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近年来,随着大容量火力发电机组复杂工艺要求的需要及对结构抗震研究的深入,钢结构因其自身的特点已成为大型火力发电厂主厂房的主要结构形式.主厂房钢框架结构为有支撑结构体系,结构的计算主要根据结构的形式和受力情况来确定该结构应按有侧移计算还是按无侧移计算,而不同的失稳类型对应于不同的计算模型,因此主厂房结构有无侧移失稳类型的判定就尤为重要.针对有支撑钢框架结构在常规判定方法的基础上提出了一种新的判定方法,并通过实际工程验算证实该判定方法的合理性,可供同类结构计算参考.
In recent years, with the requirement of complex process requirements of large-capacity thermal power units and further research on seismic structure, steel structure has become the main structure of the main power plant for large thermal power plants because of its own characteristics. Supporting structure system, the structure is mainly calculated according to the form of the structure and force to determine whether the structure should be calculated with or without lateral displacement, and different types of instability correspond to different calculation models, so the main plant structure It is especially important to judge whether the type of lateral buckling is unstable or not.A new decision method is proposed based on the conventional decision method of supported steel frame structure and the rationality of this decision method is verified through the actual engineering verification Similar structure calculation reference.