structural field concrete 中文意思是什麼

structural field concrete 解釋
現澆結構混凝土
  • structural : adj. 構造上的，結構上的，組織上的。adv. -ly
  • field : n 菲爾德〈姓氏〉。n 1 原野，曠野；（海、空、冰雪等的）茫茫一片。2 田地，牧場；割草場；〈pl 〉〈集...
  • concrete : adj 1 具體的，有形的；實在的，實際的。2 固結成的，混凝土製的。3 圖案詩歌的（參閱concrete poetry）...
  1. At present plenty of experimental study has been made on the materials and structural performance of asphalt concrete cores in the world, and the design methods and construction technique as well as equipments have been more mature. however, there is still lack of the research of its basic performance. in this thesis, in combination with the actual project, the experimental study has been employed with the field core specimen and the specimen made in laboratory, mainly include the static triaxial test, confinement pressure stabilization test and stress relaxation test

    目前，國內外對瀝青混凝土心墻的材料和結構性能已進行了一些試驗研究，其設計方法、施工工藝和設備較為成熟，但其基本性能研究方面顯得較為薄弱，本文結合實際工程對瀝青混凝土心墻的芯樣和試驗室成型的試件進行了試驗研究，主要包括靜三軸試驗、圍壓穩定試驗以及應力鬆弛試驗研究，得到以下基本結論： 1
  2. Reliability assessment of xi - luo - du underground water - power plant : the results have been used by the cheng - du surveying, design and research institute for the preliminary design ; （ 2 ） the stress and strain analysis for the xiao - guan - zi sluice and its foundation : the report has been applied for the reinforcement of the foundation ; （ 3 ） the thermal control procedure for the no. 7 - 14 power plant dam segments of the three gorge project ： the research report provides the effective and efficient methods for the controlling of the temperature field in the mass concrete structure ; （ 4 ） the software system development for the long - term monitoring for dikes ： the software can automatically give the results of the seepage field and the probability of soil piping of dikes and underground ; （ 5 ） reliability assessment of xiang - jia - ba underground water - power plant : the results have been used by the zhong - nan surveying, design and research institute for the preliminary design ； （ 6 ） fatigue reliability estimation of shipping berthing pillar : the results give the optimized design scheme and prediction of the structural age ; （ 7 ） 3 - d static and dynamic stochastic finite element analysis for the strength, stability and thermal control problem for xi - luo - du project

    溪洛渡水電站超大型地下洞室群圍巖穩定的安全可靠性分析：被成都勘測設計研究院應用於比選報告及可行性論證中； （ 2 ）小關子水電站攔河閘壩及地基的應力應變分析：被成都勘測設計研究院應用於地基加固處理方案； （ 3 ）三峽廠房7 # - 14 #壩段溫控並縫措施研究：為廠房壩段並縫方案的可行性提供了依據； （ 4 ）堤防工程體系的長期監控預報預警決策系統開發：為監控、預測預報堤防滲漏管涌破壞提供分析軟體； （ 5 ）向家壩地下洞室群圍巖穩定的安全可靠性分析：被中南勘測設計研究院應用於初步設計方案中； （ 6 ）靠船墩的疲勞可靠度研究：為廣東航運規劃設計院的靠船墩優化設計和加固提供依據； （ 7 ）溪洛渡高拱壩壩體壩基（壩肩）強度和穩定的三維靜動力隨機有限元分析及可靠度計算：為溪洛渡重大工程壩體的靜動力安全穩定性及溫控方案提供依據。
  3. 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。
  4. The parameters in the study included the fire duration time, the axial load level, the section type and the strengthen method. the ultimate lateral strength, flexural stiffness, dissipated energy and ductility of the columns were compared and analyzed. ( 2 ) based on the stress - strain relations for steel and concrete after high temperature and the temperature field in the structural member, fiber - based model was developed to calculate the hysteretic moment ( m ) versus curvature ( ) relations and the lateral load ( p ) versus lateral displacement ( ? )

    （ 2 ）在確定高溫后鋼材和混凝土在往復荷載作用下的應力-應變關系以及構件截面溫度場的基礎上，考慮力-溫度-時間作用路徑，建立了火災后鋼管混凝土壓彎構件滯回性能的理論分析模型，對火災后鋼管混凝土構件的彎矩-曲率（ m - ） 、荷載-變形（ p - ）滯回關系曲線進行了分析，計算結果與實驗結果總體上吻合較好。
  5. The research on corrosion of pre - stressed concrete bridge is a very complex project, the research involve the theory of pre - stressed concrete engineering, electrochemical mechanism, structural durability analysis, theory of control and etc. due to this reason, the research on this field is rare, and most relevant research is mainly on the development of pre - stressed concrete engineering, structural electrochemical mechanism, the method of monitoring, corrosion protection of service structure and structural durability analysis separately

    預應力混凝土橋梁的腐蝕研究是一項跨學科的課題，牽涉到預應力混凝土工程、電化學腐蝕、結構耐久性分析以及控制理論等多個方面。由於課題的復雜性，目前針對性的研究較少，絕大部分的相關工作主要集中於預應力混凝土工程的研究發展、結構電化學腐蝕機理及檢測方法的研究、在役結構的防腐蝕研究、結構的耐久性研究等幾個獨立的方面。
  6. The main contents are following : ( 1 ) from the methodology of nn, the basic theories on nn are discussed, with the emphasis on the mechanism of nn and its study rules. then the bp nn is concerned, because it is the comparatively most widely used nn type in the field of structure ' s damage identification ; ( 2 ) from the angle of system identification theories, the method and process of establishing the identification system model are demonstrated. also, how to implement a structural damage identification system of concrete architecture, based on bp neural network is demonstrated in the thesis ; ( 3 ) in order to find a more effective training algorithm of global approach, the way of optimizing network ' s weights using ga is demonstrated

    論文的主要內容包括： （ 1 ）從神經網路理論出發，探討了神經網路的基本理論，並重點論述了神經網路的工作機制和學習規則，及在結構損傷識別領域中廣泛應用的前向神經網路模型- - - - bp神經網路模型； （ 2 ）從系統識別論的角度，提出了利用神經網路建立混凝土結構損傷識別反問題的思路、方法和步驟，並在此基礎上研究了基於bp神經網路的結構損傷識別系統對單處梁結構進行識別的方法； （ 3 ）為了尋找一種更有效的全局逼近學習演算法，本論文從神經網路與遺傳演算法相結合的角度，闡述了遺傳演算法結合bp演算法優化神經網路權值的方法，實驗證明，遺傳演算法和神經網路相結合不僅具有神經網路泛化的映射能力，而且具有遺傳演算法快速和全局逼近的優點，是一種較好的解決混凝土結構損傷識別問題的方法； （ 4 ）基於java語言設計並實現了結構損傷識別系統。
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