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废弃玻璃细骨料钢筋混凝土柱的受压性能 预览

Compression behaviors of reinforced recycled glass fine aggregate concrete columns
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摘要 为研究废弃玻璃细骨料对混凝土柱受力性能的影响,对6个普通骨料钢筋混凝土柱和12个废弃玻璃细骨料钢筋混凝土柱进行了静力受压试验。考虑废弃玻璃细骨料取代率、长细比和偏心距3个因素,分析了不同废弃玻璃细骨料掺量对钢筋混凝土柱的破坏形态、极限承载力、轴向位移、跨中挠度、混凝土应变和钢筋应变的影响。不论是轴心受压还是偏心受压,废弃玻璃细骨料钢筋混凝土柱破坏机理均与普通钢筋混凝土柱相似。掺量100%的废弃玻璃细骨料钢筋混凝土柱的正截面承载力较高。废弃玻璃细骨料钢筋混凝土柱的正截面应变符合平截面假定,采用中国相关规范计算试件的极限承载力,并将理论值与试验值进行对比,证明可以采用现行的国家规范对废弃玻璃细骨料钢筋混凝土柱进行正截面承载力计算。研究表明,废弃玻璃细骨料可以100%替代混凝土柱中普通砂,且抗压性能可以满足使用要求。 To study the influence of added waste glass fine aggregate on the performance of concrete column,compression static loading test was carried out on 6 reinforced normal aggregate concrete columns and 12 reinforced recycled glass fine aggregate concrete columns.Considering the replacement rate of recycled glass fine aggregate,slenderness ratio and eccentricity,the influence of different replacement rate of recycled glass aggregate on the failure modes,ultimate bearing capacity,axial displacement,cross lateral deflection,concrete strain and steel strain was analyzed.It is found that under both the eccentric compression or axial compression,the failure mechanism for reinforced recycled glass fine aggregate concrete column is similar with the normal reinforced concrete column.The ultimate bearing capacity is relatively high with 100%replacement of recycled glass fine aggregate.In addition,since it conforms to theplane section assumption,the ultimate bearing capacity of the specimens can be calculated according to the relevant domestic code.The results show that the waste glass fine aggregate can replace the general use of common sand in concrete column,without any influence on the performance.
作者 王凤池 官爽 孙畅 贾世龙 Wang Fengchi , Guan Shuang , Sun Chang , Jia Shilong (School of Civil Engineering, Shenyang Jianzhu University,Shenyang 100168, P. R. China)
出处 《土木建筑与环境工程》 CSCD 北大核心 2018年第4期135-141,共7页 Journal of Chongqing Jianzhu University
基金 沈阳市科技计划(F12-173-9-00) 辽宁省科技攻关计划(2011222007) 辽宁省“百千万人才工程”项目(2015-57)
关键词 废弃玻璃细骨料 钢筋混凝土柱 极限承载力 长细比 偏心距 recycled glass fine aggregate reinforced concrete columns ultimate bearing capacity slenderness ratio eccentricity
作者简介 王凤池(1970-),男,教授,博士,主要从事抗震减灾研究,Email:cefcwang@sjzu.edu.cn。
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