摘要
在现有的研究成果基础上,探讨了静-动结合方法用于结构损伤识别的理论基础及可行性.由室内4片梁试验测得的各参数之数据,统计回归出静、动力参数间的关系,力求得到静力参数为因变量,动态参数为自变量的函数关系,从而实现由动力试验得出结构的静刚度,以明确结构的实际状态,以动测静,以刚度求承载力,使检测技术在整体分析基础上判定损伤程度,用最经济的投入取得最有效的结果.
Based on the study present,the paper is mainly focused on the theoretical basis and feasibility of the method of statics and dynamics combined for structural damage detection.The relation of static parameters and dy-namic parameters will be got from the experimental results.And what the aim is to attain the function whose depen-dent variable is static parameters and independent variable is dynamic parameters.Then the static stiffness of struc-ture can be attained by dynamic test,and the real state of structure can be known.In short,we can get static data from dynamic test and so do bearing capacity from stiffness.Structural damage degree can be known from detection based on the global analysis and the most valid result can be gained with the least input.
出处
《吉林建筑工程学院学报》
CAS
2010年第5期12-16,共5页
Journal of Jilin Architectural and Civil Engineering
关键词
桥梁工程
钢筋混凝土梁
静、动刚度
非线性回归分析
bridge engineering
reinforced concrete beam
static stiffness and dynamic stiffness
nonlinear regression analysis
