混凝土跃层柱的稳定与强度研究  

Research on stability and strength of concrete skip-floor columns

作　　者：殷磊 Yin Lei(Guangzhou Residential Architecture Institute Co.,Ltd.,Guangzhou Guangdong 510630,China)

机构地区：[1]广州市住宅建筑设计院有限公司,广东广州510630

出　　处：《山西建筑》2025年第5期52-55,81,共5页Shanxi Architecture

摘　　要：针对混凝土跃层柱的稳定问题,理论分析弹性屈曲反算计算长度系数的适用范围。对比了实际荷载加载法和柱顶单位荷载法对计算长度系数的影响。针对强度问题,推导了跃层柱的屈服位移角及极限位移角,采用静力推覆研究了跃层柱结构的塑性发展规律。分析结果表明,跃层柱进行专项设计时,宜先判断其是稳定还是强度破坏;应采用实际荷载加载法进行弹性屈曲分析;同时应提高跃层柱及同层框架柱的抗震性能目标。Regarding stability issues,this article theoretically analyzes the applicability of elastic buckling analysis.The influence of the actual load loading method and the unit load method on the effective length factor was compared.In response to the issue of strength,this article uses component displacement angle of member to analyze the yield displacement angle and ultimate displacement angle of skip-floor column;and the plastic development law of the saltation column structure is studied using static pushover analysis.The analysis results show when designing the skip-floor column,it is advisable to first determine whether it is stable failure or strength failure.Elastic buckling analysis should be conducted using actual load loading methods;at the same time,the seismic performance targets for leaping columns and frame columns on the same floor should be improved.

关 键 词：混凝土跃层柱 弹性屈曲分析 构件位移角 稳定破坏 强度破坏 

分 类 号：TU375.3[建筑科学—结构工程]