正彎形剪 的英文怎麼說
中文拼音 [zhēngwānxíngjiǎn]
正彎形剪
英文
curved on flat scissors-
Abstract : it presents the law of “ the reverse is positive ” on how to evaluate the unknown force of statically determinate structure, the movement law of force vector for drawing the axial force diagram and shear diagram. and expounds the simple and convenient method of drawing the moment diagram according to the rubber band deformation, and the auxiliary teaching software corresponding to the above - mentioned methods. the methods are believed to save class hour and gain a better effect on teaching
文摘:闡述了求靜定結構未知力的反為正規律；繪制軸力圖、剪力圖的力矢移動法則；按照橡皮筋變形繪彎矩圖的簡便作法以及與上述方法對應的計算機輔助教學軟體.相信這樣作，對教學可起到省課時、效果好的作用Therefore, the safety of bulk carrier is widely concerned ; the theory of insubmersibility is followed by the introductions of domestic and international regulations, solutions, rules and requirements on the floodability ; introduced are the conditions of hold in flooded condition, and provided are the calculation methodology of the stability and buoyancy when flooding. the concept of cargo permeability is concretely defined, and the calculation methods of the amount of flooding waters are executed ; the application of the influence numbers simplify the calculation of the still water bending moment and shearing force in flooded conditions. a new method to calculate the maximum still water bending moment and shearing force is developed by means of the influence numbers ; the simulation system provides a means of evaluation and forecast on ship ' s danger extent after ship is damaged
在抗沉性公式的推導過程中採用一些假設，並分析了這些假設對結果的影響；然後介紹了船舶強度的概念和計算方法，鑒于現有的剪力彎矩計算方法工作量大、效率不高的缺點，引用影響數計算船舶進水后的剪力和彎矩；最後根據船舶抗沉性理論對散貨船破艙進水進行模擬，在模擬中根據船舶破艙的實際危險情況，採用直觀的圖形輸入的辦法，判斷船舶的危險程度並計算船舶到達危險狀態的時間以助於船長做出正確快速的決策。Steel frame with welding joint easily occur brittle collapse because of having a low ductility at joints then ， a semi - rigid connected steel frame has large the energy absorption capacity which can resist dynamic loads and the using steel qualities of bracing system and joints are small so adopting a semi - rigid jointed steel frame is economical and stable but for semi - rigid connections are complex and variable ， in conventional analysis and design of steel structures ， it is usually assumed that the connections between columns and beams are either rigid or pinned the analysis of steel frames adopting the assumption can simplify the procedure of analysis and design ， but cannot precisely reflect structural practical circumstance and the errors of calculating results are large ， even ， get incorrect conclusions semi - rigid connection was referred to in chinese code for design of steel structures ( 2001 ， 10 ) ， however ， it isn ’ t specified how to apply semi - rigid joints in design in fact it cannot be carry out the purpose of the paper give a calculating method that accords practical engineering and easily put into effect worthwhile it is going to promote the development of semi - rigid jointed steel frame in design and heighten structural stability in the paper ， at first some commonly employed methods for the modeling of connection behavior are introduced richard abbott function modeling of connection is adopted for extended end plate bolted connection by the 34 test data comparing to regression analysis indicate richard - abbott function modeling of connection represents an excellent fit to test data then after a semi - rigid joint behavior can be modeled as a finite stiffness rotation spring ， base on rotation and displacement equation derive the element stiffness matrixes with semi - rigid connections where the effects ofj ointed flexibility geometric non - linearity and shear forces in the connection deformations have been considered in and fixed - end forces are modified finally, a program for calculating semi - rigid with incremental - iterative method has been
本文的目的就是為半剛性連接鋼框架的設計提供一種既符合工程實際又簡便易行的計算方法，供規范使用過程的補充、延伸或參考；同時，也將促進半剛性連接鋼框架設計技術的發展，為提高結構安全性能、節省工程成本發揮應有的作用。本文首先介紹了常見的幾種應用較為廣泛的樑柱連接彎矩轉角關系模型，在分析比較的基礎上，選用richard ? abbott函數模型作為外伸端板連接彎矩轉角關系模型，通過對34個外伸端板連接的實驗數據與回歸分析得到的參數比較可知，經回歸分析得到的此模型參數與實驗數據符合較好。然後用彈簧表徵連接點的轉動剛度，根據梁的轉角位移方程推導出半剛性連接的剛度矩陣，在單元剛度矩陣中考慮了節點柔性、幾何非線性和剪切變形的影響，並對固端力進行了修正，最後用增量迭代法編制有限元程序進行計算和分析。Then a semi - rigid joint behavior can be modeled as a finite stiffness rotation spring. basing on rotation and displacement equation, we obtain the element stiffness matrixes with semi - rigid connections where the effects of material nonlinear, hysteresis behavior and shear forces in the connection deformations have been considered in and at the same time we modify the fixed - end forces. finally, a program for calculating the elastic - plastic earthquake seismic of semi - rigid connected steel frame structure by step and step integration of wilson -
本文在介紹和分析半剛性連接彎矩與轉角連接關系模型的基礎上，用帶有轉動剛度的彈簧表徵半剛性連接，推導出半剛性連接的剛度矩陣，並對桿件固端力進行修正，同時在考慮剪切變形、材料彈塑性、及構件的動力滯回性能的基礎上，編制了結構彈塑性地震動力時程分析有限元計算程序。Then after a semi - rigid joint behavior can be modeled as a finite stiffness rotation spring, base on rotation and displacement equation derive the element stiffness matrixes with semi - rigid connections where the effects of jointed flexibility and shear forces in the connection deformations have been considered in and fixed - end forces are modified. finally, a program for calculating system reliability of semi - ridge steel frames with monte carlo method and finite element analysis has compiled for calculating and analyzing. by calculating results of several examples for steel frame in semi - rigid joints case show the change of joint stiffness and other kinds of factors affect the system
接著本文在介紹和分析半剛性連接彎矩和轉角關系模型的基礎上，用帶有轉動剛度的彈簧表徵半剛性連接，推導出半剛性連接的剛度矩陣，對固端力進行修正，同時考慮了剪切變形的影響，編制了半剛接鋼結構平面框架的有限元程序bhpfl ，並在其基礎上編制了基於蒙特卡洛法的montecarlo - bhpfl有限元相結合的方法，進行體系可靠度的分析。Based on the minimum potential energy principal, the influences of three loads, which are concentrated force, trapezoidal load and sinusoid load, over shear lag of cantilever single - box - single - cell box girder are deducted and discussed, and a conclusion is reached, which has some instructive significance for designer to determine the sectional dimension and reinforcing bars ; the bending normal stress changes greatly as considering the shear lag effect
以最小勢能原理為基礎，推導並討論了3種形式的荷載：集中力、梯形荷載、正弦形荷載對懸臂單箱單室箱形梁剪力滯的影響，得出考慮剪力滯效應后彎曲法向應力有較大變化的結論，對設計人員確定截面尺寸、截面配筋具有一定的指導意義。分享友人