腐蚀与荷载耦合作用下混凝土柱徐变机理研究

LIAO Shijie,CAO Guohui, WANG Libin,XIAO Yonggang

wf(2023)

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Abstract
为了研究腐蚀与荷载耦合作用下钢筋混凝土柱的徐变行为,分别对轴压、小偏压和大偏压3种受力状态的钢筋混凝土柱进行了腐蚀与荷载共同作用下的长期性能试验,并结合试验提出了不同钢筋锈蚀状况下的理论徐变修正模型.研究结果表明:钢筋混凝土柱在相同受力状态下,当钢筋轻度腐蚀时的混凝土徐变略低于未锈蚀试件;当钢筋为重度腐蚀时,相较于未锈蚀试件,混凝土徐变出现了较大增长;经验证,实测值与模型理论值吻合较好.
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Key words
reinforced concrete column,uneven corrosion of steel bar,creep,method of correction coefficient
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