Based on the principle of maximal kinetic energy, the test results of the frame column local modes were selected, and the numerical simulations and tests indicated that the local mode representing the maximal kinetic energy would be more effective in member damage diagnosis. 基于最大动能的原则,对框架柱局部模态的测试结果进行挑选。数值模拟和试验表明,代表最大动能的局部模态可以比低阶模态更有效地诊断构件的损伤。