东南大学学报（自然科学版）2017，Vol.47Issue(4)：760-765,6.DOI:10.3969/j.issn.1001-0505.2017.04.021
钢绞线锚入式预制装配混凝土框架节点抗震试验研究
Seismic experimental study on strands anchoredprecast concrete frame connections
摘要
Abstract
In order to study the seismic performance of precast concrete connections of anchored prestressing strands in frame, the low-cycle reversed loading test was conducted on eight full-scale precast connections and one cast-in-place connection.The failure mechanism, hysteretic behavior, stiffness degradation and energy dissipation capacity of the precast connections were discussed.The experimental results show that additional reinforcement arranged in the core region can effectively enhance the bearing capacity and deformation capacity of the connections, while the plastic hinge of the beam can also be moved toward outside.In pre-loading, the hysteresis loop area of precast connections is smaller than that of cast-in-place connection, but as the loading continued to be applied, the hysteresis loop area of precast connections is almost equal to that of cast-in-place connection.It can be concluded that the energy dissipation capacity of precast connections is poorer than that of cast-in-place connection in the preliminary stage, however, the energy consumption is equal to or even more than the cast-in-place connection in the later stage.Through the comparison of the above seismic performance, it is found that the precast concrete connection of anchored prestressing strands in the frame can satisfy the requirements of the seismic code.关键词
预制装配/低周反复荷载试验/滞回性能/耗能能力/抗震性能Key words
precast assembly/low-cycle reversed loading test/hysteresis performance/dissipation capacity/seismic performance分类
建筑与水利引用本文复制引用
于建兵,郭正兴..钢绞线锚入式预制装配混凝土框架节点抗震试验研究[J].东南大学学报（自然科学版）,2017,47(4):760-765,6.基金项目
国家重点研发计划资助项目(2016YFC0701703). （2016YFC0701703）
