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    蘇州混凝土水泥制品研究院有限公司

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    發布時間:2020-01-06 00:00:00
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    水泥混凝土制品

    內襯HDPE片材大口徑鋼筋混凝土排水管檢測試驗初探
    內襯HDPE片材大口徑鋼筋混凝土排水管檢測試驗初探
    • 呂根喜1,高 武2,毛海明3,江曉華3,章擁軍3
    2021年第2期
    摘要
    引用本文
    摘 ? 要:基于工程實際要求,對內襯高密度聚乙烯(HDPE)片材化學物理性能及內襯HDPE片材鋼筋混凝土管節進行了試驗研究,包括內襯HDPE單鍵和多鍵的抗拉拔試驗、管節接頭抗內水壓和外水壓試驗、HDPE片材覆貼接頭抗外水壓試驗、外壓荷載試驗, 可為HDPE片材在鋼筋混凝土排水管中的應用和推廣提供參考。 Abstract: Based on the actual requirements of project, ?the chemical and physical properties tests of HDPE sheets and pipe section tests of large diameter HDPE lining reinforced concrete sewer pipes are carried out, including single and multiple bond pull-out tests of HDPE lining, internal and external water pressure tests of pipe joints, external water pressure test of concrete sewer pipe joint with HDPE sheet, interface and external pressure load tests, which can provide a reference for the application and promotion of HDPE sheet in the corrosion resistance of reinforced concrete sewer pipe.
    呂根喜,高武,毛海明,等.內襯HDPE片材大口徑鋼筋混凝土排水管檢測試驗初探[J].混凝土與水泥制品,2021(2):37-43. LYU G?X,GAO W,MAO H?M,et?al.Tests of Large Diameter HDPE Lining Reinforced Concrete Sewer Pipes[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(2):37-43.
    PHC管樁抱箍式機械連接軸拉承載性能數值分析
    PHC管樁抱箍式機械連接軸拉承載性能數值分析
    • 安增軍1,2,賀武斌3,劉佳龍4,戴 亞1,2
    2021年第2期
    摘要
    引用本文
    摘 ?要:基于ABAQUS有限元軟件,模擬分析了PHC管樁抱箍式機械連接軸拉承載性能。結果表明:抱箍式機械連接的零部件均可滿足PHC管樁樁身軸拉設計值要求;抱箍式機械連接軸拉力傳力路線不直接,位移變形相對大;零部件應力分布相對不均勻,六角高強螺釘與U型抱箍卡之間存在先后屈服的現象。建議將U型抱箍卡上的六角高強螺釘孔設置為橢圓孔,預留一定的滑動空間,避免螺釘發生材料屈服現象。 Abstract: Based on ABAQUS, the axial tension bearing capacity of hoop type mechanical connection of PHC pile is analyzed by finite element method. The results show that the mechanical parts of hoop type connection joint can meet the bearing requirements of PHC piles axial tension design value; the tension transmission route of hoop type mechanical connection shaft is not direct, and the displacement deformation is relatively large; the stress distribution of parts is relatively uneven, and there is the phenomenon of yielding successively between hexagon high strength screw and U-shaped hoop clamp. It is suggested that the hexagon high-strength screw hole on the U-type hoop should be set as an ellipse hole, and a certain sliding space should be reserved to avoid the material yield phenomenon of the screw.
    安增軍,賀武斌,劉佳龍,等.PHC管樁抱箍式機械連接軸拉承載性能數值分析[J].混凝土與水泥制品,2021(2):44-48. AN Z J,HE W B,LIU J L,et al.Numerical Analysis of Axial Tension Bearing Capacity of Hoop Type Mechanical Connection of PHC Piles[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(2):44-48.
    大跨度先張法預應力混凝土雙T板的生產
    大跨度先張法預應力混凝土雙T板的生產
    • 劉洋,高名揚,任端城,袁繼東,王靖鑫
    2021年第2期
    摘要
    引用本文
    摘 ? 要:大跨度先張法預應力混凝土雙T板具有跨度大、結構性能好、成本低、整體性好等特點,被廣泛應用于工業建筑。結合實際工程,介紹了大跨度雙T板的生產工藝,并重點闡述了鋼絞線張拉、預應力控制、混凝土澆筑和養護工藝,可為大跨度雙T板的生產應用提供參考。 Abstract: Large-span pre-tensioned prestressed concrete double-T slabs have the advantages of large span, good structural performance, low cost, good integrity and are widely used in the industrial buildings. Combined with the practical engineering, the production technology of the double-T slab is introduced, and the steel strand tension, prestress control, concrete pouring and maintenance technology are described in detail, which can provide a reference for the production and application of long-span double-T slabs.
    劉洋,高名揚,任端城,等.大跨度先張法預應力混凝土雙T板的生產[J].混凝土與水泥制品,2021(2):49-50,60. LIU Y,GAO M Y,REN D C,et al.Manufacture of Large-span Pre-tensioned Prestressed Concrete Double-T Slabs[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(2):49-50,60.
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