梁结构基于曲率模态的损伤定量识别  

QUANTITATIVE DAMAGE DETECTION OF GIRDER STRUCTURE BASED ON CURVATURE MODE

作　　者：李燕[1,2] 白羽[1,2] 

机构地区：[1]昆明理工大学建筑工程学院,昆明650500 [2]云南省抗震工程技术研究中心,昆明650500

出　　处：《低温建筑技术》2016年第12期46-49,共4页Low Temperature Architecture Technology

基　　金：国家自然科学基金项目(51168024)

摘　　要：基于曲率模态的损伤检测方法易于辨识损伤位置和定性反映损伤程度,但确定损伤程度的简单计算式很少。为解决此问题,文中通过引入均匀试验构造了单处损伤结构样本,回归分析其曲率模态变化值和损伤位置与程度之间的响应关系,得到了损伤程度识别的计算式。通过算例表明该方法对于损伤程度的识别具有较高精度。Damage detection based on curvature mode is easy to locate the damage and can reflect the degree of damage qualitatively, however, an explicit formula for detecting damage degree has been given rarely eral damage To solve this problem, uniform experiment design method is introduced degree detection equation is obtained by tween the change of curvature mode and damage making regression analysis for , and then the gen- the relationship beposition and degree of every single damage sample which is been defined by uniform design. The examples results show that this method has high precision and can be used in quantitative damage detection.

关 键 词：曲率模态 损伤检测 定量识别 均匀设计 

分 类 号：TU311.3[建筑科学—结构工程]