under axial loading 中文意思是什麼
under axial loading
解釋
在軸向載荷下-
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。 -
The experimental study and numerical simulation have been done aiming at the problems of dieless thin - walled tube forming under combinatory action of internal pressure and axial force and loading control stability
摘要針對內壓和軸壓共同作用下的薄壁管無模內高壓成形及加載控制穩定性問題進行了實驗及數值模擬。 -
Comparing experimental results with the numerical analytic results using the criterion, it is found that the criterion employs the axial deformations of bracing members as fatigue damage parameters and can be applied to real - time estimation of low - cycle fatigue damage of bracing members under a loading history - dependent random stale
研究結果表明：本文方法以鋼支撐軸向位移為損傷參量，能實時估算在隨機位移荷載下鋼支撐的低周疲勞累積損傷發展，並與試驗結果吻合較好。 -
The axial - symmetric ring - shaped interface crack problems are discussed under tension loading
摘要討論受拉伸載荷作用的軸對稱環形片狀界面裂紋問題。 -
( 2 ) based on deterioration model of owerage bond stress of beam reinforcement accounting for effect of axial compression ration and number of displacement loops, and stress - strain relationship of the concrete in the joint core accounting for effects of both softening and confinement, the modified compression field theory was employed to simulate behavior of the joint core under loading reversals. analysis by means of the program jap on the tested specimens in this paper and those obtained from other researchers produced consistent results
根據本文建立的考慮軸壓比和位移循環次數影響的梁筋平均粘結應力退化模型和考慮軟化效應、約束效應的核心區混凝土應力應變關系，通過在試驗中得出的節點核心區混凝土、箍筋、節點正面、背面柱筋在反復荷載下的受力特點，利用斜壓場理論模擬節點核心區在反復受力過程中的受力狀態。 -
In this paper, 31 specimens of concrete filled rectangular steel tube ( cfrst ) are tested under cycle loading, the main parameters are axial ratio, section height to width ratio and steel strength
考慮軸壓比、高寬比、混凝土強度等參數，進行了31根矩形鋼管混凝土壓彎構件滯回試驗。 -
Analysis of the ultimate loading capacity of tubular tt - joints under axial compression
管節點在軸向壓力下的極限載荷分析 -
In this thesis, the experimental research of the behavior of high strength concrete axial compression columns and eccentric compression columns under non - uniform temperature field are conducted. from the experimental analysis, the variational regularity of ultimate load capacity and deformation of high strength concrete compression - flexure members under non - uniform temperature field is obtained. the influences of different factors including temperature, stirrup contents, strength grade of concrete, pre - loading level, eccentricity and different loading - temperature paths to refractory capability of members are investigated
文中還對高強混凝土軸心受壓柱和偏心受壓柱在不均勻溫度場下的力學性能進行了試驗研究，通過試驗分析了高強混凝土壓彎構件極限承載力和變形在不均勻溫度場下的變化規律，考察了不同升溫溫度、箍筋用量、混凝土強度等級、預加荷載水平、荷載偏心以及荷載?溫度途徑等對構件耐火性能的影響，通過試驗量測，得到了構件的截面溫度場。 -
A large - scale triaxial apparatus is adopted for the tests. the tests are performed under three different confining pressures for each rockfill material, and three different kinds of axial loading is applied under each confining pressures. the rheology of the rockfill materials are presented and analyzed based on the test results, and the creep parameters are obtained
試驗採用大型三軸儀進行，每種堆石料進行了三種圍壓試驗，每種圍壓下又分三種軸向受力狀態，根據流變試驗結果分析了壩料的流變變形特性，得出了流變模型參數。 -
In this paper, the buckling behavior of cold - formed angle members is studied by non - linear finite element method. the influence of the width - thickness ratio of the single cold - formed angle column under axial load is analysed. the criteria of flexural buckling and torsional - flexural buckling for cold - formed egual - leg under axial loads is presented. according the calculating results of the ansys finite element method, the stability - coefficient formulas are simulated for the cold - formed loading single angle members of flexural buckling and torsional - flexural buckling
本文運用非線性有限元法對冷成型單角鋼的穩定性能進行了研究，分析了寬厚比對冷成型單角鋼軸壓桿穩定性能的影響，給出了等邊冷彎角鋼發生彎曲屈曲和彎扭屈曲的判斷條件，根據ansys有限元的計算結果擬合出了冷成型單角鋼軸壓桿在發生彎曲屈曲以及在發生彎扭屈曲時的穩定系數公式，在此基礎上得出了冷成型單角鋼軸壓桿在所有長細比情況下的穩定系數公式。 -
3. as for side web girder, the principle of minimum potential energy has been introduced. by assuming different displacement function, the force and stress formulae for flanges under uniform loading, horizontal axial force, or vertical concentrated force have been derived
對于邊主肋截面主梁，本文介紹了能量變分法，通過假定板不同的軸向位移函數，推導了懸臂梁在均布荷載、水平軸向力、豎直集中力作用下的微分方程和應力計算公式。 -
First, considering the change of stress conditions in excavation slopes by means of triaxial equipment, the triaxial tests of three kinds of stress paths of q3 and q2 loess, including lateral unloading, keeping mean normal stress changeless and conventional axial loading, is carried out under different water content and consolidation stress conditions
本文就黃土挖方高邊坡工程問題，首先在三軸儀上考慮邊坡開挖過程應力條件的變化，進行了q _ 3 、 q _ 2黃土不同含水量條件下圍壓卸荷、等p剪切及軸向加載三種應力路徑的試驗。 -
Pile foundation should not only bear axial loading but also bear lateral loading. the role mechanism of pile and earth is very complex under lateral loading
樁基除了承受軸向承載力還要承受水平荷載，在水平荷載作用下，樁與土的作用機理十分復雜。 -
Through the analysis of theoretical study a unified strength criterion of concrete under triaxial loading conditions has been established. at last, according to the analysis of theoretical study we can get the limit bearing capacity formula of the concrete filled steel tube short column subjected to axial compress
在此二公式的基礎上，得出鋼管的側壓力與混凝土強度提高系數的關系。綜合以上推出的公式，得到鋼管混凝土軸心受壓短柱的承載力公式。 -
In order to fully develop the theory of squeezed branch piles, in particular, the justification of its superior performance in terms of the bearing capacity and sinking displacement, we have derived the analytical formulas of the axial load and the strain at arbitrary depth ; based on existing static loading test results and research on belled pile, together with the analysis of on - site testing data, we have applied the expand theory on sphere holes to the computation of radial stress of squeezed branch piles under hole expansion ; taking the oil pressure of hole expansion in to account, we have find the a branch force under certain hole pressures, hence we can estimate the maximum bearing capacity of single piles ; we have introduced the experiential formulas for the bearing capacity of squeezed branch piles based on its stress characteristic and pile testing data ; we have also done numerical simulations of squeezed branch piles utilizing finite element method software ansys ; we have matched the simulation res ults with those of on - site basic load experiments, regenerating the distributions of stress fields and strain fields of squeezed branch piles, and from those distributions, we can determine the optimal distances between plates and piles
為了完善支盤樁的設計理論，探求支盤樁高承載力和低沉降量的內涵，本文推導出了支盤樁任意深度的截面荷載以及位移隨深度變化的理論公式；基於已有的靜載試驗成果及有關擴底樁的研究成果，從對現場測試數據的分析，將球形孔擴張理論引入到支盤樁擴孔時徑向應力的計算，考慮到擴孔時的油壓數據，求得某一孔壓下的支盤力，據此估算單樁極限承載力；同時根據對支盤樁的受力特點和試樁數據的分析，提出了支盤樁承載力計算的經驗公式；用有限元分析的方法，利用大型有限元分析軟體ansys對支盤樁進行數值模擬，並將模擬結果同現場的靜載試驗結果進行對比，再現了支盤樁在荷載作用下土中應力場和位移場的變化，根據應力場和位移場的變化范圍，指出最佳盤間距和樁間距；為支盤樁的設計和施工提供了一個可量化的設計依據。 -
The testing contents are as follows : 1. eight rc columns were tested first under cyclic lateral force and a constant load equal to 20 % of the column axial load capacity. the main parameters considered were the type of frp jacket and peak drift ratio where the lateral loading was interrupted
本學位論文針對上述問題開展了較為系統的研究，主要開展了以下工作: 1 .完成了8個大比例模型柱的製作和加固，並對其在控制位移下進行了擬靜力試驗。 -
The specimens of rpc filled in steel tube short columns were studied, and their characters of deflection were analyzed. the tested cures of loading - displacement relationship of rpc filled in steel tube short columns were given and the characters were discussed. a formula for predicting the ultimate bearing capacity of rpc filled in steel tube short columns under axial compression was derived from the limit equilibrium method
分析了鋼管活性粉末混凝土短柱的變形特點，模擬了鋼管活性粉末混凝土結構的三種加載方式，探討了該組合結構的工作機理，分析了試件受荷時的變形特點，給出了試件的實測荷載-變形曲線，並分析了套箍指標、加載方式等對鋼管活性粉末混凝土軸心受壓時的荷載-變形曲線的影響。 -
The main contents are followed below : ( 1 ) for the aim of knowing the characteristics of main factory building structure frame columns of large - scale thermal power plants, nine high strength concrete frame columns with high axial compression ratio and six slender ordinary strength concrete frame columns with high axial compression ratio were tested under low reversed cyclic horizontal loading for the very first time, and thus the influencing factors of normal section bearing capacity, such as concrete intensity grade, axial compressive ratio, slendemess ratio, the type of stirrups and stirrup ratio, etc, the anti seismic deformation capability of frame columns were acquired
本文主要研究的內容有： （ 1 ）首次針對火電廠主廠房結構框架柱的特點，對9個高軸壓比高強混凝土框架柱和6個高軸壓比普通混凝土框架長柱進行了低周反復水平加載試驗，獲得混凝土等級、軸壓比、長細比、配箍形式及配筋率等對框架柱的抗彎及抗剪承載力、抗震變形能力的影響因素。 -
An elastic - plastic and geometrically nonlinear finite element method is developed to analyze ultimate strength of h - shape steel columns under axial compressive loading. initial imperfections including residual stress due to hot - rolled and initial overall deflections of columns are considered. an experiment study of 21 h - shape steel columns with slenderness parameter of ranging from 40 to 120 is conducted to verify the theory results
本文通過彈塑性和幾何非線性的有限單元法理論分析，在長細比范圍在40 ? 120的21根國產h型鋼軸心受壓柱的承載力試驗中進一步證實了這一理論的合理性和有效性。
分享友人