结构损伤识别的一阶曲率模态比值  

STUDY ON FIRST-ORDER CURVATURE MODAL RATIO OF STRUCTURE DAMAGE IDENTIFICATION

作　　者：林立香[1] 李万举[2] 霍达[3] 滕海文[3] 

机构地区：[1]北京理正软件设计研究院,北京100044 [2]北京市道路工程质量监督站,北京100076 [3]北京工业大学建筑工程学院,北京100022

出　　处：《工业建筑》2007年第z1期201-203,共3页Industrial Construction

基　　金：北京市自然科学基金项目(8031001)

摘　　要：结构在其建设-使用-退役这样一个相当长的过程中出现损伤和破坏是不可避免的,而这将严重影响到城市的发展和人们的生产生活情况。所以,了解损伤、发现损伤以及进行维修加固十分必要。从基于曲率模态的损伤识别指标法入手,提出一阶曲率模态比值,并用ANSYS对一钢筋混凝土单跨简支梁进行了数值仿真。重点研究了单处损伤情况下,结构损伤程度的识别,得出一些有意义的成果。It is inevitable to occur the damage and destruction of the structure during quite long times of its construction-applicationretirement,which will affect the city's development and people's life.Therefore,it is very necessary to understand the damage and discover it and carry on the maintenance and reinforcement.Starting with damage identification index method on the basis of the curvature modal,the first-order curvature modal ratio is proposed,then it is made a numerical simulation analysis for a single span reinforced concrete simple bridge with ANSYS.The identification of structure damage degree under the damage on the single position is studied,and some significant achievements are also got.

关 键 词：损伤识别 损伤指标 一阶曲率模态比值 

分 类 号：TU312.3[建筑科学—结构工程]