徐自力 的英文怎麼說
中文拼音 [xúzìlì]
徐自力
英文
zi-li xu-
Hyperbola model of mgo - mixed concrete ' s autogeny deformation, especially deduce of the model ' s parameter and building process of the model are analyzed in detail. ( 2 ) calculating method of autogeny deformation and creep are discussed. based on these, timely - simulation theory of dam body ' s temperature field stress field and pre - process back - process method are mainly studied
（ 2 ）對mgo混凝土的自生體積變形及徐變變形的計算方法進行了探討，在此基礎上，重點研究了壩體溫度場和應力場實時模擬的原理以及前後處理方法。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。Combining with the performances of danshan bridge, discussing the methods on the construction controlling and calculation of cable - stayed bridge, this paper raises an efficient construction controlling system, and realizes collecting construction data of the real bridge and technical information. by analyzing on the difference of theoretical calculation and real construction state, the author determines to take self - adapting construction controlling method which uses kalman filter method to identify and adjust construction parameters. by getting rational construction state from forward iteration method, this paper, taking concrete creep effect in consideration, raises a rational scheme to pre - remain deformation and adjust cable force
結合丹山橋的結構特點，通過對斜拉橋施工控制及結構計算方法的探討，提出了有效的施工控制系統，實現了對實橋施工數據和技術信息的採集；通過分析理論計算與實際施工狀態的差異，確定了以卡爾曼濾波法作為施工參數識別與調整的自適應施工控制方法；通過正裝迭代法確定其合理施工狀態，並考慮混凝土的徐變效應，提出了合理的預留拱度和索力調整方案。In redundancy structure, the structure ' s distortion and strain will change along with time because of creep. according to the characteristic of concrete ' s creep, the creep grows quickly in the concrete " earlier age. for the long of bridge ' s construction period, the concrete ' s age of different part are discrepantly
在超靜定結構中，結構的變形和內力都會因徐變而隨時間不斷變化，對于實際的工程結構，結構的整體總是分階段建造起來的，某些荷載（如自重）也是在結構建造過程中分階段作用在不斷生長的結構上的。Third, the theory and formulations about the stress redistribution due to creep and shrinkage of composite section and the secondary internal forces which are caused in hyper static structure, the self - stressed force and the secondary internal forces due to expansion, are studied, program is compiled by use of formulations studied above and it is used to analyze sensors that are installed during the course of work
再次，探討了收縮徐變作用下組合截面應力重分佈以及在超靜定結構產生次內力和膨脹變形引起自內力和次內力計算理論及公式，編制了相應程序，對加固過程中埋設的傳感器進行了分析計算。He teams up with bigger companies like those mentioned above, obtaining support that ranges from financial to exhibition. because of his reputation and his charisma - liu maintains that tsui carefully cultivates his image to enhance his mystique, including bragging about his ability to work without sleep, keeping a goatie and always wearing shades
他還擁有創作上的控制權，原因在於他的聲譽，也在於他的魅力據劉大木說，徐克很會營造自己的神秘形象，表現不用睡覺的工作能力，並戴上墨鏡蓄羊咩須。Not only t he self - weigh of every beam, the prestressing, the compression on the support of form scaffolding, constriction of concrete, creeping are considered when the inter nal force is calculated, but also the result of displacement and deviation of th esupport and precamber should be taken into consideration
施工階段的內力計算不僅考慮逐段施工梁的自重，預加應力，模板支架的支點壓力，以及混凝土的收縮、徐變；同時還應考慮施工程序，施工中的支座位移、支座偏差和預拱度等的影響。Considering the characteristics of internal force and structures of simply supported pc bridges, a novel automatically step - up method ( asum ), taking into account the influence of steel arrangement, steel ratio, stress losses of tendons and time - dependent concrete modulus, to analyze creep and shrinkage effects is presented. this method accepts all kinds of expressions of creep and shrinkage, and it is easy to calculate total stress, strain of concrete and steel and deflection of bridge at any time, the expected prediction accuracy will be obtained by further dividing the time - step within duration
首先，針對預應力混凝土簡支梁橋的受力特徵和構造特點，提出了徐變效應分析的全量形式自動遞進法，可考慮截面上鋼筋位置、配筋率、預應力鋼筋鬆弛、混凝土彈性模量隨時間變化等影響，且計算式可適用於任何形式的收縮、徐變特性表達式；建立的公式可方便地求解任意時刻混凝土、鋼筋的應力與應變和跨中梁體的豎向變形，計算精度可方便地通過計算時段的細分來控制，直至給出滿意的結果。5. the fem calculating method of thermal - creep - stress is studied, and the corresponding program has been developed. with the international program of ansys, the program is validated as being right
研究了溫度徐變應力有限元計算的方法，並編制了相應的計算程序，通過算例，用國際通用軟體ansys驗證了自編程序的正確性。Influence of the temperature field and stress field is ignored but some other factors are considered such as temperature difference between the surface and inside of the concrete, circumstance temperature, work sequence, shaping period, elasticity modulus, the volume etc. and the emulation technology is applied to calculating the construction of the concrete
運用模擬技術對大體積混凝土結構進行了不考慮損傷狀態下的溫度場及應力場的模擬計算。計算過程中綜合考慮了混凝土結構內部溫度的變化，環境溫度的變化，施工順序，澆築時間以及材料彈性模量的變化，徐變特徵，自身體積等因素，同時指出了模擬計算中存在的問題與不足之處。Taking nanpu bridge ( fst bridge ) in chun - an county as an instance, many problems on construction control technique for cfst bridge are discussed in this paper, including : the analysis method of simulating construction phase, construction monitoring technology, calculation of stayed - buckle - cable forces, allotting deadweight of pumping liquid concrete, analysis on the inflection of shrinkage and creep of core concrete in steel tube, analysis on the error in construction control, sensitivity analysis of parameters and parameter identification
本文以淳安縣南浦大橋為背景，對鋼管混凝土拱橋施工控制中的結構分析方法、施工監測技術、斜拉扣索索力計算、泵注混凝土自重荷載的分配、鋼管核心混凝土收縮徐變分析、施工控制誤差分析、參數敏感性分析及參數估計等問題展開研究。分享友人