拱形線 的英文怎麼說
中文拼音 [gǒngxíngxiàn]
拱形線
英文
ogive-
He advanced several paces towards the point whence the light came, and to all the excitement of his dream succeeded the calmness of reality. he found that he was in a grotto, went towards the opening, and through a kind of fanlight saw a blue sea and an azure sky. the air and water were shining in the beams of the morning sun ; on the shore the sailors were sitting, chatting and laughing ; and at ten yards from them the boat was at anchor, undulating gracefully on the water
他向光線透進來的那個地方走前幾步，在夢的興奮激動過后，跟著就來了現實的寧靜，發覺自己是在一個巖洞里，他向洞口走去，透過一座拱形的門廊，他看到一片蔚藍色的海和一片淡青色的天空，空氣和海水在清晨的陽光里閃閃發光，水手們坐在海灘上，在那兒嘰哩咕嚕地談笑著，離他們十碼遠的地方，靜靜的停著那艘小船。Abstract : the mechanical analysis for arch bridge with flat hinge joints is a mechanical problem with non - linear boundary. mechanical analysis of methods at present is not clear, which can not calculate the arch bridge with changeable section and section with complicate shape. in this paper, the new method used to get the section resistance coefficient k is presented, the iterative procedure is established to calculate the internal forces of arch bridge with flat hinge joints, and the computational example is given. the method can apply to the arch bridge with any numbers of flat hinge joints and any shape section
文摘:平鉸拱橋結構的受力分析屬于邊界非線性力學問題，目前的一些方法受力分析不太明確，對變截面、復雜形狀截面等平鉸拱橋無法進行計算.針對這種情況，提出了確定平鉸截面抗力系數k的新方法，建立了計算平鉸拱橋內力的迭代演算法，並進行了實例計算，研究結果表明，這一方法對具有任意個平鉸、任意形狀截面的拱橋結構是適用的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。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。Dimension testing method of prepared rib - like arch with box section
箱肋拱及鋼管拱預製件線形質量現場檢定方法Csfb and ssb engaged in inappropriate spinning of " hot " initial public offering allocations in violation of sro rules requiring adherence to high business standards and just and equitable principles of trade, and the firms books and records relating to certain transactions violated the broker - dealer record - keeping provisions of section 17 of the securities exchange act of 1934 and sro rules nyse rule 440 and nasd rule 3110
面對空中客車公司的激烈競爭，波音與麥道的合併有利於維護美國的航空工業大國地位其次，盡管美國只有波音公司一家干線民用飛機製造企業，但由於存在來自勢均力敵的歐洲空中客車的競爭，波音公司不可能在開放的美國和世界市場上形成絕對壟斷地位。如果波音濫用市場地位提高價格，就相當于把市場拱手讓給空中客車。On the basis, the effect of different factors such as 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
此外，採用線彈性方法，就拱的吊桿的非保向力效應、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。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。In this thesis, aim to the beam axis shape be exactitude for design, the internal force of the beam be appeased by design request, the concept of modem cybernetics is applied, at the same time, the effecting parameter has collected. the paper build the ann model in predicting the beam camber an construction and discuss indetail the extraction of inputting nodes information when quoting the fundamental principle of ann model and introducing research process of the improved bnn. according to them, ann is applied in the construction control of prestressed concrete continuous bridge
本文以大橋成橋線形滿足設計要求和成橋內力控制在設計容許范圍內為目的，運用現代控制理論的思想，引用神經網路基本原理，詳細介紹bp神經網路的研究過程，從而建立預應力混凝土連續梁橋施工預拱度的神經網路模型，並詳細討論了模型的神經網路結點信息的提取，在工程實例的基礎上進行了數值計武漢理工大學碩士學位論文算，數值表明，將神經網路應用於預應力混凝土連續梁橋施工控制，獲得了滿意的結果，在預應力混凝土連續梁橋施工控制技術研究方面，具有方便有效、精度高的優點，具有良好的應用前景。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The solution format and caculation step of nonlinear dynamic equilibrium equation was derived by newmark method in this article, and dynamic caculation flow chart and relevant program of the frp honeycomb structure was given in two dimension
本文採用newmark法推導出非線性動力平衡方程的求解格式和計算步驟，給出了二維場下玻璃鋼拱形結構的動力計算流程圖和相應的程序。According to the character that the soil can endure the press than the tensile strength, the arching shape of the soil arch between piles has been regarded as the reasonable arch axes. by analyzing the mechanical balance condition of the arch, the transfer mechanism of the thrust has been gained. at the same time, the formula for computing the thrust acting on the pile has been gotten, and the present computing formula is just the special example of it
根據巖土體抗壓性好、抗拉性差的特點，將樁間土拱的拱形視為合理拱軸線方程，通過分析土拱的力學平衡條件，得出樁間滑坡推力的傳遞模型，並由此得到抗滑樁上的滑坡推力計算公式，現有抗滑樁上滑坡推力的計算公式只是本文公式的特例。Optimization of stayed - buckle cable forces during adjustment of the line - shape on long span arch bridge
大跨度拱橋拱肋線形調整中的扣索索力優化Cable control effect infect the shape of span arch directly, even infect the bear of weight of bridge
扣索控制的優劣直接影響著拱肋線形的好壞，從而對于成橋承載受力有著重要影響。Realize the earth has magnetic field lines that loop out into ace from the northern hemi here to the southern hemi here ， arching away from the earth and it is those magnetic field lines that organize the solar storms that cause it to create auroras
要知道，地球上的磁場線以環形在空間從北半球拋向南半球，呈拱形覆蓋于地球上空，而正是這些磁場線對于太陽風暴的作用形成了極光。In order to assure that the stress and strain state of structure is secure, the author analyses respectively the objective functions of the reasonable finished state and buckle - cable adjusted phase ; thus, the optimized model based on fga is framed. finally according to the example, the computation datum are compared with the iterative forward analysis method and the optimal control theory. the result shows that this method can be used conveniently and meet the construction and design precision
為了滿足大跨度鋼管混凝土拱橋施工的安全性與成橋預期的內力狀態和拱肋線形，本文結合工程實例，分別對合理成橋狀態和扣索索長調整的目標函數的確定進行了分析，將一組多變量、多約束的最小化問題無約束化，從而建立起適合於該問題的遺傳演算法優化模型，將其計算結果分別與迭代前進法和隨機最優控制理論進行了比較；結果表明，採用該方法編制的基於結構計算的遺傳優化程序操作靈活，能很好的滿足施工和設計要求。The optimizing theory is introduced to the calculation of the stayed - buckle - cable forces in the process of segment hosting construction of the steel - pipe arch and adjusting construction error. the calculated optimum cable forces with high precision can always guarantee the inner forces and the structure distortion in safe state and ensure the line shape of the arch according with design objective
同時將優化理論引入到鋼管混凝土拱橋拱肋架設和調整中的扣索索力計算中，使計算出的索力既能確保結構的受力狀態和變形始終處在安全范圍內，又能保證架設和調整后的拱肋線形符合設計期望，而且索力的計算精度較高。Realize the earth has magnetic field lines that loop out into space from the northern hemisphere to the southern hemisphere ， arching away from the earth and it is those magnetic field lines that organize the solar storms that cause it to create auroras
要知道，地球上的磁場線以環形在空間從北半球拋向南半球，呈拱形覆蓋于地球上空，而正是這些磁場線對于太陽風暴的作用形成了極光。To investigate the function of concrete slabs and the effect of concrete construction on narrow composite space truss flat arch bridges, and to compare the results of linear analysis with the results of nonlinear analysis, finite element analysis of a typical engineering is undertaken
摘要為研究混凝土面板的作用以及混凝土施工對窄扁拱形組合網架橋的影響，比較線性與非線性分析結果之間的差別，對一典型工程進行有限元分析。分享友人