纖維小梁 的英文怎麼說
中文拼音 [xiānwéixiǎoliáng]
纖維小梁
英文
fibrous trabecula-
Fatigue tests were carried out for 70 small - scale beams ( 55 lsfrc beams and 15 plain concrete beams ). the evolvement of fatigue strain and damage with cycles was discussed and the influence of steel fibers and the stress level on the fatigue strain and damage was analyzed
通過70根（層布式鋼纖維路面55根，素混凝土15根）試驗小梁的等幅彎曲疲勞試驗，得出了層布式鋼纖維路面混凝土的疲勞變形和損傷特徵，並分析了鋼纖維和應力水平對疲勞變形和損傷的影響。So the concrete beams reinforced with frps not only increase the flexural strength but also increase the stiffness and decrease it ' s max deflection, which is very important to increase the ability of resisting reflex of the original beams and the strength of the normal use limit status
因此，纖維加固混凝土構件不僅提高了其抗彎承載力，而且提高了其剛度，減小了最大撓度，這對于增加原梁抵抗變形的能力、提高正常使用極限狀態的承載能力具有十分重要的意義。The corticosteroid dexamethasone increases glycosaminoglycan, elastin, and fibronectin production in cultured trabecular meshwork ; the glycosaminoglycan deposition increases further with prolonged steroid exposure [ 33, 34 ]
地塞米松可以引起培養的小梁細胞分泌葡萄糖胺聚糖、彈力蛋白和纖維連接蛋白的增加；葡萄糖胺聚糖的沉積會隨著地塞米松作用時間的延長而增加[ 33 ， 34 ] 。Through the experimental and theoretical analyzing results, the conclusion can be summarized as follows. 1 ) the yielding load and ultimate bearing capacity of the beam are not affected by the value of the load under that load the cfrp sheets were retrofitted, but the value will affect the stiffness of the beam, especially the average tangent stiffness after rebar yielding. 2 ) the stiffness of cracked beams retrofitted with cfrp sheets is larger than that of the normal rc beams
通過試驗結果分析發現，採用cfrp加固的鋼筋混凝土梁的剛度較普通鋼筋混凝土梁的剛度有明顯提高，纖維布對承受以抗彎為主的構件具有增強剛度、控制撓度的作用；纖維加固時梁所承受的荷載大小，即加固時梁內已存在的彎曲裂縫的寬度對梁的屈服荷載及極限承載力影響不是很大，但對梁的剛度有較大影響，特別是對縱筋屈服后的剛度影響較大。Experimental results indicated that the polypropylene fiber can improve the workability of concrete availably, and can increase the presentation quality of structures with the voids and pits decreased ; the cracks of beam are controlled effectively, the width and length of crack decreased, the dispersibility of crack in beam face improved, and the ductility of beam increased ; and the cracking load of reinforced concrete beam is increased, the amplify up to about 30 %, simultaneity the ultimate bear capacity increased
試驗研究表明，使用聚丙烯纖維后，能有效改善新拌混凝土的和易性，並能增強混凝土構件的外觀質量，減少構件表面蜂窩、麻面、氣孔、細小裂紋等；同時，在破壞試驗過程中發現梁的裂縫能得到有效控制，裂縫寬度減小，裂縫的發展高度降低，裂縫的條數增加，提高了梁截面的裂縫分散能力，增強了梁中混凝土的韌性；提高了鋼筋混凝土梁的開裂荷載，幅度可達30左右，增強了結構的延性，提高了結構的抗裂性能和屈服荷載。When the diatance is too much, failure mode is brittle. the calculated flexural capacity has good agreement with the test risult
當加固距離較大時，梁雖然有很好的承載力，但是撓度太小，破壞形式為纖維筋拉斷的突然破壞。From the experiments, the number and width of fracture are obviously decreased, and pasting cfrp laminates play important role in improving rc construction durability ; with anchoring, premature is prevented and the ultimate shear capacity is increased ; taking properly anchoring measure, the ultimate shear capacity of rc t - section beams of initial loads is higher than that of no initial loads ; under non - anchoring case, because the rehabilitation of rc t - section beams with cfrp laminates are destroyed suddenly, the reinforcement effect maybe decrease
試驗結果表明，粘貼碳纖維布顯著減小了鋼筋混凝土t梁的裂縫數量和寬度，抑制了裂縫的開展，對提高普通鋼筋混凝土構件耐久性有重要作用；採用適當的錨固措施可以有效防止構件發生早期破壞，提高構件的極限抗剪能力；對于有錨固的粘貼方式，有預加載的t梁抗剪極限承載力明顯高於無預加載的t梁。試驗還表明，在無錨固的情況下，用碳纖維布作抗剪加固后的t梁破壞較突然，有可能使梁的加固效果出現負效應。This paper investigates 15 r. c. beams under different conditions of cfrp amount, anchor condition and load history. the experiment results show that the flexural strength, stiffness and cracking behavior of rc beams can be improved. a failure mode caused by epoxy - concrete interface bond abating is observed and analyzed in this paper
本文進行了15根鋼筋混凝土適筋梁在不同碳纖維粘貼量、錨固方式和加載歷史條件下的試驗，試驗結果表明，粘貼碳纖維加固後梁的正截面承載力提高，裂縫寬度減小，抗彎剛度有所增強；在試驗中觀察到了膠層?混凝土界面粘結失效導致的試件破壞形式。分享友人