<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

    全部文章

    房建材料及制品

    配筋超高性能混凝土(UHPC)梁彎曲試驗研究
    配筋超高性能混凝土(UHPC)梁彎曲試驗研究
    • 高育欣,朱文凱,羅遙凌,楊 文,謝昱昊,閆欣宜
    2021年第7期
    摘要
    引用本文
    摘 ? 要:開展了2根超高性能混凝土(UHPC)梁和1根鋼筋混凝土(RC)梁的對比試驗研究,得到了3根構件的承載力-撓度曲線、裂縫開展圖和跨中截面應變圖。結果表明:UHPC梁的受力過程可分為彈性階段、裂縫開展階段、屈服階段和完全破壞階段;鋼纖維可以防止構件發生斜拉破壞;UHPC梁具有剛度大和延性大的特點;UHPC梁的開裂荷載高于RC梁,正截面承載力計算時不能忽略UHPC的抗拉強度。 Abstract: The comparative experimental study of two ultra-high performance concrete(UHPC) beams and one reinforced concrete(RC) beam was carried out, and the bearing capacity deflection curves, crack development diagrams and midspan section strain diagrams of the three members were obtained. The results show that the failure process of UHPC beam can be divided into elastic stage, crack development stage, yield stage and complete failure stage. Steel fiber can prevent the component from cable-stayed failure. UHPC beams have the advantages of high stiffness and good ductility. The cracking load of UHPC beam is higher than that of RC beam, and the tensile strength of UHPC cannot be ignored in the calculation of normal section bearing capacity.
    高育欣,朱文凱,羅遙凌,等.配筋超高性能混凝土(UHPC)梁彎曲試驗研究[J].混凝土與水泥制品,2021(7):67-70. GAO Y X,ZHU W K,LUO Y L,et al.Research on Bending Behavior of Reinforced Ultra-high Performance Concrete (UHPC) Beams[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(7):67-70.
    缺陷對灌漿套筒接頭連接性能影響的試驗研究
    缺陷對灌漿套筒接頭連接性能影響的試驗研究
    • 孟文清1,趙 凱1,劉 爽2,張亞鵬1,陳飛飛2
    2021年第7期
    摘要
    引用本文
    摘 ? 要:選用4種不同尺寸、材質的全灌漿套筒,人為設置缺陷,通過對接頭進行單向拉伸試驗,研究了缺陷對不同尺寸、材質灌漿套筒接頭強度和變形性能的影響。結果表明:內端部缺陷長度3d為接頭鋼筋拉斷和鋼筋拔出的臨界值,當缺陷長度≤3d時,接頭鋼筋被拉斷,且強度符合規范要求;無缺陷時,相同材質套筒,內徑越大,接頭對鋼筋延性的影響越??;相同尺寸套筒,鋼制灌漿套筒接頭的抗拉強度和最大拉力下的總伸長率高于球墨鑄鐵接頭;當缺陷長度為4d時,3種鋼制套筒接頭的抗拉強度和最大拉力下的總伸長率均小于球墨鑄鐵套筒接頭。? Abstract: Four kinds of full grouting sleeves from different manufacturers were selected, and the defects were artificially set, and the effects of defects on the strength and deformation performance of grouting sleeve joints of different sizes and materials were studied through uniaxial tensile tests on the joints. The results show that the length of the inner end defect 3d is the critical value of the joint reinforcement and the rebar pullout. When the defect length is less than or equal to 3d, the joint reinforcement is broken, and the strength meets the specification requirements. When there is no defect and the sleeve material is the same, the larger the inner diameter, the smaller the influence of the joint on the ductility of the steel bar. When the sleeve size is the same, the tensile strength and the total elongation under the maximum force of steel grouting sleeve joint are higher than those of the ductile iron joint. When the defect length is 4d, the tensile strength and the total elongation under maximum force of the three types of steel sleeve joints are less than those of ductile iron sleeve joints. ?
    孟文清,趙凱,劉爽,等.缺陷對灌漿套筒接頭連接性能影響的試驗研究[J].混凝土與水泥制品,2021(7):71-75. MENG W Q,ZHAO K,LIU S,et al.Experimental Research on Influence of Defects on the Connection Performance of Grouting Sleeve Joints[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(7):71-75.
    水熱合成硅酸鹽骨料及其自保溫砌塊制備
    水熱合成硅酸鹽骨料及其自保溫砌塊制備
    • 陳勝強1,2,周 祎1,李國旺1,翟祝賀1,陳紅軍1
    2021年第7期
    摘要
    引用本文
    摘 ? 要:以粒徑0.5~1.0 mm的膨脹珍珠巖作為成型核,電石渣、粉煤灰、水泥、石膏、膨脹珍珠巖細粉等為基材,經混合攪拌制成混合料。采用成球盤制作直徑為5~10 mm的球型骨料,靜置養護后送入蒸壓釜,在溫度為180 ℃、壓力為1 MPa的蒸壓養護條件下發生水熱合成反應,研制出了水熱合成硅酸鹽骨料。結果表明:利用研制出的堆積密度為715 kg/m3、筒壓強度為12.8 MPa的人造硅酸鹽骨料可以生產出各項性能滿足GB/T 15229—2011《輕集料混凝土小型空心砌塊》MU5.0級要求的自保溫砌塊。 ?
    陳勝強,周祎,李國旺,等.水熱合成硅酸鹽骨料及其自保溫砌塊制備[J].混凝土與水泥制品,2021(7):76-79. CHEN S Q,ZHOU Y,LI G W,et al.Hydrothermal Synthesis of Silicate Aggregate and Preparation of Self-insulating Blocks[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(7):76-79.
    新型裝配式拱形連梁節點抗震性能試驗研究
    新型裝配式拱形連梁節點抗震性能試驗研究
    • 王 坦,袁帥鋒,羅 坤,袁 闊,李立巍,馬先前,郝銀龍,劉 俊
    2021年第7期
    摘要
    引用本文
    摘 ? 要:在文獻調研的基礎上,提出了一種新型裝配式拱形連梁節點,并通過試驗和有限元方法分析了此種節點的抗震性能。結果表明:拱形連梁和型鋼連接件可以有效提高連梁端部的抗剪承載能力,提高聯肢墻結構的整體抗震性能。 Abstract: On the basis of literature research, a new type of assembled arch beam joint was put forward, and its seismic performance was analyzed through experiment and finite element method. The results show that the arch girder and section steel connectors can effectively improve the shear bearing capacity of the end of the girder, and improve the overall seismic performance of the joint wall structure.
    王坦,袁帥鋒,羅坤,等.新型裝配式拱形連梁節點抗震性能試驗研究[J].混凝土與水泥制品,2021(7):80-83,87. WANG T,YUAN S F,LUO K,et al.Experimental Study on Seismic Performance of New Fabricated Arch Beam Joints[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(7):80-83,87.
    上一頁
    1

    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>