[1]侯 炜,贺拴海,张 岗.防火涂层对高温后混凝土抗压强度的影响[J].西安建筑科技大学学报:自然科学版,2014,(02):241-246.[doi:10.15986/j.1006-7930.2004.02.015]
 HOU Wei,HE Shuanhai,ZHANG Gang.Effects of fire protection layer on compressive strength of concreteafter high temperature[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2014,(02):241-246.[doi:10.15986/j.1006-7930.2004.02.015]
点击复制

防火涂层对高温后混凝土抗压强度的影响()
分享到:

西安建筑科技大学学报:自然科学版[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2014年02期
页码:
241-246
栏目:
出版日期:
2014-04-30

文章信息/Info

Title:
Effects of fire protection layer on compressive strength of concrete
after high temperature
文章编号:
1006-7930(2014)02-0241-06
作者:
侯 炜贺拴海张 岗
(长安大学公路学院陕西 西安710064)
Author(s):
HOU Wei HE Shuanhai ZHANG Gang
( School of Highway, Chang’an University, Xi’an 710064, China )
关键词:
防火涂层混凝土高温抗压强度
Keywords:
fire-resistant layerconcretehigh-temperaturecompressive strength
分类号:
X932
DOI:
10.15986/j.1006-7930.2004.02.015
文献标志码:
A
摘要:
对126 个涂有防火层的C50混凝土试件进行高温作用,自然冷却后对其进行抗压强度试验.通过对有、无防火涂层试件的损伤形态对比分析及对高温后损伤试件的抗压强度试验,探讨了防火涂层对混凝土高温作用后抗压性能的影响程度,得到了高温作用后试件抗压强度与防火涂层厚度、强度折减系数与防火涂层厚度的回归计算公式.试验研究表明,防火涂层对混凝土构件遭受高温作用有较好的保护作用.因此对于特殊区域采用防火涂层的混凝土结构,在遭受高温作用后的灾损性能进行研究是很有必要的,对混凝土结构抗火设计及规范制定提供一定参考.
Abstract:
High temperature is imposed on 126 concrete cubes(C50)with fire-resistant layer from 0.2mm to 1.0mm and the compressive strength after nature cooling. Through analysis on the damage morphology of cubes with and without fire-resistant layer and the test of compressive performance, the influence of fire-resistant layer coating on the strength of concrete after high temperature is discussed, and concrete?cubes compressive intensity after high temperature with?fire-resistant layer?thickness, and concrete intensity?reduction factor?with?fire-resistant layer thickness regression?formula are both obtained.?Experimental research shows that the concrete structures with fire-resistant layer subject to high temperature produce better protection. For the concrete structures in special region, it’s very necessary to study on the disaster loss performance after high temperature. Some basis of the design and draft code for fire resistance of concrete structures are provided

参考文献/References:

[1] SAVVA A, MANITA P, SIDERIS K K. Influence of elevated temperatures on the mechanical properties of blended cement concretes prepared with limestone and siliceous aggregates[J]. Cement and Concrete Composites, 2005, 27(2): 239-248.
[2] ZHANG Binsheng , NENAD Bicanic, PEARCE Christopher J, et al. Relationship between brittleness and moisture loss of concrete exposed to high temperatures[J]. Cement and Concrete Research, 2002, 32 (3): 363-371.
[3] POON C S, SHUI Z H. Compressive behavior of fiber reinforced high-performance concrete subjected to elevated temperatures[J]. Cement and Concrete Research, 2004, 34(12): 2215-2222.
[4] KHANDAKER M, ANWAR Hossain. High strength blended cement concrete incorporating volcanic ash: performance at high temperatures[J]. Cement and Concrete Composites, 2006, 28(6): 535-545.
[5] 贾锋. 受高温后混凝土抗压强度的试验研究[J]. 青岛建筑工程学院学报, 1997, 18(1): 10-14.
JIA Feng. An experimental research on the compressive strength of the heated concrete[J]. Journal of Qingdao Institute of Architecture and Engineering. 1997, 18(1): 10-14.
[6] 余志武, 丁发兴, 罗建平. 高温后不同类型混凝土力学性能试验研究[J]. 安全与环境学报, 2005, 5(5): 1-6.
YU Zhiwu, DING Faxing, LUO Jianping. Experimental research on mechanical properties of different type of concrete after high temperature[J]. Journal of Safety and Environment, 2005, 5(5): 1-6.
[7] 吕天启, 赵国藩, 林志伸. 高温后静置混凝土力学性能试验研究[J]. 建筑结构学报, 2004, 25(1): 63-70.
L? Tianqi, ZHAO Guofan, LIN Zhishen. Experimental study on mechanical properties of long standing concrete after exposure to high temperature[J]. Journal of Building Structures, 2004, 25(1): 63-70.
[8] 杜耀峰, 郭子雄, 吴毅彬. 粉刷层对混凝土遭受高温作用后抗压性能的影响[J]. 建筑技术, 2009, 40(1): 20-23.
DU Yaofeng, GUO Zixiong, WU Yibin. Study on compressive properties of concrete with mortar cover after subjected to high
temperatures[J]. Architecture Technology, 2009, 40(1): 20-23.

相似文献/References:

[1]丁红岩,梁玉国,高天宝,等.基于可靠度理论的无机胶植筋设计方法[J].西安建筑科技大学学报:自然科学版,2015,(01):6.[doi:10.15986/j.1006-7930.2015.01.002]
 DING Hongyan,LIANG Yuguo,GAO Tianbao.The design method of inorganic glue bonded rebars based on reliability theory[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2015,(02):6.[doi:10.15986/j.1006-7930.2015.01.002]
[2]于本田,王起才,周立霞,等.兰新铁路第二双线混凝土矿物掺合料掺量优化试验研究[J].西安建筑科技大学学报:自然科学版,2012,(03):351.[doi:10.15986/j.1006-7930.2012.03.008]
 YU Ben-tian,WANG Qi-cai,ZHOU Li-xia,et al.Optimization research on the contents of mineral admixture of concrete in the 2nd double line of Lanzhou-Xinjiang Railway[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2012,(02):351.[doi:10.15986/j.1006-7930.2012.03.008]
[3]马中军,谈志诚,张 铟.混凝土桥梁应变的区间型预警阈值设定[J].西安建筑科技大学学报:自然科学版,2013,(04):526.[doi:10.15986/j.1006-7930.2013.04.011]
 MA Zhong-jun,TAN Zhi-cheng,ZHANG Yin.Interval strain threshold setting method for early warning of concrete bridge[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2013,(02):526.[doi:10.15986/j.1006-7930.2013.04.011]
[4]韦 俊,孟 浩,薛圣广.钢筋不均匀锈蚀引起的混凝土保护层开裂有限元分析[J].西安建筑科技大学学报:自然科学版,2011,(05):747.[doi:DOI :10.15986/j .1006-7930.2011.05.019]
 WE I J un,MENG Hao,XUE Sheng-guang.FEM analysis on the crack process of concrete coverinduced by non-uniform corrosion of re-bar[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2011,(02):747.[doi:DOI :10.15986/j .1006-7930.2011.05.019]
[5]牛荻涛,陆炫毅,苗元耀,等.盐雾环境下疲劳损伤混凝土氯离子扩散性能[J].西安建筑科技大学学报:自然科学版,2015,(05):617.[doi:DOI:10.15986/j.1006-7930.2015.05.001]
 NIU Ditao,LU Xuanyi,MIAO Yuanyao,et al.Diffusion of chloride ions into fatigue-damaged concrete in salt spray environment[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2015,(02):617.[doi:DOI:10.15986/j.1006-7930.2015.05.001]
[6]朱方之1,马志鸣2,蒋连接1,等.持载和冻融循环对钢筋混凝土粘结性能的影响[J].西安建筑科技大学学报:自然科学版,2016,(05):643.[doi:10.15986/j.1006-7930.2016.05.005]
 ZHU Fangzhi,MA Zhiming,JIANG Lianjie,et al.Study of influence of sustained load and freeze-thaw cycling on the bond behavior of steel reinforced concrete[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2016,(02):643.[doi:10.15986/j.1006-7930.2016.05.005]
[7]胡晓鹏,孙广帅,张成中,等.混凝土早期碳化性能的试验研究[J].西安建筑科技大学学报:自然科学版,2017,(04):492.[doi:10.15986/j.1006-7930.2017.04.005]
 HU Xiaopeng,SUN Guangshuai,ZHANG Chengzhong,et al.Experimental study on early carbonation of concrete[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2017,(02):492.[doi:10.15986/j.1006-7930.2017.04.005]

备注/Memo

备注/Memo:
收稿日期:2013-12-16 修改稿日期:2014-04-08
基金项目:国家青年自然科学基金项目(51308056)
作者简介:侯炜(1983-),男,博士研究生,主要研究桥梁结构理论分析.E-mail: houwei831012@163.com
更新日期/Last Update: 2015-10-10