stress-strain full curves of concrete confined by carbon fiber sheet (CFS) [J]. Building Structure, 2000, 30(7): 41―43, 64. (in Chinese)
[23]  钱稼茹, 程丽荣, 周栋梁. 普通箍筋约束混凝土柱的中心受压性能[J]. 清华大学学报(自然科学版), 2002, 42(10): 1369―1373.
[24]  Qian Jiaru, Cheng Lirong, Zhou Dongliang. Behavior of axially loaded concrete columns confined with ordinary hoops [J]. Journal of Tsinghua University (Science and Technology), 2002, 42(10): 1369―1373. (in Chinese)
[25]  过镇海, 张秀琴, 张成达, 等. 混凝土应力-应变曲线的试验研究[J]. 建筑结构学报, 1982, 3(1): 1―11.
[26]  Guo Zhenhai, Zhang Xiuqin, Zhang Chengda, et al. Experimental investigation of the complete stress-strain curve of concrete [J]. Journal of Building Structures, 1982, 3(1): 1―11. (in Chinese)
[27]  杨政, 廖红建, 楼康禺. 微粒混凝土受压应力应变全曲线试验研究[J]. 工程力学, 2002, 19(2): 90―94.
[28]  Yang Zheng, Liao Hongjian, Lou Kangyu. Experimental study of the full curve of the stress-strain relationship for micro-concrete [J]. Engineering Mechanics, 2002, 19(2): 90―94. (in Chinese)

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