拱结构的损伤研究
Study on Damage of Arch Structure

作者: 李海玲 , 孙作玉 :广州大学土木工程学院,广东 广州 ;

关键词: 损伤识别有限元分析拱结构模态信息Damage Detection Finite Element Analysis Arch Structure Modal Information

摘要:
建筑结构形式向大型的、超限的、复杂的方向发展,而拱形结构是其中应用广泛的一种。建筑结构在各种不利因素的影响下,极可能发生结构损伤,甚至发生致命危害。结构损伤会导致结构的模态参数变化,因此,通过一个拱结构的有限元分析,提取频率,振型等模态信息,对模态差,一阶导,二阶导分析,探寻其损伤位置,结果表明能通过突变情况得到单元的损伤位置。

Abstract: As the further development of large, overrun, complex civil engineering structure, arch structure is one of the most widespread structures. Under the influence of various unfavorable factors, civil engineering structure may cause damage, even catastrophic accidents. Structural damage will cause the structure modal parameters change. Therefore, by means of the finite element analysis of an arch structure, mode information was extracted such as the frequency and mode shape. And by means of the analysis of the mode difference, the first and the second derivative, the damage location was explored. The results showed that the damage location could be obtained by the mu-tation situation.

文章引用: 李海玲 , 孙作玉 (2015) 拱结构的损伤研究。 土木工程, 4, 180-185. doi: 10.12677/HJCE.2015.44023

参考文献

[1] 杨伟松 (2012) 典型结构模态精确测试及损伤识别方法研究. 中国地震局工程力学研究所, 哈尔滨.

[2] 纪晓东, 钱稼茹 (2008) 损伤定位向量法原理和应用. 工程力学, 25, 10-20.

[3] Cawley, P. and Adams, R.D. (1979) The location of detects in structures from measurements of natural frequencies. Journal of Strain Analysis, 14, 49-57.
http://dx.doi.org/10.1243/03093247V142049

[4] Pandey, A.K., Biswas, M. and Samman, M.M. (1991) Damage detection from changes in curvature mode shape. Journal of Sound and Vibration, 145, 321-332.
http://dx.doi.org/10.1016/0022-460X(91)90595-B

[5] Pandey, A.K., Biswas, M. and Samman, M.M. (1994) Damage detection in structures using changes in flexibility. Journal of Sound and Vibration, 169, 3-17.
http://dx.doi.org/10.1006/jsvi.1994.1002

[6] messina, A., Williams, E.J. and Cotursi, T. (1998) Structural damage detection by a sensitivity and statistical-based method. Journal of Sound and Vibration, 216, 791-808.
http://dx.doi.org/10.1006/jsvi.1998.1728

[7] 袁向荣 (1994) 梁的破坏对频率、振型及振型曲率的影响. 振动、测试与诊断, 14, 40-44.

[8] 邓焱, 严普强 (2000) 梁及桥梁应变模态与损伤测量的新方法. 清华大学学报(自然科学版), 40, 123-127.

[9] 徐丽, 易伟建 (2004) 基于模态参数的混凝土框架结构损伤诊断研究. 湖南大学, 长沙.

[10] 赵俊, 马宏伟 (2007) 基于曲率模态的拱结构损伤识别方法研究. 暨南大学, 广州.

[11] 程良彦, 马宏伟 (2010) 拱结构的损伤识别方法及损伤结果可视化研究. 暨南大学, 广州.

[12] 许念勇, 汤红卫 (2012) 框架结构模态分析与损伤识别. 山东大学, 济南.

分享
Top