基于双线性模型的屈曲约束支撑试验方法和标准化参数识别研究

Research on test method and standardized parameter recognition of buckling restrained brace based on bilinear model

由于屈曲约束支撑具有独特的优势,近年来被大量应用于工程项目中。但屈曲约束支撑的试验及数据处理方法在前期多采用能量等效法,造成较大的误差,甚至得到错误的结论。根据实际测试情况,以及对各种操作方法进行对比分析,基于双线性模型提出了一种对屈曲约束支撑试验方法和标准化参数识别的数据处理分析方法。通过此种方法能准确、快速地识别出屈曲约束支撑的各项性能参数。

Buckling restrained brace(BRB)has been widely used in engineering projects in recent years due to its unique advantages.However,most of the experimental and data processing methods of buckling restrained braces usually adopt energy equivalence method in the early stage,resulting in large errors and even the wrong conclusion.According to the actual test situation and the comparative analysis of various methods,a data processing and analysis method based on bilinear model for buckling restrained bracing test method and standardized parameter identification was proposed.Through this method,the actual performance parameters of buckling restrained braces can be identified accurately and quickly.