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按照现行中国抗震设计规范设计了多种层数的钢筋混凝土框架结构,设计中考虑了钢筋的各种归并方案.采用静力弹塑性方法计算了结构的超强系数,分析了结构层数和钢筋归并系数与结构超强性能的关系.超强系数随结构层数的增加而减小,随着钢筋归并系数的增大而增大,在低层结构中归并程度对超强的影响较高层结构更为明显.目前我国抗震规范中地震作用的取值,应该考虑超强在各种因素下的变化而进行相应的修订.
According to the current China seismic design code, the design of reinforced concrete frame structure with multi-layers is adopted, and various merger schemes are considered in the design.The super-strength coefficient of the structure is calculated by static elasto-plastic method, The relationship between the consolidation coefficient and the super performance of the structure.The super coefficient decreases with the increase of the number of structural layers and increases with the increase of the merger coefficient of reinforcing steel.The influence of the degree of mergence on the super strength in the lower structure is more Is obvious.At present, the value of seismic action in China’s seismic code, we should consider the super changes in a variety of factors and make the appropriate changes.