中文摘要：

比较了剪切型框架结构几种损伤定位指标，包括振型曲率、残余力向量、柔度矩阵和一阶振型斜率的有效性。通过一个10层剪切型框架结构的数值分析表明，振型曲率的改变不能正确识别结构损伤位置；残余力向量能够识别结构损伤位置，但需要预先获得结构完好状态下的刚度矩阵；柔度矩阵的改变能够识别结构损伤位置，但必须获得结构完整模态，包括难以准确测量的高阶模态；利用结构一阶振型斜率的改变能够克服上述缺点，可简便、准确地识别结构损伤位置。

英文摘要：

Comparative study was carried out for locating the damage of shear-type frame structures using several different damage indices. These damage indices included mode shape curvature, residual force vector, flexibility matrix and the first mode shape slope. Some useful results were obtained by a numerical simulation of a 10-story shear-type frame structure. Damage can not be located correctly through the changes in mode shape curvature. Despite the fact that damage can be located by means of residual force vector, structural stiffness matrix in undamaged state must be known in advance. Under the condition that flexibility matrix obtained is accurate, damage can be located correctly by detecting the change in flexibility matrix. However, it is difficult to obtain accurate flexibility matrix owing to the lack of high order modal parameters. Based on the analysis of the changes in the first order mode shape slopes between undamaged and damaged scenarios, damage can be located correctly without the shortcomings mentioned above.