鋼的屈服點 的英文怎麼說
中文拼音 [gāngdeqūbìdiǎn]
鋼的屈服點
英文
yield of steel-
Based on the analysis of mechanism for joint region, the " frame - wall " and " aslope compression stub column " mechanical models and yielding patterns of core zone of the joints are set up. the shear load - carrying formulation for joint core zone is also given in terms of plastic ultimate analysis. and then, the comparisons between the formulas given in this paper and that of chinese design code ( draft ) and nonlinear fem as well are presented
對節點核心區的抗剪,通過受力機理的分析,建立了鋼「框架剪力墻」加混凝土「斜壓短受力體系及其屈服機制,根據塑性極限分析,給出了節點核心區抗剪承載力計算的迭加公式, 《規程》公式和非線性有限元近似模擬分析結果進行了比較。Based on the pseudo - static experimental results of nine abnormal joints, the damage process of abnormal joint is divided into four stages of original crack, entire crack, ultimate state and failure, the effect of axial force ratio, stirrup ratio and height of column section on seismic behavior of abnormal joint are discussed, the conclusion that anti - shear capacity of abnormal joint are studied in entire crack state by studying the minor core of abnormal joint is made, the calculating formula for anti - shear capacity of abnormal joint is proposed with a view to asymmetry in stirrup yield
摘要根據9個鋼筋混凝土框架異型節點試件的擬靜力試驗結果,指出異型節點受力過程分為初裂、通裂、極限和破壞4個階段;討論了軸壓比、節點核芯配箍率、柱截面高度變化對異型節點抗剪性能的影響;提出應考慮節點核芯區箍筋屈服的不均勻性並在通裂狀態下以「小核芯」為分析單元來研究此類節點抗剪承載力的建議;最終給出了異型節點抗剪承載力的計算公式。It is common considered that the more the half width is high, the more its hardness is based on the fact that the half high width of the shot peening affected layer in hard state decreases many scholars engaged in investigation of shot peening technology proposed that the shot peening affected layer is work softened
許多從事噴丸研究的學者從硬狀態材料噴丸影響層半高寬減小的實驗事實提出噴丸影響層發生了「加工軟化」的觀點,實驗選用超高強度鋼為實驗材料,對其不同硬度的實驗結果發現,噴丸使硬狀態表面的半高寬大幅度減小,但使它們的表面屈服強度得到了提高。After pretorsion the successor tensile yield limit and strength limit both improved very highly, but the trend of the increase of the strength limit was suspended till the pretorsional capacity reached 17, when the pretorsional capacity was greater than17 ( prestrain value was 81. 19 % of total strain ), the successor strength limit rapid failed and approached the yield limit. this illustrate the a3 steel specimen translate from plasticity into friability after pretorsion strengthen. when the specimen was operated by tension - torsion action, the yield limit had very large improved, but the strength limit changed very little. furthermore, the trend of the increase of the strength limit was suspended till the pretension capacity reached 0. 25 ( prestrain value was 66. 93 % of total strain )
A3鋼試件在預扭轉后,后繼拉伸屈服極限和強度極限均有很大提高,但強度極限的增大趨勢到預扭轉量為17為止,預扭轉量大於17 (預應變值為總應變的81 . 19 )后強度極限迅速下降,與其屈服極限接近,這說明a3鋼試件經預扭轉強化后逐漸由塑性轉化為脆性。該預應變值為a3鋼試件的韌脆轉變點。 a3鋼試件在拉伸-扭轉作用下,屈服極限有很大提高,但強度極限沒有多大改變,而且,屈服極限的增大趨勢到預拉伸量為0 . 25應變(預應變量為總應變量的66 . 93 )后就不再增加。Through comparing and analyzing of bearing capacity, development of crack and strain of reinforced, the results show that the load - deflection plots f or specimens from the finite element analysis agree well with the experimental data, and choosing the rightful stress - strain relationship, utilizing ansys program, the test process can be well simulated. at the same time, making used of the program, the traditional shear wall is analyzed. it shows that comparing with the traditional shear wall, the hollow shear wall ' s cracking load drop 16 %, yield load and failure load drop 13 %, stiffness drop 13 % ~ 22 %
其次在試驗的基礎上,將試驗手段、有限元數值模擬方法和理論分析結合起來,利用有限元程序ansys對其中的兩片墻板進行非線性有限元分析,並對前後的承載性能,裂縫發展、鋼筋應變進行了比較和分析,結果表明有限元節點模型分析的荷載-位移曲線和試驗測得數據符合良好,選用合理的材料本構模型,利用ansys可以較好的模擬試驗過程;同時利用有限元模型對比分析了普通剪力墻和空心剪力墻,空心剪力墻與普通剪力墻對比,其開裂荷載下降16 ,屈服荷載、極限荷載下降13 ,剛度下降13 22 ,開裂至屈服、屈服至極限荷載階段的剛度衰減規律與普通剪力墻基本一致,空心剪力墻的後期剛度比較穩定。Yield of steel
鋼的屈服點But several earthquake has proved than it is of poor ductility and is brittle destroyed easily. but semi - rigid connections, which is formed by high strength bolts and connecting components, for example angle, end - plate and shape t steel, have an excellent energy dissipating mechanism to resist earthquake loads and prove more capacity for yielding and ductility
而主要通過高強螺栓與連接件(角鋼、端板以及t型鋼等)把梁與柱連接起來的半剛性節點連接具有較強的耗能能力去抵抗一部分地震荷載,它能提供更多的屈服容量和延性容量,同時可節省節點的用鋼量,這使得半剛性連接成為一種既經濟又可靠的連接方式。For the obvious yield point of angle steel, the critical frictional resistance could be regarded as ultimate pullout capacity
對具有明顯屈服點的鋼材,在實際施工中,可以把摩阻臨界值作為極限拉力。Although cold - formed rectangular tube - steel column is favorable to industrialization of mass production, the cold forming process increase the yield point and tensile strength, at the same time the cold forming process decrease the ductile behavior, so it ’ s necessary to research the seismic behavior of cold - formed rectangular tube - steel column for architecture structure
冷彎矩形鋼管雖然可以實現大批量工廠化生產,但冷彎矩形鋼管在冷成型過程提高了材料的屈服點和抗拉強度同時降低了延性,因而冷彎矩形鋼管作為柱材在建築結構抗震中的應用有待進一步研究。In the theoretical analysis, this paper used the limiting analysis method and the yielding system of the joint region given by the " technical code for concrete - filled square tubular structure " ( draft ). the mathematical formulas for determining joint shearing capacity and bending capacity were developed in this paper and also verified the analyzing result with experimental data
在理論分析中,採用極限分析方法,利用《矩形鋼管混凝土結構技術規程》 (徵求意見稿)中提供的節點域屈服機制,運用虛功原理和平衡原理推導出了節點域的抗剪、抗彎承載力計算公式,並以試驗數據加以驗證。Which adopt plastic analysis method, and take for reinforcement damage as failure criterion
本文公式採用塑性分析方法,以縱向鋼筋屈服破壞為節點破壞的準則。分享友人