基于振型数据的框架结构损伤评估

Damage Assessment of Plane Frame Structure Based on Modal Shape Data

近年来对结构的损伤评估多局限于小型结构 ,并强调利用结构损伤前后较高阶的模态数据 .本文将结构的损伤评估分为定位和定量两个独立的过程 ,基于结构损伤后的振型数据 ,实现了对一平面框架结构的精确损伤评估 .数值模拟结果表明 。

Recent years the damage assessment of structure has been focused on small structures,and more emphases were put on using the modal parameters of the intact and damaged structures. In this paper,structural damage assessment is divided into two separate process,localization and quantification. Precise damage assessment of a plane frame structure is realized through the use of modal shape data of the damaged structure. Numerical analysis results indicate that this method is of great practical importance for the damage assessment of moderate and large structures.