摘要
为了研究压型钢板支撑加固钢筋混凝土(RC)框架的抗震性能,选取某小学教学楼进行加固前、后模型Pushover分析。分别对塑性铰分布、Pushover曲线、延性和刚度退化曲线进行对比,分析结果表明,加固后教学楼的最大承载力提高了154.18%,延性提高了4.08%,初始刚度提高了25.48%,极限刚度提高了447.48%。压型钢板支撑加固方法能显著提高教学楼的承载力和抗侧刚度,增强了教学楼的抗震能力。
A primary school building was choosen to establish the models by Pushover analysis in order to research the seismic performance of RC frames reinforced by profiled steel sheet bracing. Plastic hinge distribution,Pushover curves,ductility and rigidity degeneration curves were compared with each other by analysis. The results show that the ultimate bearing capacity of strengthened building increases by 154. 18%,the ductility by 4. 08%,initial stiffness by 25. 48%,and ultimate stiffness by 447. 48%. The strengthening method can improve the bearing capacity and lateral stiffness of the building. At the same time,the strengthening method can enhance seismic capacity of the building.
出处
《建筑结构》
CSCD
北大核心
2018年第S1期607-610,共4页
Building Structure
基金
江苏省住房和城乡建设厅科学技术计划项目(2017ZD233)
大学生创新创业训练计划项目(J2016221,2017079Z)
