荷載增量比 的英文怎麼說
中文拼音 [hézǎizēngliángbǐ]
荷載增量比
英文
load increment ratio-
: 36 < kth < 37 mpa / m3 / 2, 42 < kih < 44mpa / m3 / 2, 51 < kc < 52 mpa / m3 / 2 through the sem fractography, it is know that the susceptibility to brittle failure at room temperature is more than below 100 ?. and the susceptibility to brittle failure increase with hydrogen increasing, under the sustained loading, ductile cracking appears. the quantity of brittle cracking is more with crack growth
T44mpa m 『 q ， sl lt52mpa in 』 」斷口分析表明，該合金充氫后其室溫時的氫脆敏感性大於100oc時的氫脆敏感性；且隨氫含量升高，氫脆敏感性增加：在恆載荷的作用下，該合金裂二紋開始擴展時顯示的是韌性起裂；隨裂紋增長，試樣脆性斷裂的比例增大。By the check - out, inspection and measurement to start construction the industrial art to this test pile with the examination between stake body mass and bearing power, made sure the stroke reasonable operation method drilling under the dissolved cavern geology term ; the pier foundation loading test expressed the lading and rub the lading that resistance drag a glazing for of relation, and to the borehole cast - in - place concrete pile in the karst terrain deliver with break the mechanism, the characteristic of bearing power, proceeding the spot test job of the full of result ; the test data expresses the stake side friction resistance to rises with a bat batch terminal friction resistance very important function, the of tip of pile resistance drag occupies the proportion very few
通過對本次試樁施工工藝的檢測和樁身質量及承載力的檢驗，確定了沖擊鉆在溶洞地質條件下的合理使用方法；基樁承載實驗表明了荷載與摩擦阻力之間的關系，並對巖溶地區的嵌巖灌注樁的荷載傳遞和破壞機理、承載力特性，進行了富有成果的現場測試工作；試驗數據表明樁側摩阻和支盤端阻起很重要的作用，樁端阻力所佔比例甚少。這與設計樁基時的計算模式相差很大，承載力也較設計增加；使用力學數值分析方法和有限單元法，對鉆孔灌注樁樁端下的巖體強度和結構穩定性方面進行模擬計算和定量研究。This paper demonstrates ultimate stress increment of unbonded tendons can be composed of approximate elastic deformation along the elements and local plastic deformation by nonlinear analysis on the unbonded partially prestressed concrete continuous structures. referring to the rule of ultimate stress increment of unbonded tendons at every load case, a regression formula of ultimate stress increment of unbonded tendons based on elastic - perfectly plastic model has been presented for engineers to calculate ultimate stresses of unbonded tendons in prestressed concrete multi - span continuous structures
考慮在各種荷載工況作用下無粘結筋極限應力增量的變化規律，並與理想的彈塑性模型相比較，最終得出以理想彈塑性模型計算各種荷載工況作用下無粘結筋極限應力增量的回歸公式，從而為預應力混凝土多跨連續結構的無粘結筋應力設計計算提供有益的參考。Because traffic flow greatly increases in recent years and the rank of actual driving load enhances, causing this bridge to be at the excess load the service condition, so in order to guarantee the bridge ' s transport security, the main body structure of the bridge should be reinforced
摘要長沙市八一路跨線橋由於近年來交通流量大增，實際行車荷載等級提高，使得該橋處于超負荷的營運狀態，為了保證大橋營運安全，需要對此橋的主體結構進行加固，在選擇加固方案時對比了三種加固方法：鋼混凝土組合結構加固方法、混凝土結構擴大截面加固方法、粘鋼加固方法。The prototype observation shows that because settlement of soil is larger than that of piles, " arch effect " appears in the embankment so that its weight is gradually transferred from the soil to piles and pile - soil stress ratio increases
現場原型觀測表明，樁間土的沉降量大於樁頂的沉降量，填土中出現拱效應，填土荷載逐漸從樁問土向樁頂轉移，樁土應力比逐漸增加。Then the coupling beams with new reinforcement layout were made an inquiry into, and the improvement on the seismic behavior by coupling beams diagonally reinforced with a few rows in end regions was found out at last, based on the observations of the experimental phenomena and the analysis of the measurement result, and by the comparison of seismic behavior by making use of hysteretic response, ductility and energy dissipation behavior, a conclusion is presented : the code for design and construction of reinforced concrete high - rise structures ( the draft asked for advise hi 2000 ) ca n ' t ensure that the coupling beams have fairly good seismic ductility ; the result of improvement of the seismic ductility of the coupling beams by the increase hi stirrups besides the strengthen of longitudinal detailing reinforcement was n ' t obvious ; the coupling beams diagonally reinforced with a few rows in end regions have fairly good mechanisms, and the ductility and the behavior of energy dissipation are better than conventionally reinforced concrete coupling beams, so it is suitable to te tised in short coupling beams
本文通過對三根小跨高比（均為l h = 1 . 0 ）剪力墻洞口連系梁在低周反復荷載作用下的試驗，了解了嚴格按《鋼筋混凝土高層建築結構設計與施工規程》 （ 2000年徵求意見稿）設計的連梁具有的抗震性能，研究了採取增大連梁配箍量同時加強縱向構造筋的方案對抗震性能的影響，並進一步對新的配筋形式的連梁進行了探討，了解了在連梁梁端配置多排交叉斜筋方案對連梁抗震性能的改善。通過對試驗現象的觀察和量測結果的分析，利用荷載?位移滯回曲線、延性和耗能性能等指標對各個試件的抗震性能進行了比較，最後得出結論： 《鋼筋混凝土高層建築結構設計與施工規程》 （ 2000年徵求意見稿）不能保證小跨高比連梁具有較好的抗震延性：通過增大連梁配箍量同時加強縱向構造筋的方案對改善連梁的抗震延性的效果不太明顯；梁端配置多排交叉斜筋的連梁具有相對較好的受力性能，其延性和耗能性能等各項性能指標均優于普通配筋連梁，宜在深連梁中採用。Firstly, by the method of laplace transform, one dimensional consolidation of one - layer gibson soils under time - depend loading is studied and the analytical solutions in frequency domain are obtained. on the basis of the solutions obtained and the computation through programming, the influence of some parameters and loading conditions on the consolidation behavior under trapezoidal, triangular and rectangular cyclic loading, is investigated. secondly, one - dimensional consolidation of one - layered gibson soils with semi - pervious boundaries is studied in this paper, and according to numerical examples, some characters of consolidation such as the effective stress and settlement in the soils under arbitrary loading are found
首先運用了laplase變換獲得了單層gibson地基（壓縮模量隨深度線性增加的地基）在任意荷載下頻域內的一維固結解析解，通過laplace逆變換，基於以上解答用數值方法編製程序對單層地基在常見荷載（驟加荷載、緩加荷載、矩形波載、三角形波載）作用下的一維固結性狀進行了討論，並與傳統的太沙基理論進行了比較。Firstly, the paper introduces the development and application of computer graphics & image technique, discusses the principle and method of cg and digital image processing, such as matrix of the graphic transformation, homogeneous reference frame, sampling and quantization of the image, file format of the image, template operation, etc. secondly the paper introduces the purpose and method of image enhancement processing, explains the each occasion of those methods such as threshold transformation, smoothing processing, sharpening processing, analyzes and contrasts the processing results of object image. thirdly, the paper introduces the method of mathematics morphologic, edge detection and thinning processing, attains character description of image and character dots of the contour. fourthly, the paper processes the coordinate transformation to character dots and basic splines fitting, imports correlative condition to devise meshing line and meshing track
本文首先介紹了計算機圖形圖像技術的發展與應用情況，對計算機圖形學和數字圖像處理的一些基本理論和方法如圖形變換矩陣、齊次坐標系、圖像采樣和量化、圖像文件格式、模板操作等內容進行了討論：然後對圖像增強處理的目的和方法進行了介紹，對諸如閥值變換、平滑處理、銳化處理等方法的應用場合進行了說明，並對實物圖像的處理結果進行了分析與比較；接下來介紹了數學形態學方法、對增強后的圖像進行邊緣檢測的方法和圖像的特徵描述方法，並獲取輪廓的特徵點：隨后對獲取的特徵點進行坐標變換，並進行b樣條曲線擬合，引入相關條件生成齒輪副的嚙合線及嚙合軌跡：最後引入等值線和區域填充表示方法，並以等值線和區域填充的形式對弧齒錐齒輪嚙合模擬的載荷分佈情況進行了直觀的表示。Based on the characters of structure of the project, the structural style selection is given and analysis program of the latticed shell of double - layer hyperbolic pyramid cooling tower is programmed by the finite element theory and vb 6. 0 advanced programming language, which includes of 15 programs and directly aims at cooler tower and gives the forcing property by the computing program of the latticed shell of double - layer hyperbolic developed. analysis of static stress and temperature stress is given out by means of three dimens ions members finite element and numerical analysis, optimum design of member sections is given out by full stress, analysis of geometric nonlinear is given out by nonlinear finite element, analysis of earthquake stress is given out by the mode decomposition response - spectrum method, the latticed shell cooling tower compared with the reinforced concrete structure finally
該軟體包括15個程序，其針對性強，直接針對冷卻塔，對該結構進行了受力分析，具體分析包括：採用空間桿件有限元和數值分析方法對結構進行了靜力分析與溫度應力分析；採用滿應力法對應用於冷卻塔的桿件截面進行了優化設計；採用非線性有限元分析方法，並利用荷載增量法對該結構進行幾何非線性分析；採用振型分解反應譜法對網殼的自震特性及地震反應作了一定的研究；並且將具體工程的研究結果與鋼筋混凝土結構冷卻塔進行對比。First, based on the analysis to the development condition of computer and property of the input data of bridge, this paper, taking convenience and practicability as principle, develops the multi passages data - in system made up with human - computer interactive interface and excel import model. second, after comparing and analyzing to the calculation theories and methods of creep and shrinkage, clearing up the key steps of creep and shrinkage analysis, the paper takes incremental method to establish program to analyze secondary inner force caused by creep and shrinkage. third, the paper puts some optimal or simplified treatment to the contents of pre - stress and develops relative program ; in addition, through analysis to the different methods used to calculate the secondary inner force caused by pre - stress, the paper combines equivalent load method with finite element, carries out some simplified treatments, and establishes program to calculate secondary inner force caused by pre - stress
首先，在分析當前計算機的發展狀況及橋梁結構輸入數據特點的基礎上，以方便、實用為原則，採用人機交互界面和excel輸入方式聯合的多通道數據輸入系統；其次，通過比較分析徐變收縮計算的各種理論及方法，澄清了徐變收縮分析的關鍵過程，並採用增量法編製程序，實現徐變收縮次內力分析；再次，對預應力的相關計算內容進行適當優化或簡化處理，並編制相應程序；另外，本文還在比較預應力次內力各種計算方法的基礎上，將等效荷載法結合有限元進行一些簡化處理，編製程序實現預應力次內力的計算；最後以三個算例來校核計算方法及程序運行結果的可靠性，取得了預期效果。Based on the new model, the influences caused by soil structure, apparent preconsolidation pressure, the re - compression index, the coefficient of secondary compression, the magnitude of loading, the coefficient of permeability, the rate of loading, the thickness of clay, the self - weight, the layered property etc, in the process consolidation of soil with structure, are analyzed in detail. the difference between the present model and yin & graham model was also given
基於本文新建模型，分析論述土結構性、表觀前期固結壓力、再壓縮系數、次固結系數、荷載增量大小、滲透系數、加荷速率、固結層厚度、自重應力隨深度變化和土體成層性等對土固結的影響，比較本文模型與yin & graham模型的異同，闡述土結構性和流變性對軟土固結壓縮行為的影響。The result shows that the dynamic modulus of sandy pebble soil reduces nonlinearly with the accretion of dynamic strain, but increases with consolidation ratio, and affected little by the vibration frequency
試驗結果表明，砂卵石土呈現出動彈性模量隨動應變的增大而非線性地降低，動荷載頻率對動彈性模量影響很小，動彈性模量隨著固結比的增大而顯著增大的規律。And because the excavation is often processed in steps during the multi - timbering structure construction, the thesis also analyses briefly to the multi - timbering structure on each working condition during the process of excavation and compares it with the actual measurement combining with the analysis method considering soil - structure and load increment method which is put forward in the thesis
同時，本文也針對多支撐支護結構施工時，存在的分步開挖的情況，結合本論文所提考慮土-結構共同作用的分析方法及荷載增量法理論，對多支撐支護結構在開挖過程中各工況進行了簡要分析，並與實測結果進行了比較分析。Secondly, by using the great fem programme, analyzes the mechanism of bearing and deformation of rigid - soften composite piles foundation. draw a conclusion : exist a specific value, when the number of the rigid pile less than it, increase the number of the rigid pile, effect of reducing the settlement of rigid - soften composite piles foundation is distinct, on the contrary, when the number of the rigid pile more than it, increase the number of the rigid pile, effect of reducing the settlement of rigid - soften composite piles foundation is indistinct. finally, analyze and sum up some important design ' s constitutes of the rigid - soften composite piles foundation
其次，採用有限元計算程序，對剛柔復合樁基進行了三維有限元分析，考察了在不同荷載水平下，不同剛柔性樁比例的情況下，復合地基的平均沉降量、土體的沉降等值線和應力等值線以及剛性樁和柔性樁樁頂荷載比值隨不同基礎荷載水平的變化規律，得出了一些具有實際指導意義的結論：當總樁數不變，長樁比例增加到一定程度時，再增加剛性長樁的數量對地基整體沉降幾乎沒有什麼效果；剛柔樁分佈一定，柔性樁實際承載力小於其極限承載力時，外加荷載的增加，剛性單樁和柔性單樁所承當荷載的比值基本不變。分享友人