柱下機構 的英文怎麼說
中文拼音 [zhùxiàjīgòu]
柱下機構
英文
base of mast mechanism-
On the basis of expound the theory of building exterior - protected construction energy consumption and the gene of influence the building energy, set up mathematics model, this article discuss the mechanism of dispelling the heat of the buildings " thermal bridge and the complication that influence it, and then synthetic analysis and calculate the influence range of building thermal bridge in exterior - protected construction column thermal bridge to the building outer wall get the conclusion that when the construction column can satisfy the building stress - area, in bulgy construction column dispel less heating than out bulgy construction column. but if the pole stuck out more than 100mm, in bulgy or out bulgy make no difference
本文在闡述建築圍護結構耗熱原理以及影響建築能耗因子的基礎上，採用數值模擬方法，探討了建築熱橋傳熱的基本機理和影響建築熱橋傳熱的因素，進而對建築熱橋在圍護結構傳熱中的影響范圍進行了綜合分析和計算，研究了構造柱熱橋型式對建築外墻能耗的影響，得出了構造柱在滿足建築受力面積要求的情況下，內凸構造柱較外凸構造柱略能減少散熱量的結論，但是凸出過大（ 100mm ）無論內凸還是外凸對建築耗熱都沒有大的差別。This drilling adopts crank connecting link and walking beam percussion mechanism, which make the drilling possess two percussive functions, normal drilling takes connecting link impact as main mode, when encountering special situation and the connecting link impact can not drill, it can transform into hoisting impact, the stroke length can be modulated, it realizes automatic percussive drilling due to continuous operating of connecting link percussive mechanism, these can enhance drilling efficiency and relieve labor intensity ; it adopts pumping reverse circulation to drain slag, which not only resolves the drilling difficulty in special stratum such as pebble and gravel stratum and hard stratum, but also resolves the problem that the percussive drill ' s efficiency is low ; it adopts spur gear differential mechanism as double cylinders lazy tongs of main hoist, which not only ensures the balance state of drilling tool, but also reduces the mechanical design, and reduces the cost ; the bottom plate traveling motion of this drilling machine adopts walking type ; the drilling tower adopts hydraulic pressure uprising, and reduces the assistant operating time
該鉆機採用曲柄連桿、游梁式沖擊機構，使鉆機具有兩種沖擊功能;正常鉆進以連桿沖擊為主，遇到特殊情況，用連桿沖擊不能鉆進時，可轉為卷揚沖擊，沖程可調，因連桿沖擊機構連續工作，所以實現了自動沖擊鉆進，可提高鉆進效率，減輕勞動強度;採用泵吸反循環的方式排渣，既能有效解決卵礫石地層、堅硬地層等特殊地層鉆進的困難，又很好地解決了沖擊鉆機效率低下的問題;採用直齒圓柱齒輪差速機構作為主卷揚的雙筒同步機構，既保證了鉆具處于平衡狀態，又大大簡化了該機構設計，降低了成本;該鉆機底盤行走移位採用步履式;鉆塔採用液壓起立，減少了輔助作業時間。Meanwhile, by using delaminating combination finite element method and macro finite element analysis methods, the paper present two kinds of analysis programs. based on the aforementioned analysis program, the failure form, distribution of plastic hinge, load - carrying capacity, displacement and ductility characteristics are investigated to reveal the failure mechanism and the failure proceeding under seismic effects. the results are in good agreement with the test results, indicating the precision of the aforementioned two programs is satisfiable to the practical engineering design
分別採用分層組合式有限元和宏觀有限元分析方法，編寫了2種鋼筋混凝土中高帶邊框柱剪力墻結構的彈塑性有限元分析程序，同時利用上述2種分析程序，研究了模型結構的破壞形態、塑性鉸的分佈、承載力、位移及延性性能等特性，探討了這類結構在地震作用下的破壞全過程與破壞機理，得到其主要受力特性和抗震性能的一般規律，所得結果與試驗值吻合較好，表明上述2種程序分析結果的精度均可滿足實際工程的設計要求，因此可用於這類結構的抗震性能分析與設計。It is an inelastic analysis during the linear monotony loads. it can show the actual yield mechanism and the appearance sequence of the hinge, find out the weakness of the structure and gain the pushover figure ( floor - shear diagram and element - shear diagram )
進而揭示出在罕遇地震作用下結構實際的屈服機制，各塑性鉸的出現順序，找出結構的薄弱環節，確認結構設計中「強柱弱梁」的設計原則，得出push - over圖形（層剪力圖形及構件剪力圖形） 。Pause in lay mines below silvan system, the dollar can change gold and each country to execute adjustable pin exchange rate is made, it is the two big pillar that make system of this one money, international monetary fund is the central orgnaization that maintains this one system to run normally, it has supervisory international exchange rate, offer money of international credit, harmonious international to concern 3 big function
在布雷頓森林體系下，美元可以兌換黃金和各國實行可調節的釘住匯率制，是構成這一貨幣體系的兩大支柱，國際貨幣基金組織則是維持這一體系正常運轉的中心機構，它有監督國際匯率、提供國際信貸、協調國際貨幣關系三大職能。In this thesis, four types of steel beam - rectangular cfst column connections, including normal welded flange plate ( wfp ) connection, bolted flange plate ( bfp ) connection, stiffened end plate ( sep ) connection and double split - tee plate ( dst ) connection, were designed based on the configuration of steel frame connection. total 8 models, 2 models of each kind of connections were tested under low - reversed cyclic loading at the end of cfst columns. the relationships between force and displacement at the end of columns, the relationships between the moment and rotation of the joints, degradations of strength and stiffness, ductility, failure mechanism and failure characteristics of these four connections under different axial - compression ratios were presented
本文借鑒鋼框架節點構造，設計了四種類型矩形鋼管混凝土柱與鋼梁連接節點，包括常規栓焊（ wfp ）節點、翼緣全螺栓連接（ bfp ）節點、雙t板連接（ dst ）節點以及加勁端板連接（ sep ）節點，進行了四類節點8個模型試件在柱端低周反復荷載作用下的抗震性能試驗研究，比較了不同軸壓比下節點的滯回性能、強度與剛度退化、延性、破壞機理與破壞特徵，主要結論有： 1 、節點的位移滯回曲線與轉角滯回曲線為塊型分佈，沒有或略有捏攏現象，耗能能力強； 2 、軸壓比對節點滯回曲線有顯著影響，全部節點都有顯著的剛度退化； 3 、位移與轉角骨架曲線在峰值荷載後有較長的水平或下降段，具有良好的延性性能； 4 、從整體抗震性能上看，翼緣全螺栓連接節點、雙t板連接與加勁端板連接節點都優于常規栓焊節點，可在實際工程中加以推廣。On the field construction of storage tank, the hoisting structure of electric block, by means of mechanics analysis and computation, can determine the amount which the electric block requires, the size of its side column and central column and its connecting forms, thus eventually reasonably allocating construction tools and decreasing the consumption of assistant materials only when the construction security is guaranteed
摘要儲罐現場施工中，電動葫蘆提升結構可通過力學分析、計算，確定所需電動葫蘆的數目、提升組合結構中邊柱和中心柱的規格尺寸及其連接形式，達到在保障施工安全的前提下合理配置施工機具、減少輔助材料消耗的目的。In this paper, we designed the structure of the gear and rack in this actuating mechanism, elaborated the theory of its formation, and deduced the profile function and gearing function of the gear and rack. furthermore, we deduced the inherent radius of going around a turn under certain circumstance, the condition of the correct gearing and the continuous transmission. in order to make the mechanism move steady, we designed the derivation mechanism and manufacture the modle
本文對該傳動機構中的漸開線柱齒鼓形齒輪和空間齒條的結構進行了設計，並給出了齒輪和齒條的成型原理，推導出了漸開線柱齒鼓形齒輪和空間齒條的齒廓參數方程、嚙合方程;進一步分析並確定了漸開線柱齒鼓形齒輪、空間齒條在給定嚙合傳動條件下所能實現的固有轉彎半徑和運動約束條件，並對其側隙及效率進行了計算和分析。The stationary slewing crane has such characteristics as simple structure, convenient operation, high efficient, etc. it is widely used for the feeding and laying off of the workpiece of production line, assembly line and lathe in the workshops, and the material swinging operation in such places as the warehouse, quay, etc
定柱式旋臂起重機定柱式旋臂起重機，具有結構簡單操作方便節能高效等特點，廣泛用於工礦車間的生產線，裝配線和機床的上下工件，以及倉庫碼頭等場所的物料吊運作業。It ' s an ideal structural system and has multi - earthquake resistance ability because of a great deal of slabs removed in floors above the transfer - story amended the lateral stiffness of the stories near the transfer - story. based on the available references, the five - spring line element, the three - spring line element and the multiple vertical - line - element model are introduced to model special column, beam and shear - wall, the relevant stiffness matrixes are deduced and the restoring - force models are gaven to deep into the elasto - plastic seismic characteristics of the structure. acording to the results of shaking table test and elastic finite element analysis, a new making model melhod is presented in which uses the linear and the nonlinear element and the assumption that the floor is infinitely rigid in different areas
為進一步研究這種復雜高層建築結構的彈塑性性能，本文在國內外現有研究的基礎上，提出利用五彈簧桿元、三彈簧桿元及多豎線單元模型分別模擬空間柱、梁和剪力墻，推導了相應的剛度矩陣並給出了恢復力模型；結合試驗研究和精細有限元分析的結論，提出線性和非線性單元相結合，剛性樓板假定和彈性樓板相結合的建模方法，較好地解決了空間結構彈塑性分析中佔用計算機資源較多的問題；接力大型有限元分析程序? ? ansys ，在上述建模思路的指導下建立了結構的空間非線性分析模型，進行了空間三維彈塑性時程分析。With computer imitation and laboratory physical analog as the lead and on the basis of test ore blocks and industrial blownoff - ore rock tests, study on the enlarged - structure parameters of sublevel caving in meishan iron mine was carried out, which included single tests of drilling and blasting parameters ， transition sublevels and equipment complementation. the timely popularization of this enlarging structural parameter technique has greatly improved the performances of the sublevel caving mining and promoted the technological advance of underground mining
梅山鐵礦加大無底柱分段崩落法采礦結構參數研究，採用計算機模擬、實驗室物理模擬為先導，試驗礦塊、工業放出體試驗為基礎，分別進行了采場鑿巖爆破參數、過渡分段、設備配套等單項試驗，並在全礦及時進行了推廣應用，極大地改善了礦石開采過程中的各項指標，促進了地下礦山開採的技術進步。Full - range of loading to the reinforced concrete columns with reinforced concrete cover during second stage of loading is analyzed by computer - test nonlinear developed in the text, in consideration of the condition that they are not unloaded or partly unloaded. based on the analysis, a simplified method is put forward in the paper to calculate the load capacity of cross - section of axially and eccentrically compressive rc columns with reinforced concrete cover. a theoretical calculation method is given to the practical engineering
本文針對實際工程中經常採用的外包鋼筋混凝土加固鋼筋混凝土柱的加固方法，考慮到實際加固工程是在不卸載或部分卸載情況下進行，利用計算機對外包鋼筋混凝土加固柱二次受力后進行非線性全過程分析，在此基礎上提出外包鋼筋混凝土加固柱軸心受壓和偏心受壓正截面承載力的簡化計算公式，為實際工程中外包鋼筋混凝土加固柱的結構設計提供了理論計算方法。Taking the natural frequency arid the ratio of frequency drop as input characteristic parameters, crack damage in the cylindrical supporting shell of a portal crane is diagnosed and its length and position are forecasted, applying finite element emulation and artificial neural network technologies
摘要應用有限元模擬技術和人工神經網路模型，以反映結構損傷程度的固有頻率和損傷的頻率下降率作為神經網路輸入的特徵參數，對門座起重機筒形支柱上出現的裂紋損傷長度和位置進行了綜合診斷和預測分析。Overrunning clutch as output mechanism of pulse - type stepless transmission is friction roller - type mainly. because roller and output shaft contact with a higher pair, surface of output shaft appears groove mark obviously when repeated driving
脈動無級變速器的輸出機構? ?超越離合器，目前主要是摩擦滾柱式超越離合器，由於滾柱與輸出軸之間以高副接觸，往復驅動下輸出軸表面明顯出現溝痕。Research has been done on the calculating methods of lateral stiffness and bearing capacity of the frame. according to experimental studies, finite element analysis and theoretical analysis, it develops to calculate lateral stiffness of frame with special - shaped columns of greater height - width ratio by using frame with rigid zones, and considering shear deformation of beam and columns. without considering the torsion of the whole structure, assuming the special - shaped column in the rc frame is flexural failure under uniaxial eccentricity force, putting forward the calculation method of flexural strength of special - shaped columns and the shear strength in a story for r. c
對異形柱框架分別按普通框架和壁式框架進行分析，並與空間有限元分析結果和試驗結果進行比較，提出了異形柱框架結構側向剛度的計算方法；在整體結構不產生扭轉且異形柱為彎曲破壞的假定下，提出了異形柱的受彎承載力及受剪承載力計算公式；提出了根據異形柱框架結構的破壞機構確定其樓層受剪承載力的方法。Therefor, in the light of theory and methods of karst hydrogeomorphology and the knowledge of transformation, balance and variation of matter and energy in karst drainage basin, we can examine stone forest within a specific scope of time and space, and reveal the mechanism and the development model of stone forest with the help of the principle of the mutual response processes among base - level, water flow and forms. just based on the understanding above, the paper, with a special reference to the lunan stone forest which is the best developed one in china, discusses the hydro - geomorphlogical structure of the bajiang river, geomorphological types and spacial distribution feature of the stone forest, and studies the erosion rate on the top of stone forest, soil erosion rate, sub - soil dissolution rate and their combined influences on the evolution of stone forest, furtherly brings forward and demostrates the " tri - level erosion " mechanism for the development of stone forest
正是基於這種認識，本文以我國石林發育最完美的路南石林為研究對象，研究了巴江喀斯特流域的水文地貌結構特徵、石林的形態類型及其空間分佈特徵；探討了石柱頂部的剝蝕速率（ a ） 、表土剝蝕速率（ s ） 、土下溶蝕強度（ c ）及其組合對石林發育的影響，提出並論證了路南石林發育的「三重剝蝕」機制；通過對石林發育必備條件的剖析，以及對巴江喀斯特流域演變階段的定量研究、水文地貌系統的空間耦合分析，探討了巴江喀斯特流域的演變與路南石林發育間的關系，並結合該流域的演化史，提出了巴江喀斯特流域演變與路南石林發育的模式。The new unit has following technical features : ( 1 ) the unit ' s load is balanced by means of the accumulator and hydraulic cylinder with special structure ; ( 2 ) the installed power of the unit can be reduced greatly by adopting the accumulator ; ( 3 ) variable frequency speed regulation ensures good energy saving effect, and the closed oil circuit requires less hydraulic oil ; ( 4 ) a bi - directional hydraulic lock in the oil circuit ensures the stability and safety of the operation of the pumping unit
新型機具有4個技術特點： （ 1 ）由於活塞柱塞式液壓缸的特殊結構和液壓蓄能器的配合使用，在平衡抽油機大部分載荷時，不需另外增加配重，可減小抽油機體積、質量和佔地面積； （ 2 ）抽油機下沖程時，與活塞柱塞式液壓缸相連接的蓄能器吸收能量，上沖程時儲存在蓄能器中的能量補充載荷上行所需的能量，大幅度降低抽油機裝機功率； （ 3 ）利用變頻容積調速節能效率高，閉式油路節省液壓油，同時大大減小液壓泵站的體積； （ 4 ）在閉式油路中採用雙向液壓鎖可使抽油機的啟停更加平穩、迅速，其工作的穩定性和安全性更好。But setting of strengthened floor will result in the sudden variation of structural stiffness and internal force, and will come into being weal story. the yield mechanism will difficultly " story column, weak beam " and " strong in resistance of shear force, weak in resistance of bending moment "
在風荷載作用下，設置加強層是一種減少結構水平位移的有效方法；但在地震作用下，加強層的設置將會引起結構剛度、內力突變，並易形成薄弱層，結構的損壞機理難以呈現「強柱弱梁」和「強剪弱彎」的延性屈服機制。Fire resistance of reinforced concrete columns is analyzed theoretically in this dissertation, combined with study on invalidation mechanism and control of reinforced concrete structures subjected to fire, which is one of the main projects of construction science and technology in hunan province. the main contents studied in this dissertation are summarized as follows. ( 1 ) the most familiar thermal and mechanical behaviors of concrete and reinforcing steel bar at elevated temperature over the world are summarized and compared
本文結合湖南省建設廳重點資助項目「火災荷載作用下鋼筋混凝土結構的失效機理與控制研究」 ，對鋼筋混凝土柱的抗火性能進行了理論分析與研究，主要內容如下: （ 1 ）對國內外使用較多的鋼筋、混凝土的熱工性能及熱力本構模型進行了總結和對比分析，找出了我國與其它國家分析時所使用模型的相同及不同之處。So, the method, that is, determining adjusting coefficient of moment capacity of column - to - beam according to actual reinforcement of beam, which have been adopted by framework of gradel intensity - category 8 and of grade 1 intensity - category 9 can effectively form advantageous energy - dissipation mechanism under intermediate earthquake and rare earthquake
因此， 9度一級和8度一級框架按梁端實配鋼筋確定樑柱抗彎承載力級差系數的方法能較為有效的引導框架在中震及大震下形成有利的耗能機構。分享友人