本文介绍了在顺德电厂实测获得的各种动力参数,通过分析,找出了副厂房主、次梁产生裂缝的原因。进行了动力拟合计算,得出了垂直和水平的激振力以及相应的动位移、动内力。提出了主、次梁粘钢加固设计方案,进行了实际工程加固、动力模型试验及有限元计算。判明了加固后粘钢在振动情况下钢板是否剥落以及由于刚度改变,是否会发生“共振”现象。 This article describes the various dynamic parameters obtained in the Shunde power plant. Through analysis, the causes of cracks in the main and secondary beams of the auxiliary plant are identified. A dynamic fit calculation was performed to obtain the vertical and horizontal excitation force and the corresponding dynamic displacement and dynamic internal force. The main and secondary beam bonded steel reinforcement design proposal was put forward, and the actual engineering reinforcement, dynamic model test and finite element calculation were carried out. It was found out whether or not the steel plate peels off after vibration and whether the “resonance” phenomenon occurs due to the change in stiffness.