【摘要】 应用有限元仿真法和灰色预测理论，以结构因有频率的下降率为特征参数，对钢筋混凝土梁的裂缝损伤问题进行了故障诊断和预测分析，得到了一些有益的结果，提出了一种对工程结构进行故障诊断和预测的新方法，实际表明此方法是切实可行的；更多还原

【Abstract】 Taking the ratio of frequency drops as characteristic parameter, the crack fault in reinforced concrete beam was diagnosed and forecasted, applying finite element emulation method and grey forecast theory. We put forward a new method to forecast the crack fault in engineering structure and shows that this method is feasible to diagnose the crack fault.更多还原