溫度應力變化 的英文怎麼說
中文拼音 [wēndùyīnglìbiànhuà]
溫度應力變化
英文
variation in temperature stresses- 溫 : Ⅰ形容詞(不冷不熱) warm; lukewarm; hot; gentle; mild Ⅱ名詞1 (溫度) temperature 2 (瘟) acute ...
- 度 : 度動詞[書面語] (推測; 估計) surmise; estimate
- 應 : 應動詞1 (回答) answer; respond to; echo 2 (滿足要求) comply with; grant 3 (順應; 適應) suit...
- 力 : Ⅰ名1 (力量; 能力) power; strength; ability; capacity 2 [物理學] (改變物體運動狀態的作用) forc...
- 溫度 : [物理學] temperature
-
In the paper, not only such factors as reinforcing steel bar, various placing temperature of concrete in case of lift placements, lift thickness, time interval between lifts, the variation of elastic modules of concrete, heat of hydration, the temperature changes of environment but the effect of creep deformation and autogenous volume change on the temperature field and thermal stress field of reinforced concrete face - slab are considered
本論文在分析中,考慮了鋼筋、混凝土分層澆築、入倉溫度、澆築層厚、施工間歇、混凝土彈性模量變化、水化熱發散規律、外界氣溫等因素的變化及混凝土徐變和自生體積變形等因素對面板溫度場和溫度應力的影響。In the program, the effect of lamination placement, construction interval, elastic modulus change, thermal insulation change, surrounding temperature change, concrete creep and autogenous volume change on thermal stress are considered. and such temperature control measurement as water pipe cooling, heat preservation of the dam surface, the pouring temperature control, the overflow across the dam top during flood season can also be simulated by numerical method
該程序在編制過程中考慮了混凝土分層澆築、施工間歇、彈模變化、絕熱溫升過程、環境溫度的變化、混凝土徐變、自生體積變形等因素對壩體溫度場及溫度應力場的影響,同時也考慮了水管冷卻、壩體表面保溫、控制澆築溫度、施工汛期壩頂面過水等各種溫控措施的數值模擬。In this article, according to heat conduction theory, elastic creep theory and finite element theory, the temperature field and creep stress field in the arch dam during construction and operation are simulated and analyzed by means of three dimensional finite element relocating mesh method, and the distribution law of the temperature field and creep stress field in the arch dam during construction and operation are systematically studied, and according to the construction process of concrete arch dam, the effect of lamination placement, construction interval, elastic modulus change, thermal insulation change, surrounding temperature change, concrete creep and autogenous volume change on thermal stress in the arch dam are also considered
論文根據熱傳導理論、彈性徐變理論及有限元理論,用三維有限元浮動網格法對拱壩施工期和運行期溫度場、徐變應力場進行了全過程模擬分析,較為系統的研究了混凝土拱壩施工期和運行期溫度場、徐變應力場的分佈規律,在分析中按照混凝土拱壩施工過程,考慮了混凝土分層澆築、施工間隙時間、彈模變化、絕熱溫升過程、環境溫度的變化、混凝土徐變、自生體積變形等因素對壩體溫度應力的影響。In computation the effect of thermal insulation, elastic modulus, creep degree and autogenous volume change along with age, the progress of pouring by layer, work suspension in summer, the change of air temperature, heat preservation, water cooling, and water storage, by stages on temperature field are considered
計算中考慮了混凝土的絕熱溫升、彈性模量、徐變度和自生體積變形隨齡期的變化以及分層澆築、夏季停工、外界氣溫變化、表面保溫、通水冷卻及分期蓄水等因素對壩體溫度應力場的影響。This paper establishes a model simulating dam actual placing process and considering the non - continuity of initial temperature on the boundary of new and old concrete, daily air temperature change, concrete - placing temperature, hydration heat, heat insulation on boundary, water - storing process, placing intermission and curing with water. the calculation of stress field considers the concrete weight, static water pressure, thermal stress, different autogenous volume change between rcc and normal concrete, change of elastic modulus of concrete with age and creep action
考慮了乞今最為全面的初始條件和邊界條件,包括模擬壩體的實際升程過程,考慮了新老混凝土接觸面上的初始溫度不連續,逐日的氣溫變化,混凝土的入倉溫度,水化熱溫升,邊界保溫,水庫蓄水過程,澆築間歇以及灑水養生等因素;應力場的計算考慮了混凝土的自重,靜水壓力,溫度應力,常態混凝土與碾壓混凝土不同的自生體積變形,混凝土的彈性模量隨齡期的變化以及徐變的作用。The result indicate : the sx ( x axis radial ) thermal stress of concrete with low w / c ratio was more large than the sx thermal stress of concrete with high w / c ratio, the changement of the sx thermal stress of all concrete with different w / c ratio was less after adding mineral additives
結果顯示:低水灰比混凝土的sx ( x軸徑向)溫度應力,要大於高水灰比混凝土的sx溫度應力,摻入礦物摻合料后不同水灰比混凝土的sx溫度應力都變化不大。Since the temperature difference was most important parameters in thermal effects calculation, a combined temperature difference method considered year temperature difference and day temperature difference was put forward. with the combined temperature difference obtained from field tests, a lot of calculations have been done by finite element method ( fem ), considering of different structural measures. the law of displacement and stress in cshbb was presented and a relative displacement formula was deduced
在介紹小砌塊建築的溫度作用分析方法的基礎上對溫度作用計算中最重要的參數? ?溫差取值進行了探討,提出了同時考慮年溫差和日溫差影響的組合溫差取值方法;根據各種不同的組合溫差取值方法,結合現場實測數據給出了試點建築的組合溫差取值,並考慮了不同構造措施的影響,對試點建築進行了有限元的溫度效應計算;給出了小砌塊建築的位移變化規律和應力變化規律以及層間相對位移的計算表達式。In the view o6f micro mechanics and fracture mechanics, the mechanism of crack generation of mass concrete is expatiated, thermal stress on the interface between aggregate and cement paste of concrete and crack forming and developing is analyzed and the disciplinarian crack developing with temperature is given
本文從微觀力學和斷裂力學的角度,探討了混凝土結構開裂機理,分析了溫變過程中混凝土骨料與水泥砂漿界面上的溫度應力以及界面裂紋的萌生和擴展,給出了裂縫隨溫度變化的擴展規律。Recently, train is running faster and faster, and considering the stability and security, seamless welded rails ( swr ) are used as the train orbits gradually. the temperature of the rails will vary with weather. so that the rails may release the energy due to the metal characteristic of expanding or contracting with temperature, there is some badly distortion in the swr, worsly occurring accidents on expanding orbits. the portrait thermal stress ( pts ) of the swr should be monitored in some parts regularly, as to avoid such accident
近年來,隨著火車的提速造成的穩定和安全問題,軌道逐步轉為採用無縫焊接鋼軌,隨著鋼軌溫度的變化,無縫鋼軌可能會因為熱脹或冷縮的金屬特性並且在扣件阻力小而且路基較差的路段釋放能量,可能會發生鋼軌嚴重變形,更甚者會發生脹軌跑道等嚴重鐵道事故,為了避免發生如此事故,有必要定期對鋼軌的溫度應力進行檢測。This thesis set forth the method and process of designing to kiln tyre using robust method. when constructing the math model, it was thought of that there were structure parameters, such as the tyre " media and width, and a series of uncontrolled factors ( contact stress, bend stress stiffness and temperature stress, and the aim is to optimize the weight of the tyre )
在構建數學模型中,考慮了輪帶內徑、輪帶寬度等結構參數以及輪帶的允用接觸應力、允用彎曲應力、輪帶的彈性模量、輪帶內外表面的溫差等不可控因素,以輪帶的接觸應力、彎曲應力、剛度溫度應力為約束條件,以輪帶的重量最輕為優化目標,通過改變輪帶的寬度以及輪帶的外徑進行參數優化設計。Based on several actual cases, the temperature control measures for roller compacted concrete ( rcc ) gravity dam and arch dam such as structural jointing for construction ; lowering of concrete placing temperature ; water pipe cooling ; surface insulation ; inclined - layer placing etc., the measures to improve the material properties i. e. the application of micro - expanding concrete ; enhancement of material crack - resistance property and the requirement for the simulative analysis on both the temperature field and stress field as well as some problems concerned are summarized herein on the basis of the analysis on the material properties ; construction characteristics and the changing characteristics of the thermal stress of roller compacted concrete
摘要從碾壓混凝土的材料特性、施工特點、溫度場溫度應力的變化特點入手,結合幾個工程總結了碾壓混凝土重力壩、拱壩的分縫方式,降低澆築溫度、水管冷卻、表面保溫、施斜層碾壓等溫控措施,採用微膨脹混凝土、提高材料抗裂性能等改善材料性能措施及碾壓混凝土溫度場、應力場模擬分析的要求和應注意的問題。The test - force - ring is especially fit to monitor the strain of the structure real - time and accurately
因此,光纖光柵測力環可以實時精確地監測工程結構的溫度及應力變化狀態。The obtained results has been shown that the temperature field of sfrc pavement structure is non - linearly distributed along its thickness. the temperature which is close to the surface changes quickly, whereas slowly which is far. under the affect of temperature field, the temperture stress of sfrc pavement structure is also distributed non - linearly. the deflection and stress responses of sfrc pavement structure are waved declingly under the effect of shock load
計算結果表明:鋼纖維混凝土路面板結構的溫度場沿其厚度方向呈非線性分佈;在距路面表面較近的地方,溫度變化較快,而在距路面表面較遠的地方,溫度沿厚度方向的變化較為緩慢,整個圖形呈下凸形。鋼纖維混凝土路面板在上述溫度載荷的作用下,其溫度應力沿其厚度方向呈非線性分佈。This paper use the principle of mass concrete temperature raise and down will make concrete inside stress and strain cause change, and mixture ratio of concrete effect temperature stress, and the principle of equilibrium management model of china - pole, and the test curve of temperature in engineering, and the model experiment " anti - pull " together of mass concrete etc, to studied mass concrete anti - crack theory in design, construction and management
本文採用大體積混凝土溫度升降引起混凝土內部的應力和應變產生變化及混凝土的配合比對其溫度應力的影響原理、鏈桿平衡管理模型的計算原理、工程溫度實測曲線、大體積混凝土「抗?放」結合模型的試驗結果等研究了大體積混凝土在配筋設計、施工及施工管理過程中的抗裂措施。The expression of calculating the horizontal difference in temperatures t is provided. the equation of the super - length tall buildings with the temperature distribution is formulated, and also the relevant solving strategies are provided
給出了超長高層建築結構在各種溫度作用下溫度變形、溫度內力(應力)的數值范圍、分佈狀況及在對比模型中各構件中溫度內力、變形的變化情況,從中找出減小結構溫度內力的方法。This dissertation mainly has a research on the control of temperature stress and temperature strain in super thick mass concrete planceer of high - rise building. because the cracks of super thick mass concrete planceer of high - rise building is mainly caused by temperature stress and temperature strain, we have an emphasis research at the change of the temperature stress of super thick mass concrete planceer, study the construction technique how to prevent mass concrete planceer from appearing the crack ' s, and provide a viable fulfillment experience
本文以高層建築超厚底板大體積和混凝土結構施工中的溫度應力和溫度變形控制為研究對象,針對高層建築超厚底板產生裂縫的主要原因是溫度應力和溫度變形這一特點,重點研究底板大體積混凝土溫度應力產生和變化的機理,探討防止底板大體積混凝土出現裂縫的施工技術,提供切實可行的實踐經驗。The change of the stress in the composite during the thermal cycling treatment can be evaluated through the analysis of resistivity. the parameters of thermal treatment also can be determined, such as the temperature, the time and the cycling times
通過電阻率分析可以確定復合材料熱循環中的應力變化,確定熱處理參數(即熱處理溫度、保溫時間、循環次數) 。This test combines the temperature control of the base slab of big bridge in yangtze river of badong, study and analyze the regulation for changing of internal temperature field and stress of mass concrete and the measure ' s actual result of thermal control that adopt hi the engineering
本文結合湖北巴東長江大橋7 ~ #主墩承臺大體積混凝土溫度控制的工程實踐,研究分析了大體積混凝土內部溫度場和溫度應力變化的規律和工程中採用的溫控措施的實際效果。Then analysis the testing data at the base slab of big bridge in yangtze river of badong comparing with calculating result. by means of this, conclude the principle of temperature field and thermal stress, summarize the effect of different crack control measures, propound some useful suggestions for worksite, show the direction for further more investigation at last
對巴東長江大橋施工現場主墩承臺溫度、應力測試結果和計算結果的分析比較,總結了大體積混凝土溫度場和溫度應力變化的一般規律,討論了施工現場常用控制溫度技術措施的實際效果,提出了施工現場裂縫控制的一些建議。The conveying medium in pipe has great effect on buried pipeline ’ s damage, its flow pattern, temperature, pressure change, velocity, all of these can influence the shell of pipe and its stress distribution. so it is very important to analyze the fluid - pipe coupling
管道內部的輸送介質對管道破壞影響也很大,管內介質的流態、溫度、壓力變化、流速等對管壁變形和應力分佈都有影響,故管道內流體和管道間的耦合分析對地下管道破壞分析很重要。分享友人