框限作用 的英文怎麼說
中文拼音 [kuàngxiànzuòyòng]
框限作用
英文
box effect-
It provides strong basement for the research of design. the method of structure analysis commended by this paper is based on nonlinear finite - element, diathermanous and elasticity mechanics. it found the model of a steel beam pressed by gravity and temperature in the condition of indoor fire
本文提出的結構分析法是在大量參數分析的基礎上，以非線性有限元、傳熱學及彈性力學為基礎，利用ansys軟體，建立一個鋼框架梁在室內局部火災條件下的傳熱模型與在重力荷載及溫度荷載共同作用下的受力模型。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。Based on tests of nine 1 / 2 - scaled model slabs under vertical loads, the paper analyzed load - deformation curve and proposed limit value of height - width ratio under axial loads. 2. based on aseismic tests, the paper put forward a model of concrete frame, silica brick and a combination of the two, proposed that the silica brick works as a 45 compression bar, analyzed the factors which may influence bearing capacity of the slab and advised a formula including the numbers of bays and of storeys of the frame
通過對墻板模型的抗震性能試驗研究，建立了由鋼筋混凝土框格、砌塊以及兩者協同作用三個部分組成的承載力極限狀態下的理論簡化計算模型；提出了墻板中填充塊等效斜壓桿寬度按45度計算的統一量化標準；分析了影響墻板承載力的主要影響因素，給出了表達墻板框格層數和跨數不同的斜截面承載力實用設計計算公式。Though much progress has been achieved in previous study, there still remains a lot to be studied and perfected. the thesis is devoted to study on the multi - ribbed slab wall, the main bearing member in mrss, including its mechanism, failure mode, aseismic capability, mechanical models, ultimate bearing capacity and aseismic design based on control. the paper mainly accomplished such work as follows : 1 ) based on test research on multi - ribbed slab wall, the paper proposed the member ' s failure modes under horizontal loads, analyzed the co - performance between the inner frame and the infilled silica bricks and that between the slab and the outer frame, discussed the wall ' s bearing capacity, rigidity, deformation, ductility and energy dissipation ability in different modes, and put forward a simplified mechanical model of the slab wall under vertical loads
本文針對密肋壁板結構的主要受力構件? ?密肋復合墻體為研究對象，就其受力機理、破壞模式、抗震性能、三階段力學模型、極限承載能力以及基於控制的抗震設計方法等進行了較為詳細的研究，完成的主要工作有： 1 ）通過對密肋復合墻體在水平低周反復荷載和單調荷載作用下的試驗研究，提出了墻體的主要破壞模式；分析了框格與內部填充砌塊、墻板與外框的共同工作的受力特點；探討了不同破壞模式情況下墻體的承載能力、剛度、變形、延性、耗能等抗震性能，並給出了豎向荷載作用下密肋復合墻體的簡化力學模型。This paper, in allusion to damage of expansion joint of bridge, introduces a sort of new structure of jointless device - semi - integral abutment jointless bridge, and establishes model of general structure finite element of this bridge, and in details analyses its qualities of stress. the model considers the interaction of superstructure - substructure - soil. resistance of the soil behind abutment adopts still soil pressure and elastic resistance when the temperature rising, but active soil pressure when dropping. analysis of qualities stress of bridge includes of action of dead load, car load, temperature load of season character. taking an 100m length pc semi - integral abutment jointless bridge as instance, the paper establishes the model of plane frame by applying large common software - anasys, and analyses it by elastane and large deformation to imitate character of stress and deformation of general bridge. at the same time corresponding models of finite element of joint bridge and integral abutment bridge are established, and unique stress and performance of structure of semi - integral abutment jointless bridge are researched by comparing and analysing character of three different models under same loading, and controlling factor of design and constitution are generalized. in conclusion, for semi - integral abutment jointless bridge, on one hand shear, moment and deflection of the main beam and axis force of substructure are approximate with that of joint bridge, and integral stifmess of structure is increased and damage of expansion joint is eliminated, on the other hand there is axis force in main beam, shear and moment of substructure are bigger than that of joint bridge. in all this type of jointless bridge has rational stress and is worth of application and popularization
半整體式橋臺無縫橋梁計算模型考慮了上部結構-下部結構-土的共同作用；臺後土抗力升溫時採用靜止土壓力加彈性土抗力，降溫時採用主動土壓力；分析橋梁受力性能時考慮了結構自重、車輛荷載和季節性溫變荷載的作用。以一座橋長100mpc半整體式橋臺無縫橋梁為實例，採用大型通用軟體ansys建立平面框架模型，進行彈性、大變形分析，模擬全橋受力和變形特點；同時建立與此對應的有伸縮縫橋梁和整體式橋臺無縫橋梁有限元模型，通過三種橋型同步加載對比分析，研究半整體式橋臺無縫橋梁獨特的受力特點和結構性能，總結其設計控制因素和構造要求。通過本文研究知：半整體式橋臺無縫橋梁主梁的剪力、彎矩、撓度和下部結構的軸力與梁式橋相近，結構整體剛度增大，併除去了伸縮縫病害；但主梁增加了軸力，下部結構剪力、彎矩較梁式橋大；綜合分析是一種受力合理有實踐和推廣價值的橋型。( 2 ) if secondary moment is taken for one kind of modulation of moment and there are the same, the effect of secondary moment on the modulation of moment becomes bigger with secondary moment becoming bigger. if prestressed frame can not complete full redistribution of internal force, ultimate load may put off and put up because of secondary moment. total coefficient of modulation of moment also is bigger
（ 2 ）如果把次彎矩看著是對框架的一種彎矩調幅，在相同的相對受壓區高度下，次彎矩越大，次彎矩調幅作用越強；如果結構不能實現完全的內力重分佈，則次彎矩能夠延緩截面極限承載力的到來，提高結構的極限承載力，結構總的彎矩調幅系數也隨著次彎矩的增大而增大。First, based on a field large - scale dynamic soil - box foundation - frame structure interaction system in hunan university, a 3 - d finite element model and a 2 - d lumped mass model are established in this paper
本文針對湖南大學建立的野外大比例尺土-箱型基礎-框架結構動力相互作用模型，首先建立了兩種分析計算模型:三維實體有限元模型和二維集中質量模型。In the frame of gcm, by introducing the chemical potential of baryons in this paper, we have found an effective method to study some properties of tt meson in a nuclear matter with finite density
在gcm理論框架下通過將化學勢引入雙定域場和有效作用量，本文找到一種有效的方法研究介子在有限密度核物質中的一些性質。The floor of the high - rise frame structures is very suppleness when the frame structures subjected to the vertical seismic actions, it is impossible to confirm that each member has the same displacement in the same floor, so it is impossible that the summation of axes stiffness of each vertical member represent the global vertical stiffness of the frame structure
高層建築框架結構在豎向地震作用下，樓板在豎向剛度是很小的，一般不予考慮，認為相對無限柔性，而梁的剛度也是有限的，不可能保證各豎向構件在同一樓層豎向位移相同，因此不能簡單地用各豎向構件軸向剛度之和來代表結構的總豎向剛度。The three frames are category frame without upgrading seismic - measures and earthquake - design - level, category frame of higher seismic - measures and category frame of higher earthquake - design - level. then, the author carries out nonlinear dynamic analysis on three frames under intermediate earthquake action and rare earthquake action. the results show as follows : ( a ) the performance of the two category frames of higher seismic - measures or higher earthquake - design - level are much better than that of category frame ; ( b ) the earthquake - design - level of higher earthquake - design - level category frame is upgraded by 50 percent, which is a high limit that is adopted by foreign codes
結果表明：按照提高抗震措施等級設計的乙類建築框架和按照提高地震力設計的乙類建築框架在地震作用下的反應都明顯好於僅按丙類建築進行抗震設防的框架；提高設計地震力的乙類建築框架的設計地震力提高幅度為50 % ，與國外重要建築地震力提高幅度相比已經是一個上限水準，但分析結果仍然顯示，這樣設計出來的乙類建築框架，無論是在中震還是在大震作用下，其表現出來的抗震性能都不及提高抗震措施等級的乙類建築框架。Under the horizontal earthquake action and wind force, aim at " the pure frame structure with rectangle columns ", " the pure frame structure with special - shaped columns ", " the frame - truss structure with special - shaped columns " and " frame - shear wall structure with special - shaped columns ", earthquake action analysis was done by the spacial finite element method through the changes structural parameter. analyzing systematically " structure vibration mode ", " vibration period ", " structure lateral rigidity ", " seismic action force ", " seismic response force ", " floor seismic shear force ", " lateral horizontal displacement of structure " and " members internal force ". results indicate : ( 1 ) based on equal area, the special - shaped columns replaced the rectangle columns, the structural lateral rigidity enlarges, the lateral displacement minishes obviously, the earthquake response increase slightly, the biggest increasing amount of frame columns axis - compress ratio is smaller than 0. 08. the whole aseismic performance of structure has improved ; ( 2 ) when the section ' s length and section ' s thickness ratio of special - shaped columns is smaller than 3. 6, the structure benefits to resist seismic action ; ( 3 ) the angle of horizontal seismic action with the whole coordinate is 0 degree, structure earthquake response is bigger, belonging to a control factor of structure aseismic design ; ( 4 ) the frame - truss structure with special - shaped columns and the " a " - brace has the biggest lateral rigidity ; ( 5 ) the frame - shear wall structure with special - shaped columns have bigger lateral rigidity and smaller displacement, members internal force enlarged just rightly, have much superiority of resisting seismic action ; ( 6 ) in the higher seismic fortification criterion region ( 8 degree of seismic fortification intensity ), aseismic disadvantageous building site ( iii type site ), adopting special - shaped columns structure system, should reduce possibly the building ' s self - weight in order to reduce the earthquake response ; ( 7 ) the response spectrum method of computing seismic response and the time - history analysis method have similar analysis result
西安理工大學碩士學位論文在水平地震作用下，並考慮風荷載組合，分別對「矩形柱純框架結構」 、 「異型柱純框架結構」 、 「異型柱框一析架結構」及「異型柱框-剪結構」等四種結構體系，通過改變結構參數，運用空間有限元方法，進行地震作用計算。系統地分析研究「結構振型」 、 「振動周期」 、 「結構側向剛度」 、 「結構地震反應力」 、 「樓層地震剪力」 、 「結構側向位移」 、 「層間位移角」 ，以及「構件內力」 。結果表明:在等面積原則下，異型柱代換矩形柱后，結構剛度增大，側向位移明顯減小，地震反應力略有增加，框架柱軸壓比最大增幅小於8 % ，結構整體抗震性能有所提高;當異型柱肢長肢厚比小於等於3 . 6時，結構有利於抗震;水平地震作用力與整體坐標夾角為0度時，結構地震作用效應較大，屬結構設計的控制因素之一;異型柱框一析架結構採用「人」字斜撐，側向剛度大於「八」字斜撐和「人一八」字混合斜撐;異型柱框一剪結構側向剛度大、位移小，構件內力增大適中，是一種抗震性能優越的結構體系:在抗震設防烈度較高地區（ 8度）和抗震不利的建築場地（ m類場地） ，採用異型柱結構體系時，應盡可能減輕結構自重，降低地震作用力;分別採用「振型分解反應譜」法和「時程分析」法進行地震作用計算，兩種方法所得結果基本一致。It is studied in this paper by large - scale universal program ansys the problem about geometric non - linear effect on earthquake - resistant behavior of multi - storey and highrise concrete frame structure under strong - motion earthquake and is also analyzed in full spatial self - bracing function which is ignored by planar model of multi - storey and highrise concrete frame structure
本文主要運用大型通用有限元程序ansys研究幾何非線性效應對多高層混凝土框架結構在強震作用下抗震性能的影響問題，另外，對多高層混凝土框架結構取平面模型所忽略的空間相互作用也詳加分析。Neural networks technology is applied to build the complex non - linear relationship between the anti - shear capacities of the reinforced concrete abnormal joints under low reversed cyclic loading and the main factors. back propagation neural networks model are build to predict the anti - crack capacity and bearing capacity. 3
利用神經網路方法研究了低周反復荷載作用下的鋼筋混凝土框架異型節點抗剪承載力與各主要影響因素之間復雜的非線性關系，並利用bp神經網路分別建立了該節點的抗裂承載力預測模型以及抗剪極限承載力預測模型； 3Steel frame with welding joint easily occur brittle collapse because of having a low ductility at joints then ， a semi - rigid connected steel frame has large the energy absorption capacity which can resist dynamic loads and the using steel qualities of bracing system and joints are small so adopting a semi - rigid jointed steel frame is economical and stable but for semi - rigid connections are complex and variable ， in conventional analysis and design of steel structures ， it is usually assumed that the connections between columns and beams are either rigid or pinned the analysis of steel frames adopting the assumption can simplify the procedure of analysis and design ， but cannot precisely reflect structural practical circumstance and the errors of calculating results are large ， even ， get incorrect conclusions semi - rigid connection was referred to in chinese code for design of steel structures ( 2001 ， 10 ) ， however ， it isn ’ t specified how to apply semi - rigid joints in design in fact it cannot be carry out the purpose of the paper give a calculating method that accords practical engineering and easily put into effect worthwhile it is going to promote the development of semi - rigid jointed steel frame in design and heighten structural stability in the paper ， at first some commonly employed methods for the modeling of connection behavior are introduced richard abbott function modeling of connection is adopted for extended end plate bolted connection by the 34 test data comparing to regression analysis indicate richard - abbott function modeling of connection represents an excellent fit to test data then after a semi - rigid joint behavior can be modeled as a finite stiffness rotation spring ， base on rotation and displacement equation derive the element stiffness matrixes with semi - rigid connections where the effects ofj ointed flexibility geometric non - linearity and shear forces in the connection deformations have been considered in and fixed - end forces are modified finally, a program for calculating semi - rigid with incremental - iterative method has been
本文的目的就是為半剛性連接鋼框架的設計提供一種既符合工程實際又簡便易行的計算方法，供規范使用過程的補充、延伸或參考；同時，也將促進半剛性連接鋼框架設計技術的發展，為提高結構安全性能、節省工程成本發揮應有的作用。本文首先介紹了常見的幾種應用較為廣泛的樑柱連接彎矩轉角關系模型，在分析比較的基礎上，選用richard ? abbott函數模型作為外伸端板連接彎矩轉角關系模型，通過對34個外伸端板連接的實驗數據與回歸分析得到的參數比較可知，經回歸分析得到的此模型參數與實驗數據符合較好。然後用彈簧表徵連接點的轉動剛度，根據梁的轉角位移方程推導出半剛性連接的剛度矩陣，在單元剛度矩陣中考慮了節點柔性、幾何非線性和剪切變形的影響，並對固端力進行了修正，最後用增量迭代法編制有限元程序進行計算和分析。Therefore, it is no time to delay that refining the design method of tall buildings. in this paper, tall frame and layered soil are treated as a single continuous system and an interactive analysis method is presented using finite element method and finite layer method. the settlement of foundation and the internal force of the frame are calculated with different stiffness of the superstructure
本文基於共同作用分析法研究高層框架和樁基礎的設計，即將高層框架與樁基礎視為一個統一的整體，採用有限元和有限層法進行共同作用分析，研究了上部結構剛度變化等因素對基礎沉降與框架內力的影響，並與常規設計法進行了比較分析，為改進和提高框架結構設計的安全和經濟提供了依據。At the same time it has the shortcoming of complex mechanics analysis. in this thesis we mainly discuss the structure behaviors of the mega structure. firstly considering the differences between mega - frame and normal - frame, that is the influence of rigid zone and shearing type deformation are considered. a computer program for calculation of mega - frame structures based on element stiffness matrix to members with rigid zone considering shearing type deformation has been written and some of mega - frames have been calculated by using the program
首先，根據巨型框架與普通框架的主要區別，採用帶剛域桿件考慮剪切變形時的桿單元模型，利用fortran語言編制了巨型框架結構線彈性有限元靜力分析程序，並利用該程序對多個巨型框架結構進行了計算，分析了巨型框架結構的靜力性能，深入研究了結構在豎向荷載和水平荷載作用下的傳力機理、力學特性和變形特點。Based on the elastic and plastic mechanics, using the finite - element analysis, the nonlinear finite model of the beam - to - column is established according to the american code. the model involved geometry, material nonlinear and friction. the response of beam - to - column web moment connections under monotonous load is researched on
本文在彈性力學和塑性力學的基礎上，利用非線性有限單元法，建立了考慮幾何非線性、材料非線性以及摩擦等參數的樑柱腹板連接的非線性有限元模型，模擬研究了鋼框架樑柱腹板連接在單向荷載作用下的反應。In the analysis of this paper, tall frame is divided into space beam element, layered foundation is divided into finite layer, and the stiffness of a single pile is determined by q - s curve
本文分析時將空間框架離散為空間桿件單元，將成層地基離散為有限層元，採用q - s曲線確定單樁剛度，建立了考慮空間框架與樁基共同作用的有限元和有限層模型。The research of this connection under monotonic and cyclic loading is simulated using powerful finite element analysis software. the damage mechanism under the moment loading is studied and the hysteresis curve is obtained. at last, the hysteresis model and the parameter of the model is defined to provide academic and numerical foundation
採用大型有限元通用軟體模擬該種連接在單調荷載和周期荷載作用下的試驗，研究了該連接在彎矩荷載作用下的破壞機理、做出了該連接的滯回曲線，並確定了滯回模型和模型參數，為研究半剛性連接鋼框架在地震荷載作用下的性能提供理論依據和實驗基礎。And contracting - cost hypotheses, signaling hypotheses, tax hypotheses and maturity matching hypotheses ( also called immunization hypothesis ) have been well - known, while tobin ’ s q, the grow, the asset maturity, the size, the quality, the marginal rate and the non - debt tax shield are known as the main determinants to corporate debt maturity structure
這些理論分別在各自的框架內解釋了影響債務期限選擇的決定性因素。總體來看，成長機會（包括托賓q值和增長機會） 、資產期限、公司規模、公司質量、邊際稅率以及非債務稅盾等因素對債務期限結構的選擇起著決定性作用。分享友人