全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
冰川冻土  2014 

超低温下钢筋与混凝土粘结性能试验研究

DOI: 10.7522/j.issn.1000-0240.2014.0075, PP. 626-631

Keywords: 超低温,粘结性能,粘结强度,拔出试验

Full-Text   Cite this paper   Add to My Lib

Abstract:

为了探究超低温下钢筋混凝土的粘结锚固性能,考虑从20~-165℃温度下,不同钢筋直径、保护层厚度、锚固长度以及钢筋型号等参数的影响,通过拉拔试验,对超低温条件下钢筋与混凝土粘结锚固破坏特征和粘结性能进行了研究.结果表明钢筋与混凝土的粘结性能受低温影响显著;随着温度的降低,极限粘结强度有增大的趋势,在-80~-120℃时极限粘结强度值达到最大;低温粘结强度提高系数随着相对保护层厚度的增大而减小,且基本呈线性;锚固长度和钢筋型号对低温粘结强度影响较小.

References

[1]  BS EN 14620-2006, Design and Manufacture of Site Built, Vertical, Cylindrical, Flat-Bottomed Steel Tanks for the Storage of Refrigerated, Liquefied Gases with Operating Temperatures Between 0℃ and -165℃[S].
[2]  Huang Dahai, Gu Yi. Experimental study on bond-slip behavior of reinforcement in concrete under low temperatures[J]. Building Science, 2007, 23(9): 51-54. [黄达海, 辜熠. 低温下混凝土中钢筋锚固性能的试验研究[J]. 建筑科学, 2007, 23(9): 51-54.]
[3]  Li Huijie, Xie Jian. Bonding properties between reinforcement and concrete at cryogenic temperatures[J]. Engineering Mechanics, 2011, 28(S1): 80-84. [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(S1): 80-84.]
[4]  Vander V C. Bond Stress-Slip Relationship at Very Low Temperature. Part I: Experimental Results[R]. Delft, The Netherlands: Delft University of Technology, 1987.
[5]  Vandewalle L. Bond between a reinforcement bar and concrete at normal and cryogenic temperatures[J]. Journal of Materials Science Letters, 1989, 8: 147-149.
[6]  Takashi M, Akira T H. Experimental research on bonding behavior of reinforced concrete at extremely-low temperatures[C]//Proceedings of the 3rd Concrete Engineering Bulletin. [S.l.]: [s.n.], 1981: 253-256. [三浦尚, 長谷川明巧. 極低温下のおける鉄筋の重ね継ぎ手強度に関する研究[C]//第3回コンクリート工学年次講演會講演論文集. [S.l.]: [s.n.], 1981: 253-256.]
[7]  Dahmanl L, Khenane A, Kaci S. Behavior of the reinforced co-ncrete at cryogenic temperatures[J]. Cryogenics, 2007, 47: 517-525.
[8]  Miura T. The properties of concrete at very low temperatures[J]. Materials and Structures, 1989, 22: 243-254.
[9]  Xie Jian, Li Huijie. Experimental study on bond properties between reinforcement and concrete at low temperatures[J]. China Civil Engineering Journal, 2012, 45(10): 31-40. [谢剑, 李会杰. 低温下钢筋与混凝土粘结性能的试验研究[J]. 土木工程学报, 2012, 45(10): 31-40.]
[10]  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. [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.]
[11]  Xu Youlin, Shen Wendu, Wang Hong. An experimental study of bond-anchorage properties of bars in concrete[J]. Journal of Building Structures, 1994, 15(3): 26-28. [徐有邻, 沈文都, 汪洪. 钢筋混凝土粘结锚固性能的试验研究[J]. 建筑结构学报, 1994, 15(3): 26-28.]
[12]  Ding Yongjian, Liu Shiyin, Liu Fengjing, et al. Advancement of cold-region hydrology studies over the last two decades in China: In memorial of outstanding cold-region hydrologist, Dr. Ye Baisheng, for his scientific achievements and innovative contributions[J]. Journal of Glaciology and Geocryology, 2012, 34(5): 1009-1022. [丁永建, 刘时银, 刘凤景, 等. 中国寒区水文学研究的新阶段: 记我国杰出寒区水文学家叶柏生研究员的创新与贡献[J]. 冰川冻土, 2012, 34(5): 1009-1022.]
[13]  Wang Jianping, Liu Xiaomin, Chen Honglei. Freezing large shaft design of about one kilometer deep[J]. Journal of Glaciology and Geocryology, 2012, 34(6): 1358-1363. [王建平, 刘晓敏, 陈红蕾. 深大井筒近千米冻结设计的探讨[J]. 冰川冻土, 2012, 34(6): 1358-1363.]
[14]  He Weiwei, Sheng Yu. Numerical analyses of thermal effect of ventilation on the surrounding rock of shaft in permafrost regions (I): Airflow temperature varying in an intake shaft[J]. Journal of Glaciology and Geocryology, 2013, 35(1): 177-185. [何维维, 盛煜. 矿井通风对多年冻土井筒围岩热影响的数值分析(I): 入风井筒风温的变化规律[J]. 冰川冻土, 2013, 35(1): 177-185.]
[15]  Geng Ke. Impacts of freeze-thaw cycle on frost heaving forces on tunnel structures in cold regions[J]. Journal of Glaciology and Geocryology, 2013, 35(4): 913-919. [耿珂. 冻融循环对寒区隧道结构冻胀力的影响[J]. 冰川冻土, 2013, 35(4): 913-919.]

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133