桁架結點分析 的英文怎麼說
中文拼音 [héngjiàjiēdiǎnfēnxī]
桁架結點分析
英文
analysis of truss joints- 桁 : 桁名詞[建築] (檁) purlin
- 架 : Ⅰ名詞1 (用來放置東西或支撐物體等的東西; 架子) frame; rack; shelf; stand 2 (毆打; 爭吵) fight;...
- 結 : 結動詞(長出果實或種子) bear (fruit); form (seed)
- 點 : Ⅰ名詞1 (液體的小滴) drop (of liquid) 2 (細小的痕跡) spot; dot; speck 3 (漢字的筆畫「、」)...
- 分 : 分Ⅰ名詞1. (成分) component 2. (職責和權利的限度) what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] (料想) judge
- 析 : Ⅰ動詞1. (分開; 散開) divide; separate 2. (分析) analyse; dissect; resolve Ⅱ名詞(姓氏) a surname
- 桁架 : truss桁架桿 truss rod; 桁架高度 truss depth; 桁架跨度 truss span; 桁架梁 girder truss; truss beam...
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According to the frndamental and the steps of this method, we cans use the linear regress filter method to make the simulation of the wind load and then we can educe the curve of the time - process wind velocity. after that step, we can get the chart of the dynamic wind load which we can deliver the crosswind into the particle wind load and put them on the corresponding cell nodes. then we can do the analysis of the dynamical wind load through the time - process analysis to get the max value of the displacement
根據線性回歸濾波器法的基本原理和步驟,藉助相關軟體進行風荷載的人工模擬並得出風速時程曲線,進而轉化為風動力譜,由此將橫風向風力表達成節點風荷載作用於相應的單元節點上,按時程分析法對該空間桁架體系進行風荷載的動力分析,求出結構在進行風動力荷載分析時,結構相應節點對應的最值位移值。In this paper, the structural characteristics and structural types of prestressed concrete truss - stayed bridge are analytically discussed, the new ideas for further development of the type of the bridge are put forward and two practical examples of the bridge are illustrated as well
摘要分析探討了預應力混凝土斜拉桁架橋的結構特點及結構型式,提出了預應力混凝土斜拉桁架橋新的發展思路,並介紹了2個實際工程項目。The authors describe the modelling of a railway steel truss bridge with long - span in order to analyse the detailed distribution of stress for members and nodal plates in main truss, the detailed deformation and stress distribution due to frame effect on transversal bracing plane in truss bridge, and the detailed distribution of stress in important parts of the steel plate girder bridge with initially transversal deformation by using sseb in this article
本文建立大跨鐵路鋼桁梁橋和鋼板梁橋全橋結構模擬分析數學模型,說明了鋼桁梁橋桿件和節點板詳細應力分佈、平面框架詳細變形與應力分佈和有變形缺陷鋼板梁橋重要部位應力的模擬分析結果等問題。The stability analysis of complicated lattice structure becomes the crux of contemporary and large crane structure design and its calculation
復雜桁架式結構的穩定性分析成為當代大型起重機結構設計計算的難點。The main work of this paper was as fellows : ( 1 ) generalized the development of pre - stressed steel structure in our nation and abroad, and pointed out the main problem in practice ; ( 2 ) presented the mechanism of pre - stressed steel structure and revealed its applicable range ; ( 3 ) established the optimization design model for pre - stressed steel structure, which accounts for constraints on stresses and displacements of structure ; ( 4 ) brought forward the optimization design method, which combined linear programming and the principle of full restriction, through which we can obtain the magnitude of each time pre - stress and the optimized sections of each members of structure ; ( 5 ) analyzed the best times of pre - stress and pointed out that 2 ~ 3 times is preferable ; ( 6 ) conducted optimization design on large - space steel roof, horizontal parallel steel truss with local cables, horizontal parallel steel truss with global cable, and ultra - static steel truss, the result of which indicated that the multiple pre - stress structure is very economic ; ( 7 ) compared different schemes of cable placement for horizontal parallel steel truss, and the results showed that the local cable only unloaded the second girders, but had no response on the first girders and stomach poles, while global cable could unload the second girders and the stomach poles outside of turning point of cable, thus proving that global cable is more economic than local - cable
本文的主要工作是:對國內外預應力鋼結構的發展歷史及現狀作了綜述和總結,指出當前預應力鋼結構工程實踐中存在的主要問題;闡述了預應力鋼結構的受力機理,並指出預應力鋼結構的適用范圍和特點;在考慮結構應力和變位約束的條件下,建立預應力鋼結構優化設計模型;提出多次預應力鋼結構優化設計方法和步驟,採用線性規劃和滿約束準則相結合的優化方法,可優化設計出施加的每一級預應力的大小,並得到結構各部分的優化截面;對多次預應力最佳的施加次數作了分析,並建議以2 3次為宜;為驗證文中理論和方法,分別對大跨多次預應力鋼屋架、局部布索的水平平行弦鋼桁架、整體布索的水平平行弦鋼桁架和局部布索的超靜定鋼桁架等算例進行了優化設計,經濟效益明顯;對水平平行弦鋼桁架的幾種施加預應力的方案進行比較,對于局部布索,預應力只對下弦起到卸載作用,對上弦和腹桿基本不起作用;而整體布索預應力除對下弦卸載外,對索折點以外部分腹桿也起到卸載作用,經濟效益好於局部布索。Wan zhou yangtze river bridge is the establishing large span steel truss bridge now, and the property of it is the lower stiffness of the main girder. when the speed is high, the analyses and the vibration control of vehicles and bridge are very important, especially the dynamic lateral response of the system
萬州長江大橋是目前在建的大跨度鋼桁架拱橋,其特點是主梁結構剛度較小,在高速行車速度下,對起車橋耦合振動分析及其控制尤其是車橋系統橫向動力響應研究則尤為重要。The simplified model took into account the working of the steel tube, and the calculating method of local compression strength of concrete in tube corresponded to that recommended in the chinese code for design of concrete structures
簡化模型考慮了鋼管參與工作,管內混凝土局部承壓強度計算方法與我國混凝土結構設計規范保持一致。建立了矩形鋼管混凝土桁架節點非線性有限元分析模型。Cellular automata was applied to solve mechanical problem of plane truss, and the feasibility of which was discussed in this article. the characteristic of cell and the way of dividing cell were studied while presenting a program and its frame chart. the work load of the new method was not much because it neednt form a partial differential set or a general finite element robustness matrix. numerical computing results show that the new method has a rapid speed of convergence to nodal displacement and internal force of element, so it probably has a good prospect in solving solid mechanical problems
嘗試用細胞自動機作平面桁架力學分析,探討了該方法的可行性.給出元胞的劃分方法和特性,列出計算框圖並編制了相應的程序,由於不必形成結構的偏微方程集或有限元的總體剛度矩陣,計算工作量小.算例表明,該方法對結點位移和桿內力的收斂速度均較快,是一種分析固體力學問題有前景的新方法Based on the analysis of bearing characteristic of the staggered truss system, a simplified calculation model of staggered truss structure under vertical loads or lateral loads is presented. after that, according to the simplified calculation model, iterate method for calculating internal forces of vierendeel staggered truss structure under vertical loads and a method for calculating member forces and lateral deflection of structure is provided. at last, a method for calculating effective - length factor of column is provided by analyzing the effect of restraint of column ends, other columns in same story and neighboring story on effective - length of columns
通過對交錯桁架結構體系受力特點的分析,確定了在豎向荷載和水平荷載作用下交錯桁架結構體系的簡化計算模型;然後,根據計算模型,提出了豎向荷載作用下空腹交錯桁架結構的內力迭代計算方法以及水平荷載作用下交錯桁架結構的內力和側移計算方法;最後,通過分析柱端約束、同一樓層其它柱子以及相鄰樓層柱子的影響,給出了柱子計算長度系數的計算方法。In this paper, based on a typical plan arrangement of two - user - on - one - storey and leap storey type multi - story house, the mechanical behaviours of the truss system, the difficulties in designing the truss system and the design of composite floor system is deeply analysed ; the connection design, fire proofing and corrosion protection used in this structure system are briefly introduced
本論文以一梯兩戶躍層式多層住宅的一種典型平面布置為依託,以構思該住宅結構體系設計的方式,對這種桁架體系的受力性能、設計難點和應用於該結構體系的壓型鋼板?混凝土組合樓蓋的設計進行了深入分析,對結構採用的連接、墻體和防火防腐措施進行了簡單討論。The distribution of pre - stress in parabolic net of astromesh deployable antenna plays an important role in design and analysis of this kind of deployable antenna, a common method to solve this problem is non - linear finite element method
環形桁架可展天線中心索網的預拉力配置問題是此類天線結構設計與分析的重點,目前,常採用的解決方法為非線性有限元平衡迭代。In this thesis, it is the first time that both 3d analysis concerning material and geometric non - linear and test research have been carried on the staggered truss system. supported by the science and technical research foundation of ministry of education ( no. 99089 ), the national natural science foundation ( no. 50078021 ) and college doctor foundation of ministry of education ( no. 2000053203 ), this thesis is aimed at offering convicting evidence for the coming 《 technical specification for steel structure of light - weight building systems 》
本文結合教育部科學技術研究重點項目(項目號99089 ) ,和國家自然科學基金(批準號50078021 ) 、高校博士點基金(批準號2000053203 )等資助項目,首次對交錯桁架結構體系展開空間三維的二階彈塑性全過程分析和模型試驗研究,旨在為該結構在工程中的應用提供設計依據,為我國制定《輕型房屋鋼結構技術規程》提供理論基礎。Therefore, the original optimization model is transformed into the problem of cross sectional area optimization. this paper had great research on the development of optimization algorithm by analyzing typical optimal search method, such as greedy algorithm, simulated annealing algorithm, neural network and genetic algorithm ( ga ). according to the characteristics of truss structure, we choose genetic algorithm as the solution way
本文在研究優化演算法發展過程的基礎上,分析了典型的優化搜索方法:確定性演算法如貪婪演算法,隨機搜索演算法如模擬退火演算法,人工智慧演算法如神經網路及遺傳演算法,根據桁架結構優化的特點,最終選擇以遺傳演算法作為桁架結構優化設計的主要演算法。分享友人