基于可靠度理论的变形监测必要精度指标的确定方法
Obtaining the Necessary Precision Index on Deformation Observation Based on Reliability Theory
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摘要: 以结构安全度为约束条件,将结构的变形测量误差视为等效荷载纳入荷载组合,获取荷载最不利组合状态下的极限变形Δ;从统计力学角度界定变形体的允许变形、必要测量精度指标等参数。Abstract: Under the strict of structural safety,this paper treats the measurement error of deformation observation as an equal value load and puts it into load combination,obtains the maximun deformation value Δ under the most disadvantage situation,and from the point of statistics mechanics defines the parameters such as permitting deformation values of deformation object,necessary measurement precision,etc.simple example proves this method reliable.