建筑结构学报2017，Vol.38Issue(11)：74-81,8.DOI:10.14006/j.jzjgxb.2017.11.009
高强轻骨料混凝土框架结构抗震性能试验研究
Experimental investigation on seismic behavior of reinforced high-strength lightweight aggregate concrete frame model
摘要
Abstract
A 1∶5 scaled,two-story,two-bay reinforced high-strength lightweight aggregate concrete frame model based on a high-speed train station was tested under quasi-static cyclic loading.The seismic behavior of this frame model was fully evaluated in terms of failure mode,failure mechanism,stiffness degradation,energy dissipation capacity,displacement ductility,and etc.Test results show that the frame model designed by JGJ 12-2006 ‘Technical specification for lightweight aggregate concrete structures' meets the requirement of ‘ strong-column and weak-beam,strong-joint and weak-member'design criteria,exhibiting a mixed failure mechanism.The plastic hinge is firstly occurred at the beam end,while the column end plastic hinge forms after three plastic hinges appear in the first floor beam end.The concrete crushing at the column foot and buckling of column longitudinal bars are the evident failure characteristics of frame model.The stirrup strains in all joint are kept in elastic stage during the test.The fatter hysteretic loops of the frame model and each floor indicate excellent energy dissipation capacity of high-strength lightweight aggregate concrete frame.关键词
高强轻骨料混凝土/框架模型/拟静力试验/破坏机制/抗震性能Key words
high-strength lightweight aggregate concrete/frame model/quasi-static test/failure mechanism/seismic behavior分类
建筑与水利引用本文复制引用
吴涛,刘喜,蔡玉军,张海,孙建龙..高强轻骨料混凝土框架结构抗震性能试验研究[J].建筑结构学报,2017,38(11):74-81,8.基金项目
国家自然科学基金项目(51578072,51578077),陕西省科技统筹创新工程计划项目(2015KTZDSF03-04),陕西省自然科学基金项目(2016JM5070). （51578072,51578077）
