拱曲線 的英文怎麼說
中文拼音 [gǒngqūxiàn]
拱曲線
英文
arch line- 拱 : Ⅰ動詞1 (兩手相合 臂的前部上舉) cup one hand in the other before the chest 2 (環繞) encircle; ...
- 曲 : 曲名詞1 (一種韻文形式) qu a type of verse for singing which emerged in the southern song and ji...
- 線 : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
- 曲線 : [數學] curve; bight; bought; profile; net曲線板 french curve; irregular curve; curve board; splin...
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Approach to the camber of urban flexible pavement
城市道路柔性路面路拱曲線的探討On this foundation the article inducts in detail the method which is based on the relative settlement of calculating unit area end support ( qb ) force at the same time considering the feature of pedestal pile ' s " arch effect " the article introduces conception of pile effective length and finally obtain t he formula of calculating man - made pipe with bulb - shaped axial carrying capacity. the article uses marc program to calculate and analyze foundation soil ' s stress and displacement and gets the change curve chart and the proportion that is shared by king - pipe side soil friction resistance and pipe end counterforce respectively. the article inducts the structure of pedestal in detail on the basis of generalizing pedestal application cases of many countries
在此基礎上論文詳細歸納了以相對沉降為依據確定單位面積端承力q _ b的計算方法,並考慮擴底樁的「拱效應」特點引入了有效樁長的概念,最後結合公路規范推出了比較實用的人工挖孔擴底樁軸向承載力計算公式。論文運用了marc程序對地基土的應力和位移進行了有限元數值計算分析,得到了地基土的應力和位移場的變化曲線和在加載過程中樁側土摩阻力和樁端反力各自所承擔的比例;本文還在總結各國挖孔擴底樁應用情況的基礎上就擴底樁的構造進行了詳細的歸納。An algorithm for arch dams of parabola double curvature
拋物線雙曲拱壩計算Based on extensive investigation of construction technique history of chinese ancient buildings, the structure method, structure developing history and seismic behavior of chinese ancient timber structure buildings are analyzed in several respects of the structural system and form. through a series of experiments on constituent parts of chinese ancient timber building structure, including the tests on the corbels and brackets called dougong subjected to low cyclic reversed loadings, the tests on the wooden frame using the tenon - mortise joints as connections of column and beam subjected to low cyclic reversed loadings, the tests on vibration isolation effect of friction and slippage between column footing and their socle base, and a series of shaking table tests on a chinese ancient timber structure palace building mode under artificial earthquake at serving conditions, destroyed conditions and reinforced conditions, many valuable results of structures such as moment - curvature hysteretic loops of dougong structure and tenon - mortise joints under low cyckc reversed loadings, the static function, the seismic performance, energy dissipation, vibration reduction, energy - loss mechanism, nechanicalmode and failure mode were studied. aplenty of valuable parameters of the structure system were obtained, such as the natural period of structure, vibration modes, damping ratio, factor of vibration isolation, oscillate amplitude of ineitial accebration, velocity and displacement, magnitude of slippage, and the mechanism of structure failure and collapse etc. based on these research, the complete analysis of ancient timber structure under earthquake were carried out in which including mechanism analysis method, calculating mode, strength analysis of members and joints, strengthening methods for serving damaged ancient timber structure buildings were also taken into account
依照宋代《營造法式》建造了抬梁式殿堂木結構構件及結構模型,對中國古代木結構中的典型構造如:柱腳在礎石頂面平擱簡支、柱架榫卯連接、柱高不越間之廣、側腳、生起、斗拱等的構造機理及結構功能進行了量化分析和實驗研究: (一)通過木柱石礎靜摩擦試驗,測定了柱腳與石礎古鏡面間的摩擦系數及摩擦力隨上部結構荷載變化的規律; (二)通過單柱承載力試驗,測定了古建築中木柱的受力變形特徵、破壞模式、及模型材料的變形模量、極限承載力、極限變形等參量; (三)通過柱架低周反復荷載試驗,測定了柱架的抗側移剛度、柱架恢復力特性及滯回曲線、榫卯張角剛度及其變化規律、柱架及榫卯的極限承載力和極限變形、及榫卯減振參數; (四)通過斗?低周反復荷載試驗和受壓試驗,測定了古建築木構件與木構件間摩擦系數,斗?抗側移剛度,斗?恢復力特性及滯回曲線,斗?抗壓極限承載力及受力變形規律; (五)通過抬梁式殿堂間架模型振動臺試驗,測定了殿堂木構架結構自振周期,地震反應振形、阻尼特性及阻尼比;按結構分層特點對柱腳、柱頭和斗?層上的屋蓋的地震反應採用多點同步測量,對柱根滑移、榫卯變形、斗?的變形、復位、耗能減振參數等進行了定量分析。According to the information concerned, the analogous structure were adopted on the alamilo bridge in sevilla, spain and on the curved cable - stayed bridge on golf court in xiaoye city, bingbu country, japan. at present, this kind of structure has not utilized all over the country yet. nanjing, the region of basic seismic intensity 7, is an unfavorable site for anti - earthquake in terms of geological conditions according to seismic code for buildings
但是,主塔屬于傾斜高聳結構,拱屬于柔性拱結構,索屬于特殊懸索結構,經檢索了解,西班牙sevilla的alamilo橋和日本兵庫縣小野市內高爾夫球場上的曲線斜拉橋採用過類似結構,國內目前尚未有此形態的結構記載,南京地區地震基本烈度為七度,地質條件按照建築抗震設計規范之規定,屬對抗震不利地段。The research fruits in this article can provide the temperature isoline map of crown cantilever section and central longitudinal section of the dam, the stress isoline map of crown cantilever section and upstream and downstream surfaces of the dam, the maximal and minimal stress distribution map in dam abutment along with the height of dam, the maximal and minimal stress table of typical nodes and the maximal and minimal stress table in different elevations, and also provide reference basis for taking relative temperature control measures in the design and construction of rcc arch dam
本文研究成果可給出壩體的拱冠梁剖面和壩體中心縱剖面的溫度等值線圖、拱冠梁剖面和壩體上下游面應力等值線圖、壩肩最大最小應力沿壩高的分佈曲線、不同高程處典型點的最大最小應力值表以及不同高程處最大最小應力值表等成果,為碾壓混凝土拱壩的設計和施工中採取相應的溫控措施提供了參考依據。In the former, two computing modes of fem are built, aimed at the coupling of variable - profile pylon, curved - axis arch and flexible cable. the software algor feas is used to get the results of dynamic numerical analysis, such as natural vibration frequency, vibration mode, dynamic displacement, dynamic stress, which are compared with the results of shaking table test research to draw to important conclusions. these conclusions provide not only potent basis for the design and construction of nanjing century tower, but also reference for other pylon - cable - arch structures similar to the project
在動態數值分析中,針對世紀塔變截面的塔身,曲線軸線的拱以及柔性拉索相互耦合時清況,建立兩種有限元計算模式,利用有限元軟體algorfeas得到動力數值分析的結果,如:自振頻率、振型、動位移、動應力等等,再和振動臺試驗研究成果作比較,得到一些重要的結論,從而為南京世紀塔工程的設計和施工提供強有力的依據,而且為類以於世紀塔工程的其它塔-索-拱結構的設計也提供一定的參考。Forming an arch or a curve like that of an arch
拱形結構的形成拱或類似於拱的曲線Finally, niutoushan double - curvature arch dam was modeled and 3 - d fem simulation analysis was performed, so as to find out the integral safety factor and the stress and displacement patterns of dam and its foundation under different load combination
最後,對牛頭山水電站雙曲拱壩進行了有限元建模和三維非線性有限元模擬分析,計算分析了各種情況下壩體和基巖的應力位移規律,對大壩的整體安全度進行了綜合評判。One of the wedge - shaped stones forming the curved parts of an arch or a vaulted ceiling
拱楔塊用於形成拱或穹窿的曲線部分的楔形石頭中的一塊At the same time, the thesis analyses the time - state curve of the axial force and bending moment of the steel framework and the axial force of the anchor bolt. the analysis results are compared with the results of the fem calculation
同時,論文對現場監控量測獲得的鋼拱架軸力彎矩時態曲線以及錨桿軸力時態曲線進行了分析,並與理論計算進行了比較,驗證。The final nonlinear algebraic equation set is solved using the step - by - step newton - raphson iteration and the deformed curves for the corresponding state of each load increment can be determined
對應每個荷載增量,可求得鋼管混凝土拱在相應狀態下的變形曲線。對各荷載增量進行反復迭代,直至得到荷載的極限值。When there is original stage support only, the load ratio of surrounding rock gets more and more bigger with the increasing of crust stress, correspondingly, the load ratio of initial stage support gets smaller. when the initial stage support and the second support act each other, the load ratio of surrounding rock is more than fifty percent, and it has little change with the increasing of crust stress. the whole analysis of the surrounding rock and support shows that the bottom arch of liner and the feet of liner have serious stress concentration, so do the sidewalls and the foot of a wall of the surrounding rock
通過屈曲理論分析結果對比表明,彈性屈曲和突變失穩分析的結果比非線性屈曲分析的結果要大得多,非線性分析由於考慮了材料非線性和幾何非線性,因而結果與實際接近實際;當只有初期支護時,隨著地應力的增加,圍巖的荷載分擔率增大,相應地,初期支護的荷載分擔率就減小了;當有初期支護和二次襯砌共同作用時,圍巖的荷載分擔率在50以上,這一分擔率隨地應力的增加其變化不大;支護和巖體的整體分析表明,襯砌底拱及拱腳處應力集中嚴重,隧道巖體側墻及墻角圍巖的應力集中也較大。For coal bin, a coal arch breaker can be installed at its outlet or hyperbola wall coal bin be used
對于煤倉,可在其出口處設置破拱裝置或採用雙曲線壁煤倉。In the end, the steel - reinforced concrete arched bridge ( chun ' an weiping bridge ), which span is 198m, is analyzed by the proposed three - dimensional nonlinear finite element method and also those gained conclusions are directly adopted in the computation. the universal stability coefficient and nonlinear buckling stability coefficient of the bridge are respectively computed, in which the dead load and the live load are assembled according to the criterion. on the other side, the regularities of creep deformation and subsidiary stress of the investigated bridge under the first - stage dead load are carefully researched
最後,將本文所提出的三維非線性分析方法及其主要研究成果直接應用於198m跨勁型骨架式鋼管混凝土拱橋「淳安威坪大橋」的分析計算中,對該橋在最不利恆載和活載組合下的一般特徵值失穩系數和非線性屈曲系數進行了對比研究,並對一期恆載長期作用下該橋的徐變變形、附加應力以及截面應力、應變重分佈規律分別進行了深入研究。In this paper, brief summary and contrast for the analytical methods of arch dam were conducted, the visualization and parameterization of fem, and its implementation were investigated, and the system based on ansys, for the simulation fem analysis of arch dam was developed. and 3 - d nonlinear fem simulation analysis was then carried out for niutoushan arch dam, which is located in shouning county, fujian province of china
本文對拱壩的分析方法做了總結對比,研究了有限元分析中的可視化、參數化方法及它們實施技術,開發了基於ansys平臺的拱壩有限元模擬分析系統,並結合實際工程對福建省壽寧縣境內牛頭山水電站雙曲拱壩進行了三維非線性有限元整體穩定模擬分析。The experiment results and calculation results are compared too ; the conclusion that arch truss string structure can be applied in multi - stage pre - stressing construction is achieved
得出張弦拱桁架結構隨多次加載步驟的內力、位移變化曲線。計算與試驗結果較為吻合。In this thesis, on the basis of the existing successful designs. taking the railway concrete - filled steel tubular x - arch bridge, the first of its kind. in the jiuqu river in the artery running from beijing to shanghai, as an example, the author made a summary of main parameters necessary to design of these bridges, made a comparison between existing calculation three models and performed the internal force calculation, carried out the stability analysis of the bridge under and after construction, discussed the effects of the numbers and positions of the lateral braces on the stability, and also, in the last part, gave out part dynamic analysis result
本文以我國第一座鐵路鋼管混凝土拱橋? ?京滬線九曲河提籃拱橋為背景,在搜集已有的拱橋的設計資料的基礎之上,對鋼管混凝土拱橋的主要設計參數進行了歸納和總結;對九曲河鐵路提籃拱橋的簡化計算模型進行了比較並用簡化模型進行了內力分析;對拱橋在施工期間的穩定性和成橋后的穩定性作了計算,討論了橫撐的位置和數目對拱橋的穩定性的影響;對拱橋的自振特性作了分析。分享友人