摘要
通过以再生粗骨料取代率为变化参数(0%,25%,50%,75%和100%),进行方钢管再生混凝土试件的推出试验,研究其界面粘结作用行为。结果表明,加载端和自由端的荷载-滑移曲线相似,但加载端的初始滑移发展相对较早;荷载上升段的钢管纵向应变以负指数函数分布;下降时则呈线性分布,取代率为50%时,方钢管再生混凝土界面耗能能力为最大。
Recycled aggregate concrete-filled square steel tube short columns were pushed out to research their interface bond mechanical action with the parameter of recycled coarse aggregate replacement rate （0%,25%,50%,75% and 100%）. The results show that there were some similarities of Load-slips between loading end and free end, but the initial slip of loading end developed faster than that at the free end. Longitudinal strain of steel tube in the load rising period was expressing a negative exponential distribution, while it was a linear distribution in the load decline period.When replacement rate is 50%, the interface energy dissipation of RACFSST is the largest.
出处
《建筑技术》
北大核心
2015年第1期65-67,共3页
Architecture Technology
基金
"八桂学者"建设工程专项经费资助
广西自然科学基金项目资助(2012GXNSFAA053203)
广西科技攻关项目资助(桂科攻12118023-3)
广西理工科学实验中心重点项目资助(LGZX201102)
