摘要
根据第一应变不变量原理,分析了应变计组观测值的应变平衡原理,对部分损坏的应变计组的应变换算进行了探讨,并通过对应变计组不同状态的应力计算进行了验证,研究并总结了判定应变计组有效性的方法,编制了基于因果关系模型的应变计组有效性判断、应变换算和应力计算集一体的程序。
The balance principle of the strain gauge arrays observation is analyzed in detail according to the first invariant of the stress. A partly damaged strain-gauge arrays＇ strain conversion is discussed. The stress computation through the strain gauge arrays under different condition is confirmed. A method for determining the validity of the strain-gauge arrays is studied and summarized. A collection procedure containing the strain-gauge arrays＇ validity judgment, strain conversion, and stress computation is established based on the causal relation model.
出处
《重庆建筑大学学报》
EI
CSCD
北大核心
2008年第5期100-104,共5页
Journal of Chongqing Jianzhu University
基金
国家自然科学基金重点项目(50539030)
国家自然科学基金雅砻江水电开发联合研究基金重点项目(50539110)
关键词
大坝
安全监测
应变计组
应变平衡
因果关系
dam
safety monitoring
strain-gauge arrays
strain balance
causal relation
