建筑结构学报2025，Vol.46Issue(6)：107-117,11.DOI:10.14006/j.jzjgxb.2024.0324
钢连接装配式混凝土框架结构振动台试验研究
Shaking table test on steel-connected prefabricated concrete frame structure
摘要
Abstract
In order to explore the dynamic characteristics and actual seismic response of a novel steel-connected prefabricated concrete frame structure,a 1/5-scale three-story two-span steel-connected prefabricated concrete space frame model was designed and manufactured,and the shaking table test of the frame under different seismic intensities was carried out.The test results show that the maximum interlayer displacement angle of the model reaches 1/107 under the action of earthquake with peak acceleration of 1g,and the acceleration amplification coefficient of the model increases linearly with the number of floors.Compared with Wolong seismic wave and ChiChi seismic wave,the acceleration response and interlayer displacement response of the test model are larger under the action of El Centro earthquake with lower predominant frequency.The frame model remains elastic under the action of earthquake with peak acceleration of 1.5g,showing good deformation coordination,and only small cracks appear on the surface of the slab.The damage indexes of the structure under different damage states indicate that the overall damage of the structure increases steadily with the working conditions.The maximum decrease in the natural frequency and equivalent stiffness of the test model reaches 21.7％ and 38％,respectively.关键词
装配式混凝土框架结构/钢连接节点/振动台试验/动力响应/损伤Key words
prefabricated concrete frame structure/steel connection joint/shaking table test/dynamic response/damage分类
土木建筑引用本文复制引用
戎贤,阚义文,张健新..钢连接装配式混凝土框架结构振动台试验研究[J].建筑结构学报,2025,46(6):107-117,11.基金项目
国家自然科学基金项目(52208160),天津市自然科学重点基金项目(20JCZDJC00370),河北省自然科学基金项目(E2020202134). （52208160）
