拱高度 的英文怎麼說
中文拼音 [gǒnggāodù]
拱高度
英文
pitch of arch-
The calculation modes of the coefficient of shrinkage and creep of the bulgy core concrete in steel tube are discussed. based on a few reasonable hypotheses and the stress - strain relation of concrete acquired by the " adjusting valid modulus depending on load time " method, a compact formula is reasoned out, which is applied to calculate the equivalent elastic modulus of the bulgy core concrete considering the affection of shrinkage and creep. so, the analysis of the affection on cfst arch bridge by shrinkage and creep can be progressed by pole - girder fem, further more, the analysis precision is quite high
本文還對核心膨脹混凝土特殊的收縮、徐變系數計算模式展開了探討,在合理的假設前提下,採用「齡期調整的有效模量法」得到的混凝土的本構關系,推導出鋼管內核心混凝土在考慮徐變影響后的等效彈性模量計算公式,並以此為基礎採用桿系有限元方法來對鋼管混凝土拱橋進行較高精度的收縮徐變分析。The superstructure has a depth of 3 ft. 6 in. with a marked camber of 19 ft. 8 in.
上部結構的建築高度為3英尺6英寸,有19英尺8英寸顯著的上拱度。Compared to an ordinary rudder, the value of lift coefficient of ichthyoid rudder is about 30 % higher and the maximum rudder angle of it nearly reaches 45 degrees. ichthyoid rudder is a design under such a conception as to effectively utilize the propellers slipstream for rudder action, and featured by having a fish - shaped one - piece construction that is to say - no part of ichthyoid rudder can move in the water
其研究的魚形舵是一個沒有在水下移動的魚尾形剖面單片結構,增加了全舵的剖面拱度,使螺旋槳尾流的折射水量增強,進而增大了水動力的作用,使之比普通流線形舵的升力提高30左右。With resonable calculating model and dynamic analysis method, the construction control elevation can be decided and so the precompression difficulty of support can be solved in the construction of large - span arched bridge
採用精確的計算模型和動態分析技術,一次性給出施工控制標高,解決了大跨度拱橋有支架施工中支架需要預壓的問題。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。2 ) from the angle of constructing course, steeve - arch supporting structure requires low - capacity cranes to erect, and simple constructing methods easy to meet. the time spending on construction is short. the usual arch supporting structure requires high - capacity cranes to erect, and complicate constructing methods hard to meet
2 )從施工角度看,吊桿式拱架支承結構對吊車的起吊能力要求低,工藝簡單,施工方便,工期短;豎桿式拱架支承結構起頂重量大,對吊車的起吊能力要求高,施工難度大。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。New architecture is provided for the strutural form of single rib trunk section bowstring arch bridge with major span and lower strutural high, nd i organized the first such type of design project
提出了適用於較大跨度、較低結構高度的單肋箱形截面系桿拱的結構形式,並已組織完成了首項設計。The building mass is structured by a setback in the fa ? ade as well as large scale slits, which cut horizontally at the arcade ' s side entrances and vertically at the tower entrances
大尺度切入建築的單體元素(水平方向為購物中心旁門的連拱廊,垂直方向則為高塔入口)與立面的退進強調了建築的形態結構。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。Gongbei customs started installing gps for small - scale boats navigating between zhuhai, hong kong and macau in order to improve the efficiency of customs checking
從6月1日起,拱北海關對往來港澳的小型船舶全面安裝gps系統,以加快貨物通關速度,提高稽查走私的效率。The software ansys6. 0 is used to analysis the stability of the state after construction of tongwamen bridge, linear method is used in analyzing the finite element model of the bridge, the coeffient of stability of different state after construction is given. on the basis, the effect of different factors such as the arrangement of lateral brace, the sloping angle of arch ribs, the stiffness of bridge deck system, the effect of non - orientedly conservative loadings of the hanger and tie bar etc is discussed. the different coefficients of stability of changing these factors are given, so the factors that are vital to the lateral stability of x - type arches are found, and the rationality of the methods taken to enhance the lateral stability of tongwamen bridge is evaluated
本文應用有限元分析商業軟體ansys6 . 0 ,採用線彈性方法,通過對該橋的空間有限元模型進行穩定性分析,得出其成橋運營階段各種工況下的穩定安全系數。在此基礎上,本文還通過有限元模型分析,就拱的矢跨比、吊桿(立柱)的非保向力效應、橋面系的剛度、橫撐布置形式、拱肋側傾角等因素對該橋整體穩定性的影響展開探討與研究。文中給出了各因素變化情況下的穩定安全系數,指出了對鋼管混凝土提籃拱橫向穩定性有顯著影響的因素及其合理變化范圍,並對銅瓦門大橋提高橫向穩定性的措施的經濟合理性進行了分析。Because of limit that invisibility and discommodious in anciently program, based on the method of limited rigid body equilibrium, using visual program language vb and connect autocad, realize plane and solid programme of abutment analysis of arch dam, provide alternation interface for designer. presently, our country constructing and will construct high 300m arch dam, it is important to judge security based on nonlinear fem analysis. basic theory of nonlinear fem analysis and its realization in ansys were studied
針對傳統程序的存在問題,非直觀、不易操作特點,以剛體極限平衡法為基本分析方法, visualbasic作為操作平臺,結合autocad圖形軟體,完成了剛體極限平衡法二維、三維壩肩穩定分析程序設計,使之具有直觀性,可視性、易操作性,為設計人員提供了具有友好界面的工程使用軟體目前我國西部在建和將建一批300m級的高拱壩,運用有限元方法計分析拱壩穩定性、評判大壩安全度十分有必要。The paper mentions the design of three - dimensional graphics modeling in the mine such as shaft, laneway, and equipment of transport and mining. human - computer interaction and viewpoint rambling in the demo system are realized so that the simulating staff may look at circumstances from different viewpoint and positions. under the precondition of limited resources holding, the contradiction between the fidelity of image display and real - time feature of system interaction process is better resolved with using of display list and model culling technology
論文中採用了opengl圖形庫的基本繪圖函數進行三維圖形的模型設計,並詳細給出了立井、拱形巷道、梯形巷道以及工作面支架和井底運輸巷道設備的三維圖形設計方法;並著重分析人機交互與視點漫遊功能的技術在系統中的實現;在佔用有限資源的前提下,為了提高場景實時顯示速度,論文中採用顯示列表和模型淘汰等技術,並編制出了一個虛擬礦井實例。On the contents of two sides abovementined, this paper attempts to do some initial researches from three angles as follows : 1, the analyses of anti - seismic features on longitudinal direction of the aqueduct l ) the seismic longitudinal effects are small. the vibrant characters are decided from the structure integration and rigidness of piers and main arch - ring of the aqueduct, so the following measures should be taken in order to weaken and isolate seismic influence : properly broadening the section sizes and adopting the high class concrete, lowering the height and barycenter of building, setting hoop steel bars so as to increase the plasticity of the concrete which can absorb the seismic energy and prevent the damages due to stress centralization on the linkages and changing place
本文試圖就上述的這兩大方面的內容,從以下三個角度進行了初步研究: 1 、縱槽向抗震性能分析1 )湯峪河吊桿拱支承結構的縱槽向地震效應較小;吊桿式拱架結構動力特性取決于槽墩和主拱圈的剛度,以及結構的整體性,故適當加大構件截面尺寸或提高砼標號,盡量降低結構的建築高度和重心,在構件連接和變截面處增設梗脅,按照約束混凝土的要求來加強箍筋的配置,增加砼的延性,以克服地震時構件連接和變截面處的應力集中造成的坡壞,並吸收大量的地震能量,從而起到隔震,減震的效果。Aesthetic appearance is one of the most important criteria used by consumers in judging clothing wear performance. bagging is a kind of three - dimensional residual deformation that deteriorates garment appearance during wear and caused dissatisfaction. to understand the psychophysical mechanisms of fabric bagging perception, a method of subjectively evaluating this behavior is developed by using a series of photographs taken from bagged fabric samples. both ranking and rating scales are used as the psychological scales. the two scales are highly correlated with each other, but the rating scale provides more information than the ranking scales and can indicate perceived differences between fabrics. a linear relationship between subjective perceptions and measured residual bagging height shows that perception of fabric bagging follows stevens ? power law. residual bagging height contributes up to 94 % of the total variance in the perception of fabric bagging. the rest of the variation may be attributed to anistropic behavior during the bagging process
美觀是消費者日常服裝穿著功能中最重要的指標之一.起拱是一種外衣穿著中引起變化,令人不滿的三維殘余變形.一種主觀評價方法是從一系列起拱織物的照片來理解心理物理學規律,採用優劣排序等級和優劣評判等級兩種方法用於心理評價標度.這兩種等級互相間緊密相關,但評判等級比排序等級包含更多的信息,可以更好地區分出兩種織物間的差異.主觀評價結果與測量得到的殘余起拱高度之間線性相關,表明了織物起拱特性符合斯特藩指數定律.殘余起拱高度對織物起拱特性總方差的貢獻在94 %以上.其它可能是起拱時各向異性因素引起的Then the probably factors which affect the arch in the wall are analyzed through the linear program in which the ratio of the height to the span of the beam is the most
然後用線彈性程序對可能影響墻梁拱效應的各個因素進行了詳細的分析,得出托梁的高跨比是影響墻梁拱效應高度的最主要因素。The scale and height of rolling - concrete are spread increasingly, such as the technique studied recently that the 300 meters high gravity dam and the 200 meters high arch dam, which requires more experience in the damming technique, construction crafts and mechanization
目前,碾壓混凝土壩的規模和高度正在日益擴大, 300m級的碾壓混凝土重力壩和200m級的碾壓混凝土拱壩的研究正方興未艾,對碾壓混凝土築壩技術、施工工藝和機械化程度的要求也更高。According to the concrete ages of different grout compartments, the concrete temperature rising process and the arching temperatures etc., aiming at the optimization of technology and economy, the paper studies systematically the feasibility of applying different temperature control measures in different seasons and at different elevations ; and obtains characteristic parameters of arch dam temperature fields and stress fields so as to provide a basis for construction units to implement second stage cooling or third stage cooling according to particular demand at that time
為了達到技術上與經濟上雙優的目的,根據不同灌漿區的混凝土齡欺、混凝土溫升過程、封拱溫度等,系統研究了在不同季節里、在不同高程上採取不同溫控措施的可行性,得到了拱壩溫度場與應力場的特徵參數,為施工單位根據當時的特定需要,進行二期冷卻或三期冷卻提供了依據。In the analysis, a cfst arch ( single tube ) is first divided into a finite number of straight beam elements. according to the virtual work principle and the modified newton - raphson iteration method the tangent stiffness matrix considering double nonlinear properties is established. with regard to the non - equilibrium forces, the material nonlinear property along the height of the section and the length of the element is considered and the computation accuracy is improved as a result
本文首先將拱肋劃分為一系列的直梁單元,運用虛功原理和修正newton - raphan數值迭代演算法的基本原理準確推導了拱肋直梁單元的非線性切線剛度矩陣;在不平衡力方面考慮了沿截面高度和單元長度方向材料非線性的發展過程,提高了計算精度;再根據得到的切線剛度矩陣採用荷載增量步內修正newton - raphan迭代的增量迭代法進行了求解。分享友人