无地下室多层框架结构计算模型对比分析

Comparison and analysis of calculation models for multi-story frame structures without basement

通过对某工程实例采用不同计算模型对比计算,分析拉梁及嵌固部位对无地下室多层框架结构整体指标与构件配筋的影响。结果表明:拉梁及嵌固部位对首层的整体指标和配筋影响较大,对2层及以上影响可忽略不计;采用无拉梁模型并将计算嵌固部位选在地面下0.5 m时,其配筋结果能更好地体现“强柱弱梁”的抗震设计理念。

By comparing and calculating with different calculation models for an engineering example,the influence of the tie beams and the embedded position on the overall index and component reinforcement of multi-story frame structure without basement is analyzed.The results show that the tie beams and embedded parts have a greater impact on the overall indicators and reinforcement of the first floor,and the impact on the second floor and above is negligible.When the non-tensioned beam model is used and the calculated embedded part is 0.5 meters below the ground,its reinforcement result can better reflect the seismic design concept of“strong column and weak beam”.