红外热像法识别粘钢法加固混凝土结构空鼓缺陷研究
PDF下载 (427)罗元丰,杨英武,王茜茜,孙 列.红外热像法识别粘钢法加固混凝土结构空鼓缺陷研究[J].宁波大学学报(理工版),2019,32(2):81-84.DOI:
LUO Yuan-feng,YANG Ying-wu,WANG Xi-xi,SUN Lie.Study on infrared thermography technology used for detecting the bond defects of steel-bonded reinforcement concrete structure[J].Journal of Ningbo University(Natural Science & Engineering Edition),2019,32(2):81-84.DOI:
| Title: | Study on infrared thermography technology used for detecting the bond defects of steel-bonded reinforcement concrete structure |
| 作者: | 罗元丰, 杨英武, 王茜茜, 孙 列 |
| Author(s): | LUO Yuan-feng, YANG Ying-wu, WANG Xi-xi, SUN Lie |
| 关键词: | 粘钢加固混凝土结构; ANSYS热学有限元; 红外热像法; 无损检测 |
| Keywords: | steel-bonded concrete structure; ANSYS thermal finite element analysis; infrared thermography; none-destructive test |
| 分类号: | TU375 |
| 文献标识码: | A |
| 摘要: | 基于ANSYS有限元方法, 模拟分析胶粘层不同缺陷尺寸和类型, 分类研究钢板内侧粘结层缺陷尺寸与钢板表面温度分布的关系. 结果表明: 在同一热激励下, 当粘结空鼓缺陷远离钢板, 且空鼓与钢板之间存在结构胶夹层时, 长时间的激励才能在钢板外表面形成粘结空鼓中心与边缘的较大温差. 由于热量向空鼓方向传递的同时也沿钢板平面向周围传递, 造成钢板外表面温度变化不明显, 因此检测识别较为困难. |
| Abstract: | The different defect sizes and types of the bond layer of the RC members bonded with steel plate are simulated and analyzed by ANSYS finite element method, and the relationship is classified between the layer defect sizes and the temperature distribution on the out surface of steel. According to the results, under the same thermal excitation, when bonding defects are far away from the steel plate and there is a thin bonding layer between the defects and the steel plate, longer thermal excitation time will be required to get the maximum temperature differences on the steel’s outer surface between the center and the edge of the bonding defects. For the reasons that heat transfers not only to defects but also to the surroundings along the steel plate plane, the temperature variation on the steel outer surface are less obvious. All these result in the difficulties of defects detecting. |
| 参考文献 /References: | [1] 王裕文, 梅林, 张广明. 红外热成像无损检测技术及其应用现状[C]//第九届激光检测技术学术会议论文集, 北京: 机械工业出版社, 1998:78-82. [2] 谢春霞. 红外热像检测技术在粘钢加固法中的研究[J]. 四川建筑, 2011, 31(3):170-171. [3] 杨英武, 张欣, 杨小清, 等. 红外热像法识别混凝土结构粘钢加固缺陷的试验研究[J]. 低温建筑技术, 2018, 40(5):21-27. [4] 杨世铭, 陶文铨. 传热学[M], 北京: 高等教育出版社, 2006:41-46. [5] 袁昕, 谢慧才, 陈高峰. 建筑物外墙饰面砖粘贴质量的红外热像检测试验研究[J]. 四川建筑科学研究, 2003, 29(2):43-45. [6] 沈立华, 孙丰瑞, 杨立, 等. 单面法红外检测钢板内壁缺陷温度场研究[J]. 激光与红外, 2006, 36(1):19-22. |
| 备注/Memo: | 收稿日期: 2018－04－12. 宁波大学学报（理工版）网址: http://journallg.nbu.edu.cn/ 基金项目: 住房与城乡建设部软科学研究项目（2017-K9-015）. 宁波大学学报（理工版）网址：http://journallg.nbu.edu.cn/第一作者: 罗元丰（1975－）, 男, 浙江临海人, 高级工程师, 主要研究方向: 建筑工程及材料检验检测. E-mail: 417524970@qq.com *通信作者: 杨英武（1975－）, 男, 陕西澄城人, 博士/高级工程师, 主要研究方向: 结构检测与加固等. E-mail: yangyw06@163.com |
