迭層系數 的英文怎麼說
中文拼音 [diěcéngxìshǔ]
迭層系數
英文
stacking factor-
To meet the demands for large space and flexible compartmentation of buildings, laminated vierendeel trusses are adopted in high - position transfer story structures. first the bearing characteristics are analyzed, in which reasonable stiffness ratio of the upper chord, middle chord, and lower chord is derived. then combined with an actual engineering model ( 1 8 similar ratio ), the static loading and pseudo - dynamic tests of two models for laminated vierendeel truss used in transfer story structures are conducted, in which one model adopts reinforced concrete, and the other adopts prestressed concrete and shape steel concrete. seismic behaviors are analyzed, including inter - story displacement, base shear - displacement skeleton curves, and equivalent viscosity - damping curves. a program is programmed to carry out the elasto - plastic dynamic analysis, and displacement time - history curves of the two models are derived. the test and analysis results show that the laminated vierendeel truss with prestressed concrete and shape steel concrete has excellent seismic behaviors. it can solve the disadvantages of laminated vierendeel trusses used in transfer story structures. finally, some design suggestions are put forward, which can be referenced by similar engineering
為滿足建築物大空間和靈活隔斷要求，在高位轉換層結構中採用迭層空腹桁架結構.首先分析了其受力性能，得出了空腹桁架各構件合理的截面剛度以及布局形式.然後結合一實際工程，進行了兩榀迭層空腹桁架轉換結構模型（ 1 : 8相似比）的豎向荷載下靜力試驗以及擬動力試驗.其中一榀為普通混凝土迭層空腹桁架，另一榀配置了預應力和鋼骨混凝土，對比分析了兩模型的層間位移比、骨架曲線以及等效粘質阻力系數等抗震性能的比較，並進行了彈塑性動力分析.試驗和分析結果表明，配置預應力和型鋼混凝土的迭層空腹桁架轉換結構具有良好的抗震性能，可以成功地解決迭層空腹桁架作為轉換層結構所產生的弊端問題，最後對這類轉換層結構提出了相應的設計建議A normal transform is introduced, and there are enough much grids in the region between the critical layer and the wall, where the variation of the disturbance is the quickest. the finite - difference of governing equations with fourth - order accuracy in the normal direction is utilized in full regions including points close the wall, and is very important for accurately discreting equations. the combination of global and local methods is implemented, and a new iterative formula is derived
對于曲線坐標系下的拋物化穩定性方程，文中發展了求解的高效數值方法:引進法向變換，使得在臨界層與壁面之間的擾動量變化最快的區域有更多的法向網格點;導出包含邊界鄰域在內的完全四階精度的法向有限差分格式，這對方程精確離散至關重要;採用全局法和局部法相結合的方法及其新的迭代公式，大大加速收斂並得到更精確的特徵值。The azeotropic distillation of the system acetic acid - water - azeotropic agent ( isopropyl acetate and butyl acetate ) is simulated. due to the non - ideal behavior, nrtl - hoc and uniquac - hoc model is used to depict vapor - liquid phase equilibrium behavior of this system. concerning the liquid in the decanter, the stability is checked by tangent plane stability analysis, and the initialization of phase splitting calculation is produced. a good estimate of the phase fration is gotten by successive substitution with newton ' s method, and every component of two phase is gotten by mass equilibrium equation. finally, the solution of this equation is produced with successive substitution calcultion. the naphtali - sandholm method is used to simulation of azeotropic distillation. by virtue of this combined calculation method, the simulation is begun with operational data as basical data. the results of simulation accord with the operating data, which proved that the combined calculation method is credible
該體系具有高度非理想性，氣液相平衡模型採用nrtl - hoc和uniquac - hoc模型，採用切平面判據法對進入分層器中的液相進行液相穩定性測試，提供液液相分離計算的初值，再結合牛頓拉夫森迭代法運算求得相分割系數，根據物料衡算求出各相組成，循環迭代可求得分層各組分數據，共沸精餾模擬計算採用那夫塔列-山德荷姆全變量迭代演算法。Based on the analysis of bearing characteristic of the staggered truss system, a simplified calculation model of staggered truss structure under vertical loads or lateral loads is presented. after that, according to the simplified calculation model, iterate method for calculating internal forces of vierendeel staggered truss structure under vertical loads and a method for calculating member forces and lateral deflection of structure is provided. at last, a method for calculating effective - length factor of column is provided by analyzing the effect of restraint of column ends, other columns in same story and neighboring story on effective - length of columns
通過對交錯桁架結構體系受力特點的分析，確定了在豎向荷載和水平荷載作用下交錯桁架結構體系的簡化計算模型；然後，根據計算模型，提出了豎向荷載作用下空腹交錯桁架結構的內力迭代計算方法以及水平荷載作用下交錯桁架結構的內力和側移計算方法；最後，通過分析柱端約束、同一樓層其它柱子以及相鄰樓層柱子的影響，給出了柱子計算長度系數的計算方法。The diagnosis program is made in visual c + +. the samples are trained with this network, during which the relationships between the network parameters ( such as rule number, study rate, expert network initial error and gate network error, circulation times and power index ) and learning error were probed into, and the outcome can provide the basis for network parameter selecting
並採用visualc + +編制了系統程序，首先通過分層混合專家網路對故障樣本進行訓練，在訓練中對分層混合專家網路各參數（規則數、學習率、門網路中止誤差、專家網路初試迭代誤差、循環次數、加權指數等）與學習誤差平方和的關系進行了探討，其結果為樣本網路參數的合理選取提供了依據。In this paper, based on some previous scholars " excellent study fruits, the finite element iteration method for stability safety factor of landslide body against sliding is presented, when using this method, the thin layer element is used to simulate interlayer and structural joint for sliding surfaces
本文在總結前人的優秀研究成果的基礎之上，採用合理模擬以夾層、結構面等為滑動面的薄層單元及相應的非線性分析方法，提出了塌滑體抗滑穩定安全系數的有限元迭代解法。( 3 ) based on the working performance and mutual influence of the system of pcc pile - soil - cushion, pcc pile composite foundation is discussed in elastic method. a new calculation method of composite modulus of the pcc pile composite foundation is developed. furthermore, pile - soil stress ratio and settlement can be derived from the proposed method in this paper
（ 3 ）基於pcc樁?土?墊層所組成的一個工作體系，綜合考慮各部分的工作特性及相互影響，對pcc樁進行整體分析，建立樁體平衡方程，考慮pcc樁在褥墊層及下臥層中的上、下刺入量對復合模量的影響，並通過迭代的方法最後確定樁體模量發揮系數，提出了一種求解pcc樁復合地基模量的計算方法，進而得到pcc樁復合地基的沉降計算和樁土應力比公式。In the yield data acquire multi - line geometric in a radial pattern is adopted. before theoretical explanations about the non - uniqueness of inversions and the necessity of constrains are illustrated, the description of linear travel - time interpolation ( lti ) calculations, the derivation of jacobian linear equations, and the deductions of solving large sparse matrix equations, i. e. the lsqr iterations, are involved. in order to cope with the uncertainties in tomography, we reach several categories on constraint methods
對於野外數據採集採用多測線上放射狀布置檢波器；圍繞層析成像方法，文章分析了線性差值射線追蹤lti技術，推導出在矩形網格內速度以雙線性關系變化時方程組的解析式，進一步詳細探討方程組的求解方法，即最小平方正交分解法，並給出了迭代公式。分享友人