武 斌1,2，譚卓英2，尹 晶1，趙 爽3，齊 昆4
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方鋼管赤泥混凝土黏結滑移性能試驗研究
Experimental Research on the Bond-slip Behavior of Red Mud Concrete Filled Square Steel Tubes
2020年1期 ? No.285 ? P36-40
方鋼管赤泥混凝土；黏結滑移；赤泥替代率；黏結強度
Red mud concrete filled square steel tube; Bond-slip; Red mud replacement rate; Bond strength
2020年1期 No.285 P36-40
10.19761/j.1000-4637.2020.01.036.05
國家自然科學基金資助項目（51574015）；遼寧省自然科學基金資助項目（20170540493）；遼寧省博士科研啟動基金資助項目（20170520139）；遼寧省交通高等?？茖W校2018年度技術應用型科研資助項目（LNCCjyky201810）；遼寧省交
武 斌1,2，譚卓英2，尹 晶1，趙 爽3，齊 昆4
1.遼寧省交通高等?？茖W校建筑工程系，沈陽 110122；2.北京科技大學土木與資源工程學院，100083；3.中國建筑東北設計研究院有限公司，沈陽 110000；4.國網沈陽供電公司，110000
張國良,李晨,張煜,等.早強降黏型復合摻合料對盾構管片混凝土性能的影響[J].混凝土與水泥制品,2020(1):29-32.
ZHANG G L,LI C,ZHANG Y,et al.Effect of Composite Admixture with Early Strength and Viscosity-Reducing Function on the Concrete of Shield Tunnel Segment[J].China Concrete and Cement Products,2020(1):29-32.
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1000
方鋼管赤泥混凝土黏結滑移性能試驗研究
Abstract: Fifteen red mud concrete filled square steel tubes short column specimens were designed for the push-out test, and the load-slip curves of red mud concrete filled square steel tubes were obtained, and the effects of the replacement rate of red mud mass, concrete strength, length diameter ratio(embedment length), width to thickness ratio on the bond slip behavior of the steel stubs were studied. The results show that the load slip curves of red mud concrete filled square steel tubes can be classified into five stages: no slipping, ascending, descending, reascending and redescending. The bond ultimate load increases first and then decreases with the increase of red mud substitution rate. When the substitution rate of red mud is 5%, the bond ultimate load reaches the maximum. When the substitution rate of red mud is 20%, the bond ultimate load is equivalent to that of normal concrete filled steel tube. The bond ultimate load increases with the increase of the concrete strength and the length-diameter ratio, and decreases with the increase of the width-thickness ratio.
英文名 :
Experimental Research on the Bond-slip Behavior of Red Mud Concrete Filled Square Steel Tubes
刊期 :
2020年1期 ? No.285 ? P36-40
關鍵詞 :
方鋼管赤泥混凝土；黏結滑移；赤泥替代率；黏結強度
Key words :
Red mud concrete filled square steel tube; Bond-slip; Red mud replacement rate; Bond strength
刊期 :
2020年1期 No.285 P36-40
DOI :
10.19761/j.1000-4637.2020.01.036.05
文章編號 :
基金項目 :
國家自然科學基金資助項目（51574015）；遼寧省自然科學基金資助項目（20170540493）；遼寧省博士科研啟動基金資助項目（20170520139）；遼寧省交通高等?？茖W校2018年度技術應用型科研資助項目（LNCCjyky201810）；遼寧省交
作者 :
武 斌1,2，譚卓英2，尹 晶1，趙 爽3，齊 昆4
單位 :
1.遼寧省交通高等?？茖W校建筑工程系，沈陽 110122；2.北京科技大學土木與資源工程學院，100083；3.中國建筑東北設計研究院有限公司，沈陽 110000；4.國網沈陽供電公司，110000
武 斌1,2，譚卓英2，尹 晶1，趙 爽3，齊 昆4
張國良,李晨,張煜,等.早強降黏型復合摻合料對盾構管片混凝土性能的影響[J].混凝土與水泥制品,2020(1):29-32.
ZHANG G L,LI C,ZHANG Y,et al.Effect of Composite Admixture with Early Strength and Viscosity-Reducing Function on the Concrete of Shield Tunnel Segment[J].China Concrete and Cement Products,2020(1):29-32.
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結論
參考文獻
引用本文
摘要：制作了15個方鋼管赤泥混凝土短柱試件進行推出試驗，獲得了方鋼管赤泥混凝土的荷載-滑移曲線，研究了赤泥替代率、混凝土強度、長徑比（埋置長度）、寬厚比對方鋼管赤泥混凝土黏結滑移性能的影響。研究結果表明，方鋼管赤泥混凝土荷載-滑移曲線經歷了5個階段，即無滑移段、上升段、下降段、二次上升段、二次下降段。黏結極限荷載隨赤泥替代率的提高先增加后降低，赤泥替代率為5%時，黏結極限荷載達到最大；赤泥替代率為20%時，黏結極限荷載與標準鋼管混凝土相當。黏結極限荷載隨混凝土強度及長徑比的增加而增加；隨寬厚比的增加而減小。
Abstract: Fifteen red mud concrete filled square steel tubes short column specimens were designed for the push-out test, and the load-slip curves of red mud concrete filled square steel tubes were obtained, and the effects of the replacement rate of red mud mass, concrete strength, length diameter ratio(embedment length), width to thickness ratio on the bond slip behavior of the steel stubs were studied. The results show that the load slip curves of red mud concrete filled square steel tubes can be classified into five stages: no slipping, ascending, descending, reascending and redescending. The bond ultimate load increases first and then decreases with the increase of red mud substitution rate. When the substitution rate of red mud is 5%, the bond ultimate load reaches the maximum. When the substitution rate of red mud is 20%, the bond ultimate load is equivalent to that of normal concrete filled steel tube. The bond ultimate load increases with the increase of the concrete strength and the length-diameter ratio, and decreases with the increase of the width-thickness ratio.
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