等效彎矩 的英文怎麼說
中文拼音 [děngxiàowānjǔ]
等效彎矩
英文
equivalent bending moment- 等 : Ⅰ量詞1 (等級) class; grade; rank 2 (種; 類) kind; sort; type Ⅱ形容詞(程度或數量上相同) equa...
- 效 : Ⅰ名詞(效果; 功用) effect; efficiency; result Ⅱ動詞1 (仿效) imitate; follow the example of 2 ...
- 彎 : Ⅰ形容詞(彎曲) curved; bent; crooked; flexuous; tortuous Ⅱ動詞1 (使彎曲) curved; bend; flex 2 ...
- 矩 : 名詞1. (畫直角或正方形、矩形用的曲尺) carpenter's square; square2. (法度; 規則) rules; regulations 3. [物理學] moment
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Based on the research to the stability variable cross - section beam, the bending defection differential equation of the variable cross - section beam in critical state of bucking is established. according to the edge condition of the structure, the differential equation is solved and bucking equation of variable cross - section beam is created. we can get the algorithm which can be used to calculate the equivalent inertia moment of the variable cross - section lattice structure when it is regarded as constant cross - section of solid web beam
對變截面格構式構件的穩定性計算進行了初步的研究,通過建立變截面構件臨界狀態下彎曲變形的微分方程,根據變形邊界條件,得到了兩端鉸支的變截面梁失穩特徵方程,提出了幾種特殊形式的變截面格構式構件等效為等截面實腹式構件時等效慣性矩的計算方法。It shows that the method suggested in the paper is simple, applicable for engineering and has good precision. on the bases of the formulas deduced, and combining with relative test datas, it studies in the paper several factors influencing the bearing performance of the simple beams, such as shape of the external tendons, the equal moment segment length, span - to - depth ratio of the beam, valid initial prestress of the external tendons, area of the internal tension reinforcement, strength of the concrete, vertical distance between
在公式推導的基礎上,結合相關試驗資料,研究了體外筋的形狀、等彎矩區長度、梁跨高比、有效張拉預應力、體內受拉筋配筋率、混凝土強度、錨固點到樑上邊緣在垂直方向上的距離、體外預應力筋水平段長度(雙折線型體外筋的情況)以及荷載類型等對體外預應力混凝土簡支梁受力性能的影響。These geometric nonlinear behaviors such as the sag of inclined cables caused by their own dead weight, the interaction of large bending moment and axial forces in girders and towers, and the large displacement effects are considered during calculation. newton - raphson method and the displacement convergence norm are used to approach the solution iteratively
計算過程中計及了拉索的垂度效應,彎矩和軸力對主梁和主塔的組合效應以及結構的大變形效應等幾何非線性影響因素,採用newton - raphson方法和位移收斂準則進行迭代求解。For the cantilever beam, the theoretical stiffness and limited capacity are slightly less than the test ones if considering only the steel beam and the reinforced bars in the negative moment zone with the concrete in the tension zone ignored
結果表明:簡支組合扁梁,忽略彈性中和軸以下受拉的混凝土的影響,採用等效換算截面方法計算所得的剛度和極限承載力與試驗結果比較吻合;懸臂梁只考慮混凝土板中配置的負彎矩鋼筋,忽略混凝土,計算所得的剛度和極限承載力比試驗結果略微偏小,但相差不大。On the basis of relative researches in the world, according to the study status of steel - concrete composite slab, which would be widely used in modern bridge, modified equivalent inflexibility of steel - concrete composite slab was deduced by use of conversion section principle in this paper ; based in this, this paper put forwards the theory of ultimate flexural capacity of steel - concrete composite slab in consideration of slip effect, and introduces the practical simplified method for calculating flexural deformation of steel - concrete composite slab in consideration of the effect of steel studs and welded wire, and conclude that the methods in this paper is veracious and reliable, comparing with the traditional calculating mode ; morever, this paper put forwards the calculating theory and program of the effect analysis of creep and shrinkage to steel - concrete composite slab, using conversion elastic modulus principle, and testifies that the theory is right and the program is reliable and practical
本文在國內外研究成果的基礎上,針對壓型鋼板與混凝土組合板結構在現代橋梁建設中廣泛應用前景和研究現狀,利用換算截面法導出了壓型鋼板與混凝土組合板結構的修正等效慣性矩;在此基礎上,又推出了考慮壓型鋼板與混凝土之間的相對粘結滑移影響的壓型鋼板與混凝土組合板結構極限抗彎承載能力計算理論,並介紹了考慮栓釘、聯結件影響的壓型鋼板與混凝土組合板結構簡化實用撓曲變形計算公式,而且通過與傳統計算理論的分析比較,表明本文提出的計算理論公式的準確可靠性;此外,採用換算彈性模量比法著重提出了壓型鋼板與混凝土組合板結構的徐變、收縮效應分析的計算理論和程序,並通過實例分析計算證明了理論的正確性、程序的可靠性和實用性。By using the calculating method of the flat - plate floor, the bend moments of the slab in different place are calculated. the moment distribution ratio between the column trip and the middle trip of the cast - in - place reinforced concrete hollow flat - plate floor calculated by the equivalent frame method is demonstrated. the moment of the cast - in - place reinforced concrete hollow flat - plate floor calculated by the experience coefficient method is also demonstrated
進而將無梁樓蓋體系的計算方法應用於現澆空心板無梁樓蓋中,通過對板格彎矩的分析,得出了現澆空心板無梁樓蓋按等效框架法計算的板帶彎矩分配比例系數,按經驗系數法計算的板帶彎矩設計值。Out - plane stability of tapered beam - columns with hinged - hinged end
楔形變截面柱平面內穩定及平面內等效彎矩系數Steel memher beam - column
鋼壓彎構件等效彎矩系數Coefficient of equivalent bending moment of eccentrically loaded steel memher beam - column okok. org
鋼壓彎構件等效彎矩系數58Firstly the method of rayleigh - ritz and galerkin were adopted to analyze the beams under loading combined antisymmetric end moments with transverse uniformly distributed load theoretically, and the results were compared with that offered by kirby, p. a and nethercot, d. a, it showed that result was approximate and even lower and so to some extent the approach used in the paper is practice. secondly several principal factors that affect the beam stability were analyzed respectively, especially the shortening effect was mentioned scarely in some literature so far. at last, the author adopted the matlab to program the finite element software to analyze numerically, the results derived from it were agreed well with it
本文分別採用了rayleigh - ritz法和galerkin法從理論上分析了反對稱端彎矩及橫向均布載共同作用下樑的等效彎矩系數,並與kirby , p . a和nethercot , d . a分析結果進行對比,結果表明本文採用的方法得出的等效彎矩系數與其得出結果比較,在均布荷載與端彎矩比例相差不大時基本接近或偏小,說明此方法是可行的,而當均布荷載與端彎矩比例較大時,應根據均布荷載作用進行彎矩等效方法來計算。Parameter analysis, 3d nonlinear finite element program and experimental study are carried out to discuss the prestressing effects in terms of ultimate flexural strength, deflection, cracking moment, the redistribution of internal force, the stress increment of prestressed tendons, and the slip at the interface of prestressed steel - concrete composite continuous beams
本文通過參數分析、 ansys三維有限元非線性分析、模型試驗等研究方法,著重探討了抗彎承載力、撓度變形、開裂彎矩、內力重分佈、預應力筋應力增量、組合界面滑移等方面的預加力效應。Along each edge there are two edge conditions : deflection or equivalent shearing force, slope or bending moments should be equal to the given value along the edges respectively
沿每個邊有2個邊界條件:撓度(或等效剪力) 、斜度(或彎矩)應分別等於沿邊界的已給值。But this time, the authors considered more factors that can influence the precise, which include plastic resistant moment of special - shaped columns, bending stiffness of beams and cracking of walls. then, the equivalent width of diagonal strut is worked out. based on above results, the bar system model is used to calculating the internal force of the structure and the results were match the testing data basically
給出結構的簡化計算方法,本文利用砌塊墻體的斜壓桿等效原理,並考慮了異形柱的塑性抵抗矩、 0梁的抗彎能力以及馬牙搓連接等多種因素,解出了斜壓桿的等效寬度,在此基礎上按桿系模型對結構進行了簡化靜力驗算,結果與試驗基本相符。The paper concerns about the beams with consideration of residual stress under loading combined antisymmetric end moments with transverse uniformly distributed load, that formula for the linearly distributed moment used in gb50017 - 2003 should be modified for the nonlinearly distributed moment, and kirby, p. a & nethercot, d. a only suggested an empirical formula. therefore, it is of theoretical and practical value to investigate it
對于本文所研究的既有端彎矩又有橫向均布荷載作用且考慮截面殘余應力的梁,由於其沿梁長方向的彎矩是非線性分佈的,上述公式適用性有待進一步研究加以修正。而英國人kirby , p . a和nethercot , d . a .也只給出了彎矩非線性分佈梁的等效彎矩系數經驗公式。Once again, contraposing the specific case in engineering strengthening and the shortcoming in the strengthening concrete norm, the author puts forward modified means that designer should examine the internal force after esmating the prestressed tension rod sectional area and deduce the practical formula used in the examining
再次,針對加固規范和工程設計不完善的情況,提出了先估算后較核的改進辦法,並推導出較核中易用的預應力等效彎矩、軸力的計算公式。On basis of this property a new type of coherence function was proposed and a simplified method of analyzing structure ' s wind - induced response and equivalent load was proposed. wind tunnel experiments with the caarc standard tall building model was executed to verify the proposed method with the dynamic balance technique. the comparisons show the good agreement on the basis of linear mode shape assumption that is used in balance technique
按照簡化方法計算的基底傾覆彎矩功率譜、基底彎矩響應、頂部加速度和位移響應等參數均能與高頻底座天平試驗的結果較好的符合,等效設計荷載的計算結果也與按照《建築結構荷載規范》的計算結果具有一定的可比性。Geometric nonlinear behaviors in large span cable - stayed bridges have been analyzed in this paper, which include the sag of inclined cable stays caused by their own dead weight ; the interaction of large bending and axial deformation in bending members ; and the large displacements effects. then analyzing theories and researching levels of geometric nonlinear problems of modern cable - stayed bridges have summarized. and methods of modeling cable - stayed bridges for nonlinear finite element analysis have been discussed, which are the equivalent modulus of elasticity, introducing stability functions and continuously modifying geometry of structure
本文分析了大跨徑斜拉橋幾何非線性的主要影響因素,包括斜拉索的垂度效應、彎矩與軸向力組合效應和大變形效應,同時對目前斜拉橋幾何非線性問題的分析理論和研究水平進行了綜述,相應討論了各非線性影響因素的處理方法,即分別採用等效彈性模量法、引入穩定性函數和實時修正結構的幾何位置。Basing on the formula and the theory on reinforced concrete cross - section ' s eccentric compression and tension, the author programs abstract composition that examine strengthened concrete cross - section ' s stress condition by matalb software
依據導出的等效彎矩、軸力計算公式和鋼筋混凝土構件正截面偏心拉壓理論用數學軟體matlab編制了一個實用的加固梁正截面應力狀態的檢驗程序。7 ) in the prestesssed frames, direction of secondary moment of horizontal brace and secondary moment of equivalent load is sameness. horizontal brace is stronger, secondary moment of horizontal brace is bigger. 8 ) crack of column has influence on moment modulation on prestressed frames
( 7 )在預應力框架中,一般情況下,橫向約束次彎矩和等效荷載次彎矩同向,它同樣影響總次彎矩的大小,橫向約束越強,橫向約束次彎矩就越大,在次彎矩調幅中所佔的比例就越大。分享友人