结构工程师2017，Vol.33Issue(2)：26-33,8.
体外预应力自复位结构预应力筋布置方案优化分析
Location Optimization of Prestressed Tendons for an External Prestressed Self-centering RC Frame
摘要
Abstract
The external prestressing self-centering frame (EPSCF) introduces hinges as the beam-column joints,in which post-stressed tendons are used to provide the lateral stiffness and the restoring forces of the frame.The EPSCF's lateral stiffness formula is deduced,then the placement angle and the amount of prestressed tendons are determined.The non-linear time history analysis of the earthquake responses of EPSCF is carried out with finite element method.Acceleration response,displacement response,and internal forces of three frames with different layout schemes of prestressed tendons are compared and analyzed,which dedicates that these three frames are with almost the same acceleration and displacement responses,but obvious different internal forces in components.A reasonable layout scheme of prestressed tendons is obtained and would be used to guide the further research of EPSCF.关键词
体外预应力自复位结构/有限元分析/方案优化/动力响应/构件内力Key words
external prestressed self-centering frame/finite element method/scheme optimization/dynamic response/internal force引用本文复制引用
代桂霞,鲁亮,徐颖超..体外预应力自复位结构预应力筋布置方案优化分析[J].结构工程师,2017,33(2):26-33,8.基金项目
国家自然科学基金资助项目(51678453) （51678453）
