摘要
通过小偏心受压性能试验对比研究3根的天然骨料混凝土柱和3根同强度全再生砖混骨料混凝土柱,强度分别为C25、C30和C35.对6根柱进行加载试验,分析再生砖混骨料混凝土柱相比于同强度天然骨料混凝土柱在受力过程、破坏特征、变形能力与承载力等方面的差异.试验发现,再生砖混骨料混凝土柱在小偏心加载至破坏的过程中,具有与天然骨料混凝土柱相似的3个受力阶段,且符合平截面假定.与同强度的天然骨料混凝土柱相比,变形较大,但再生砖混骨料混凝土柱的极限承载力略高,原因可能在于两者轴心抗压强度的差异.
Three columns made with natural aggregate concrete(NAC column)and three columns made with recycled aggregate concrete containing waste concrete and bricks(RAC column)with strengths of C25,C30,C35 were designed.A small eccentric compression performance test was conducted on six columns to analyze the differences in the stress process,failure characteristics,deformability and bearing capacity between RAC columns and NAC columns of the same strength.In the process of loading to failure,the RAC column shows three stress stages similar to the NAC column,which also accords with the plane section assumption.The deformation of the RAC column is larger compared with the NAC column of the same strength.The ultimate bearing capacity of RAC column is slightly higher,which may be due to the difference in axial compressive strength.
作者
孙一李全
赵羽习
孟涛
韦华栋
张云财
SUN Yi-liquan;ZHAO Yu-xi;MENG Tao;WEI Hua-dong;ZHANG Yun-cai(College of Civil Engineering and Architecture,Zhejiang University,Hangzhou 310000,China;Zhoushan Jinke Resources Recycling Limited Company,Zhoushan 316000,China)
出处
《浙江大学学报（工学版）》
EI
CAS
CSCD
北大核心
2021年第6期1090-1099,共10页
Journal of Zhejiang University：Engineering Science
基金
浙江省重点研发计划资助项目(2020C04013)
舟山市科技计划资助项目(2019C21052).
关键词
再生骨料混凝土柱
砖骨料
全取代率
小偏心受压
受力性能
recycled aggregate concrete column
brick
total replacement rate
small eccentric compression
mechanical performance
