预应力筋应力释放度对自控耗能UPPC框架出铰顺序的影响研究  

Effect of Stress Release of Tendons on the Hinge Sequence of Self-adapting Energy Dissipation UPPC Frame

作　　者：夏坤 王璐 蔡崇煌 李延和[1] XIA Kun;WANG Lu;CAI Chong-huang;LI Yan-he(College of Civil Engineering,Nanjing Tech University,Nanjing Jiangsu 211816 China;Jiangsu Yuanhan Architectural Design Co.,Ltd,Nanjing Jiangsu 210005 China)

机构地区：[1]南京工业大学土木工程学院,江苏南京211816 [2]江苏远瀚建筑设计有限公司,江苏南京210005

出　　处：《江苏建筑》2021年第S01期11-14,共4页Jiangsu Construction

摘　　要：自控耗能UPPC框架结构体系在罕遇地震作用下,依靠框架梁中设置的小型自控元件来实现释放框架梁中预应力筋的应力,使得框架梁梁端强度不超强,易于形成梁铰侧移机制。文章采用有限元软件对框架进行弹塑性静力分析(Pushover),对预应力筋的应力值及释放度进行研究,并对UPPC框架的出铰顺序进行分析,使得框架结构在罕遇地震作用下拥有良好的耗能机制。Under the rare earthquake action,UPPC frame structure system relies on the small automatic control components set in the frame beam to release the stress of the prestressed tendons in the frame beam,so that the beam end strength of the frame beam is not super strong,and it is easy to form the hinge side movement mechanism of the beam.In this paper,the elastoplastic static analysis(Pushover)of the frame is carried out by finite element software,the stress value and release degree of the prestressed tendons are studied,and the hinge release sequence of the UPPC frame is analyzed,so that the frame structure has a good energy dissipation mechanism under the action of rare earthquakes.

关 键 词：UPPC框架 自控耗能 弹塑性静力分析 

分 类 号：TU398.2[建筑科学—结构工程]