可用于装配式混凝土结构耗能杆理论和试验研究
Precast concrete frames can bring tremendous benefits to a project in terms of its speed of construction,quality of finish, durability, thermal mass properties and whole life costs. But the seismic performance ofprecast concrete frames, especially with dry connections, remains a challenging issue. On the other hand, aenergy dissipating bar is a special type of brace with global buckling inhibited by an appropriate restrainingsystem, which implies a compression hysteretic behavior similar to the response exhibited under tension.Therefore, we focus on the employment of energy dissipating bars in the precast pre一stressed concreteframes. In this paper, experimental studies on a new bamboo一shaped energy dissipating bar (BED) arebeing conducted. BED specimens show stable and symmetric hysteretic behavior, whose cumulative plasticdeformation exceeds the requirements specified in the AISC. The length of the slub mainly affects the endrotation of the segment. The longer slub provides smaller end rotation, making the segment more stable.The length of the segment served as energy dissipation part should be controlled in an appropriate rangebecause too long segment can lead to the increase of local deformation of the segment and the decrease oflow-cycle behavior.
装配式混凝土结构 耗能杆 压缩滞后行为
Chun-Lin Wang Ye Liu
国内会议
日本神户
中文
1-7
2017-09-16（万方平台首次上网日期，不代表论文的发表时间）