<table id="qrkot"><ruby id="qrkot"></ruby></table>
  1. <acronym id="qrkot"></acronym>
  2. <tr id="qrkot"><s id="qrkot"></s></tr>
  3. <table id="qrkot"><option id="qrkot"></option></table>
  4. <big id="qrkot"><ruby id="qrkot"></ruby></big>
  5. <track id="qrkot"></track>
    蘇州混凝土水泥制品研究院有限公司

    頭部文案

    發布時間:2020-01-06 00:00:00
    全國建材科技期刊
    全國中文核心期刊
    中國科技論文統計源期刊
    萬方數據-數字化期刊群入網期刊
    中國學術期刊(光盤版)全文收錄期刊
    華東地區優秀科技期刊
    江蘇省期刊方陣“雙效期刊”
    中國期刊網全文收錄期刊
    中國科技期刊數據庫全文收錄期刊
    CFRP修復預制混凝土管片界面滑移試驗研究
    Experimental Study on Interface Slip Behavior of Reinforced Concrete Segments by CFRP
    2020年第12期
    CFRP;預制混凝土管片;彎剪試驗;本構關系
    CFRP; Ring segment; Bending-shearing test; Constitutive relation
    2020年第12期
    10.19761/j.1000-4637.2020.12.036.04
    國家自然基金項目(51868075);渭南市科技計劃項目(2019-ZDYF-JCYJ-129、2020-ZDYF-JCYJ-187);陜西鐵路工程職業技術學院中青年科技創新人才項目(KJRC201810) 。
    聶紅賓1,2,谷拴成2,何曉萍3,翟鑫懿1
    1.陜西鐵路工程職業技術學院 軌道工程系,陜西 渭南 714000;2.西安科技大學 建筑與土木工程學院,陜西 西安 710054;3.華設設計集團股份有限公司,江蘇 南京 210000

    聶紅賓1,2,谷拴成2,何曉萍3,翟鑫懿1

    聶紅賓,谷拴成,何曉萍,等.CFRP修復預制混凝土管片界面滑移試驗研究[J].混凝土與水泥制品,2020(12):36-39.

    NIE H B,GU S C,HE X P,et al.Experimental Study on Interface Slip Behavior of Reinforced Concrete Segments by CFRP[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(12):36-39.

    瀏覽量:
    1000
    摘 ?要:為了研究碳纖維高強復合材料(Carbon Fiber Reinforced Plastics,CFRP)在預制混凝土管片破損修復中的受力性能,以沿海某城市雙線地鐵盾構區間線路為項目依托,通過彎剪試驗研究了破損管片經過CFRP修復后的抗剪與滑移行為。試驗結果表明:隨著CFRP粘貼長度的增加,承載力提高較大,整體撓度也相應增加,剝離滑移發生在CFRP與混凝土界面;隨著層數的增加,承載力增加80%~100%,相對滑移下降60%~75%,抗剪能力提高180%;粘貼1層CFRP基本可滿足現行規范要求。 Abstract: In order to further study the mechanical properties of carbon fiber reinforced plastics (CFRP) in the repair technology of subway damaged tube segments, by relying project on the double subway shield section line in a coastal city, it was used to investigate that bending-shearing test method to study mechanical behavior of shield′s damaged segments repaired by CFRP. The results show that, in bending-shearing test, the bearing capacity of segments repaired by CFRP has a big improvement and deflection also adds and stripping damage happens at the interface of CFRP and concrete with CFRP′s length increasing. Bearing capacity is increased by 80%~100% and deflection is reduced by 60%~67% as increasing in the number of layers, it can effectively control the radial displacement. It results that it can completely meet the limitations of China′s existing norms that it pastes one layer of CFRP.
    英文名 : Experimental Study on Interface Slip Behavior of Reinforced Concrete Segments by CFRP
    刊期 : 2020年第12期
    關鍵詞 : CFRP;預制混凝土管片;彎剪試驗;本構關系
    Key words : CFRP; Ring segment; Bending-shearing test; Constitutive relation
    刊期 : 2020年第12期
    DOI : 10.19761/j.1000-4637.2020.12.036.04
    文章編號 :
    基金項目 : 國家自然基金項目(51868075);渭南市科技計劃項目(2019-ZDYF-JCYJ-129、2020-ZDYF-JCYJ-187);陜西鐵路工程職業技術學院中青年科技創新人才項目(KJRC201810) 。
    作者 : 聶紅賓1,2,谷拴成2,何曉萍3,翟鑫懿1
    單位 : 1.陜西鐵路工程職業技術學院 軌道工程系,陜西 渭南 714000;2.西安科技大學 建筑與土木工程學院,陜西 西安 710054;3.華設設計集團股份有限公司,江蘇 南京 210000

    聶紅賓1,2,谷拴成2,何曉萍3,翟鑫懿1

    聶紅賓,谷拴成,何曉萍,等.CFRP修復預制混凝土管片界面滑移試驗研究[J].混凝土與水泥制品,2020(12):36-39.

    NIE H B,GU S C,HE X P,et al.Experimental Study on Interface Slip Behavior of Reinforced Concrete Segments by CFRP[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(12):36-39.

    摘要
    參數
    結論
    參考文獻
    引用本文

    摘  要:為了研究碳纖維高強復合材料(Carbon Fiber Reinforced Plastics,CFRP)在預制混凝土管片破損修復中的受力性能,以沿海某城市雙線地鐵盾構區間線路為項目依托,通過彎剪試驗研究了破損管片經過CFRP修復后的抗剪與滑移行為。試驗結果表明:隨著CFRP粘貼長度的增加,承載力提高較大,整體撓度也相應增加,剝離滑移發生在CFRP與混凝土界面;隨著層數的增加,承載力增加80%~100%,相對滑移下降60%~75%,抗剪能力提高180%;粘貼1層CFRP基本可滿足現行規范要求。

    Abstract: In order to further study the mechanical properties of carbon fiber reinforced plastics (CFRP) in the repair technology of subway damaged tube segments, by relying project on the double subway shield section line in a coastal city, it was used to investigate that bending-shearing test method to study mechanical behavior of shield′s damaged segments repaired by CFRP. The results show that, in bending-shearing test, the bearing capacity of segments repaired by CFRP has a big improvement and deflection also adds and stripping damage happens at the interface of CFRP and concrete with CFRP′s length increasing. Bearing capacity is increased by 80%~100% and deflection is reduced by 60%~67% as increasing in the number of layers, it can effectively control the radial displacement. It results that it can completely meet the limitations of China′s existing norms that it pastes one layer of CFRP.

    掃二維碼用手機看
    未找到相應參數組,請于后臺屬性模板中添加

    (1)采用粘貼CFRP修復管片,粘貼層數相同時,隨著CFRP長度的增加,承載力提高較大, CFRP與混凝土大部分界面發生剝離破壞;CFRP粘貼長度相同,隨著層數的增加,承載力增加80%~100%,混凝土界面部分剝離破壞,CFRP層間黏結完好,未發生破壞。隨著CFRP粘貼長度的增加,極限荷載增加了270%,增長率達到700%。粘貼3層CFRP相對位移值比粘貼2層CFRP相對位移下降了60%~67%,粘貼層數能夠有效控制破損試件的相對位移。
    (2)通過相對位移可知,粘貼1層CFRP時,承載力隨著粘貼長度增加而增加,相對滑移也有一定增加,但增加不大。隨著粘貼層數的增加,承載力也有所增加,但不明顯。同時,相對位移明顯減少,且距離破損裂縫位置越近,相對位移變化越明顯,因此,在一定范圍(建議350 mm)內的地鐵管片修復中,CFRP粘貼長度比增加層數更有效。

    [1] CHEN Y M,WANG C,JEFFREY B,et al.Emergency evacuation simulation at starting connection of cross-sea bridge: Case study on Haicang Avenue Subway Station in Xiamen Rail Transit Line[J].Journal of Building Engineering,2020,29.
    [2] CAI X P,WANG Q H,LI D C,et al.Theoretical study of long elastic sleeper track to reduce vibrations induced by subway trains[J].Proceedings of the Institution of Mechanical Engineers,2020,234(5):235-239.
    [3] PENG M,CHENG X D,HE K,et al.Experimental study on ceiling smoke temperature distributions in near field of pool fires in the subway train[J].Journal of Wind Engineering and Industrial Aerodynamics,2020,199:485-490.
    [4] YU Q M,ZHOU H L,WANG Y H,et al.Quality monitoring of metro grouting behind segment using ground penetrating radar[J].Construction and Building Materials,2016,110:458-460
    [5] MARIO S,PETER M.Hybrid reinforcement design of longitudinal joints for segmental concrete linings[J].Structural Concrete,2019,20(6):1926-1940.
    [6] CONFORTI A,TRABUCCHI I,TIBERTI G,et al.Precast tunnel segments for metro tunnel lining: A hybrid reinforcement solution using macro-synthetic fibers[J].Engineering Structures,2019,199(15):109628.
    [7] 聶紅賓.CFRP布加固凍融損傷混凝土構件力學性能研究[D].沈陽:沈陽大學,2013.
    [8] YE Y,WANG Z Y.Shear behavior of large-scale concrete beams reinforced with CFRP bars and handmade strip stirrups[J].Composite Structures,2019,227.
    [9] ELAHEH I,DAVOOD M.Seismic retrofit of reinforced concrete strong beam-weak column joints using EBROG method combined with CFRP anchorage system[J].Engineering Structures,2019,194.
    [10] 聶紅賓,谷拴成,高攀科,等.寒區碳纖維增強混凝土抗凍性能試驗研究[J].混凝土與水泥制品,2020(5):46-50.
    [11] HAMED F,MOHD Y.Pull-off testing as an interfacial bond strength assessment of CFRP-concrete interface exposed to a marine environment[J].International Journal of Adhesion and Adhesives,2018,2018:335-342.
    [12] MOSTOFINEJAD D,MOFRAD M H,HOSSEINI A,et al.Investigating the effects of concrete compressive strength, CFRP thickness and groove depth on CFRP-concrete bond strength of EBROG joints[J].Construction and Building Materials,2018,189(20):323-337.
    [13] 方恩權,劉桂鳳,張雷順.CFRP-混凝土界面黏結性能試驗研究[J].建筑材料學報,2007,10(1):32-35. 
    [14] 郭永昌,宋亮輝,謝建和,等.鹽水干濕循環碳纖維復材約束混凝土軸壓試驗研究[J].工業建筑,2016,46(5):43-49.

    聶紅賓,谷拴成,何曉萍,等.CFRP修復預制混凝土管片界面滑移試驗研究[J].混凝土與水泥制品,2020(12):36-39.

    NIE H B,GU S C,HE X P,et al.Experimental Study on Interface Slip Behavior of Reinforced Concrete Segments by CFRP[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(12):36-39.

    相關文件

    暫時沒有內容信息顯示
    請先在網站后臺添加數據記錄。

    關注《混凝土與水泥制品》

    總訪問量 468,401   網站統計

    官方微信公眾號關閉
    蘇州混凝土水泥制品研究院有限公司

    關于我們    |    聯系我們    |    訂購雜志    |    回到頂部

    版權所有:中國混凝土與水泥制品網  蘇ICP備10086386號   網站建設:中企動力 蘇州

    版權所有:中國混凝土與水泥制品網

    蘇ICP備10086386號

    網站建設:中企動力 蘇州

    国产偷窥摄综合色区
      <table id="qrkot"><ruby id="qrkot"></ruby></table>
    1. <acronym id="qrkot"></acronym>
    2. <tr id="qrkot"><s id="qrkot"></s></tr>
    3. <table id="qrkot"><option id="qrkot"></option></table>
    4. <big id="qrkot"><ruby id="qrkot"></ruby></big>
    5. <track id="qrkot"></track>