<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

    橡膠改性泡沫混凝土的物理力學性能及耐高溫性能研究
    橡膠改性泡沫混凝土的物理力學性能及耐高溫性能研究
    • 盧軍燕1,常 帥2
    2021年第11期
    摘要
    引用本文
    摘 ? 要:利用廢舊輪胎破碎后的橡膠顆粒替代部分河砂制備了泡沫混凝土,研究了橡膠顆粒摻量、水灰比對混凝土的密度、流動性、抗壓強度、劈裂抗拉強度、彈性模量和耐高溫性能的影響。結果表明:橡膠顆粒的摻入降低了混凝土的密度、坍落度、抗壓強度和彈性模量,但當橡膠顆粒摻量為20%時,試件的抗壓強度仍高于10 MPa;試件的劈裂抗拉強度隨著橡膠顆粒摻量的增加呈先增后減的趨勢,且當橡膠顆粒摻量為20%時強度達到最大;高溫對試件的抗壓強度不利,與常溫相比,經過100 ℃、200 ℃高溫處理后,試件的抗壓強度分別降低了3.1%~33.0%、25.0%~55.0%。 Abstract: The foamed concrete was prepared by replacing part of river sand with the crushed rubber particles of waste tires. The effects of rubber particle content and water-cement ratio on the density, fluidity, compressive strength, splitting tensile strength, elastic modulus and high temperature resistance of concrete were studied. The results show that the addition of rubber particle reduces the density, slump, compressive strength and elastic modulus of the concrete, but when the rubber particle content is 20%, the compressive strength of the specimen is still higher than 10 MPa. The splitting tensile strength of the specimen first increases and then decreases with the increase of rubber particle content, and reaches the maximum when the rubber particle content is 20%. High temperature is unfavorable to the compressive strength of the specimen. Compared with normal temperature, the compressive strength of the specimen is reduced by 3.1%~33.0% and 25.0%~55.0% after high temperature treatment at 100 ℃ and 200 ℃.
    預應力平面桁架鋼筋混凝土疊合板底板性能分析
    預應力平面桁架鋼筋混凝土疊合板底板性能分析
    • 徐 帥1,2,孟凡林1,2,李世禹1,梁 媛1
    2021年第11期
    摘要
    引用本文
    摘 ? 要:針對長3.9 m、寬2.5 m的預應力平面桁架鋼筋混凝土疊合板底板以及常規鋼筋桁架混凝土疊合板底板的受力性能進行了數值模擬,分析了兩種疊合板底板在承載力和變形方面的差別。結果表明:預應力平面桁架鋼筋混凝土疊合板底板具有很好的承載性能,其充分利用了桁架鋼筋腹桿對疊合板受力貢獻小的特點,在減少一半腹桿用量的條件下可以發揮與常規鋼筋桁架混凝土疊合板底板相近的抗彎性能,在減輕自重的同時,體現出良好的經濟性。 Abstract: Numerical simulations were carried out on the mechanical performance of the concrete composite bottom slab with prestressed plane steel bar trusses with the length of 3.9 m and the width of 2.5 m, as well as the conventional concrete composite bottom slab with steel bar trusses, and the differences in the bearing capacity and deformation of the two types of concrete composite bottom slab were analyzed. The results show that the concrete composite bottom slab with prestressed plane steel bar trusses has good load-bearing performance, and it makes full use of the feature that the web bar has little influence on the bending performance of the slab, and it can provide the bending performance similar with the conventional concrete composite bottom slab with steel bar trusses under the condition of reducing the half number of webs, which reduces its own weight and reflects good economic efficiency.
    徐帥,孟凡林,李世禹,等.預應力平面桁架鋼筋混凝土疊合板底板性能分析[J].混凝土與水泥制品,2021(11):73-76. XU S,MENG F L,LI S Y,et al.Performance Analysis of Concrete Composite Bottom Slab with Prestressed Plane Steel Bar Trusses[J].China Concrete and Cement Products,2021(11):73-76.
    鋼筋混凝土框架結構與框架薄殼結構的抗震 性能和CO2排放研究
    鋼筋混凝土框架結構與框架薄殼結構的抗震 性能和CO2排放研究
    • 楊小衛1,王浩民2
    2021年第11期
    摘要
    引用本文
    摘 ? 要:為了實現抗震性能好且材料節能的結構體系,針對多層辦公樓案例,按照我國相關規范設計成鋼筋混凝土框架結構和框架薄殼結構,通過彈塑性動力時程分析比較了兩種結構體系的抗震性能、材料用量和CO2排放量。結果表明:兩種結構體系都能滿足“三水準”抗震設防目標;框架結構的最大樓層位移和最大層間位移角比框架薄殼結構大,罕遇地震下框架結構的損傷比框架薄殼結構嚴重;框架薄殼結構的混凝土、鋼筋用量和CO2排放量相比框架結構分別減少了 1 167.7 t、35.1 t和220 t;框架薄殼結構的抗震性能和節能減排性能明顯優于框架結構。 Abstract: In order to achieve a structural system with good seismic performance and materials saving, for the case of a multi-storey office building, a reinforced concrete frame structure and a frame shell structure were designed in accordance with Chinese relevant codes. The seismic performance, material consumption and CO2 emission of the two structural systems were compared through elasticplastic dynamic time history analysis. The results show that the two structural systems can meet the "three-level" seismic fortification goal. The maximum floor displacement and maximum interstory displacement angle of the frame structure are larger than those of the frame shell structure, and the damage of frame structure under rare earthquake is more serious than that of frame shell structure. Compared with the frame structure, the amount of concrete, steel bars and CO2 emission of the frame shell structure are reduced by 1 167.7 t, 35.1 t and 220 t respectively. The seismic performance, energy saving and emission reduction performance of frame shell structure are obviously better than those of frame structure.
    楊小衛,王浩民.鋼筋混凝土框架結構與框架薄殼結構的抗震性能和CO2排放研究[J].混凝土與水泥制品,2021(11):68-72. YANG X W,WANG H M.Research on Seismic Performance and CO2 Emissions of Reinforced Concrete Frame Structure and Frame Shell Structure[J].China Concrete and Cement Products,2021(11):68-72.
    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>