滿應力梁 的英文怎麼說
中文拼音 [mǎnyīnglìliáng]
滿應力梁
英文
fully stressed beams- 滿 : Ⅰ形容詞1 (全部充實; 達到容量的極點) full; filled; packed 2 (滿足) satisfied; contented; conte...
- 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...
- 梁 : 名詞1 (屋架中架在柱子上的長木) beam 2 (通常也指檁) purlin 3 (橋) bridge4 (物體中間條狀隆起...
-
The behavior of capping beam that joints single rank of piles, which nowadays is widely applied to the construction in china, is complexly influenced by many factors. while conversed continuum beam pattern is primarily adopted in existent design methods to predigest computations, it still lacks of satisfaction as a result that it could n ' t reflect on the variance of piles and the infection of soil
條形樁基連續承臺梁在我國現代建築工程中應用極為廣泛,其受力影響因素極為復雜,現行設計大多採用倒置的連續梁模式進行簡化計算,其無法考慮基樁的差異性以及地基土體對承臺梁的影響,計算結果難以令人滿意。The research shows that : 1 ) the ductility of the hsc bending members constructed is much greater than 5 ; 2 ) increasing the vertical links and distribution steel can increase the deflection under ultimate moment ; 3 ) with appropriate compressive bars, vertical links and distribution steel the increase of moment after yield and the decrease of moment under ultimate moment can be ignored, so the ductility of the hsc bending member is much larger ; 3 ) the width / depth ratio of hsc bending member has no obvious effect on the ultimate compressive strain of concrete ; 4 ) the method used here to calculate the deflection is applicable ; 5 ) the location of crack coincides with the location of vertical links and distribution steel ; 6 ) the bending property of the hsc structure under the blast load can meet the demand of protective engineering
研究表明:本文研究的梁、板構件的延性比遠大於5 ;增加箍筋(鉤筋、分佈筋)含量,可以提高壓區混凝土剝落時的撓度;在適當的受壓筋、箍筋(鉤筋、分佈筋)含量下,可以忽略壓區混凝土剝落瞬間的承載力下降,從而大大提高構件的延性;受彎構件的寬高比對壓區混凝土極限應變的影響不明顯;受彎構件的裂縫間距受箍筋(鉤筋、分佈筋)的布置影響;文中所用的承載力和變形計算方法是可行的。化爆試驗表明,高強混凝土構件的動載抗彎性能能夠滿足防護結構的要求。( 3 ) it is known that load effect is not consistent with the section resistance incommon section continuous composite beam. a kind of composite beam with itsrational section size is suggested, which is consist of the t shape concrete beam andsteel girder. this kind of composite beam not only has enough carrying capacity, almost has same positive and negative resistance moment, but can decrease theamount of the steel
( 3 )分析可知連續組合梁的跨中、支座截面處荷載作用效應及截面抗力規律不匹配,本文提出了採用t形混凝土梁和工字鋼代替一般的混凝土板和工字鋼的組合梁截面形式,並給出了截面尺寸比例,能使正負截面抵抗矩接近,符合組合梁受力特徵,減少了材料用量,滿足承載力和剛度等要求。In this thesis, aim to the beam axis shape be exactitude for design, the internal force of the beam be appeased by design request, the concept of modem cybernetics is applied, at the same time, the effecting parameter has collected. the paper build the ann model in predicting the beam camber an construction and discuss indetail the extraction of inputting nodes information when quoting the fundamental principle of ann model and introducing research process of the improved bnn. according to them, ann is applied in the construction control of prestressed concrete continuous bridge
本文以大橋成橋線形滿足設計要求和成橋內力控制在設計容許范圍內為目的,運用現代控制理論的思想,引用神經網路基本原理,詳細介紹bp神經網路的研究過程,從而建立預應力混凝土連續梁橋施工預拱度的神經網路模型,並詳細討論了模型的神經網路結點信息的提取,在工程實例的基礎上進行了數值計武漢理工大學碩士學位論文算,數值表明,將神經網路應用於預應力混凝土連續梁橋施工控制,獲得了滿意的結果,在預應力混凝土連續梁橋施工控制技術研究方面,具有方便有效、精度高的優點,具有良好的應用前景。The conclusion of reappearing analysis is that crane bridge be used as usual because main weld maximum stress of upper cover plate of main beam lower than yield limit though it higher than permissible stress. inner stress of secondary beam was over ultimate strength, and deforming is ultra big. so it was unfit for produce and secondary beam must be changed
再現分析得出的主要結論為:橋架的主樑上蓋板主焊縫的最大應力超過了許用應力,但小於屈服極限,可以繼續投入使用;副梁內部的應力遠遠超過了強度極限,變形特別嚴重,不能滿足生產要求,因此更換新的副梁;端梁內部的應力超過了屈服極限,小於強度極限,在應力較大的位置焊接補強板;投入使用后,要對整個橋架進行定期檢查。Under present social economic condition, bridge design should satisfy criterions of design load and increase bearing capacity in order to strengthen service performance. these are contents of bridge structural optimization. diseases in superstructure make the life - span of bridges shortened
在現今社會的經濟條件下,橋梁設計應該在滿足現行《橋規》設計荷載標準的前提下,適當提高橋梁的承載能力,增強其使用性能,而不是一味地強調造價最低,這就是橋梁結構優化的內涵。Some experts once suspected that the reserve pre - stresses in the lateral beams are not enough. in order to settle this problem, three construction schemes are analyzed comparatively. the results indicate that the pre - stresses in the lateral beam are acceptable and tensioning the reinforcements by two steps is the appropriate method both for the girder and the lateral beam
針對這一問題,本文採用三種施工方案進行對比計算分析,結果表明橫隔梁中的預應力儲備是滿足要求的,而且金馬大橋採用的這種橫隔梁力筋分批張拉的施工順序使該橋邊主梁及橫隔梁的受力都較為合理。Now with oil, chemicals, power, shipping, coal, and other industries are developing rapidly, from not satisfied with the status quo of the company has with the relevant scientific research institutes, institutions of higher learning and the joint development of anti - corrosion experts to develop new products and train a large number of high - quality technical and management talent now, the public secretary of technologies and products not only be used for oil, gas pipelines, ships, docks, marine facilities, and other traditional applications industries, and is to increasingly broad new areas extend and expand, such as heat exchangers, heaters, bridges and high - rise buildings, such as the underground foundation
目前隨著石油、化工、電力、船舶、煤炭等各個行業的迅猛發展,本公司從不滿足現狀,先後同有關科研院所、大專院校及防腐專家聯合研製開發新產品,培養了一大批高素質的技術和管理人才,如今,公司的技術和產品不僅被用於油、氣輸送管道,船舶、碼頭、海洋設施等傳統應用行業,而且正在向越來越廣泛的新的領域延伸和拓展,如換熱器、電熱水器、橋梁和高層建築的地下基礎等。Based on the test data of the crc beams taken from some chemical plants, which were mainly corroded by chloride, a calculation model was derived to calculate the ultimate load bearing capacity of such crc beams. then, bp nn model was built up to predict the ultimate load bearing capacity of crc beams. using such nn model to analyze many groups of test data ( under various corrosion cases ), satisfactory results are achieved
基於目前較少開展的實際腐蝕環境下鋼筋混凝土構件受力性能的試驗研究,通過引入受腐蝕混凝土和銹蝕鋼筋的損傷因子導出了受氯離子腐蝕鋼筋混凝土構件極限承載力計算模型;建立了bp神經網路模型對受腐蝕鋼筋混凝土梁承載力進行了預測,通過對多組國外試驗研究結果(不同腐蝕作用情況下)的分析均取得了令人滿意的預測結果,並且隨著試驗資料的積累,預測效果可以得到進一步的改善;因此,本文建立的神經網路模型對受腐蝕鋼筋混凝土構件承載力研究是一種十分有效的方法,具有較好的應用前景。The main problem won1d be whether tenslle stregth conld sallsfy the demand of truck - 20 and trailer - 100. after calculating internal forces. it is confirmed that the t - shaped beams with 16. 8m per span can meet the demand, while the ones with 22
通過內力計算,跨徑16 . 8mt梁能夠滿足新的荷載條件下的各項標準,跨徑22 . 2mt梁採用更換預應力鋼筋砼t梁方式解決。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。It has also pounded the keys, devices, disposition of surveyed spots, measure method and procedures, data gathering and process ( relation with construction workmanship ), error analysis and adjustment, control precision and rules, mechanism and method of control, tables of records, results and discussion. after completion, the bridge has good behaviors in dead loads state, cable forces, shape style of main beam, stress and strain of concerned sections, displacements of the tower top, which assure the reasonable state of cables, main girder and towers, and safe under running, demonstrate supervision
通過課題研究與實橋運用,荊州長江公路大橋斜拉橋施工過程各狀態和成橋恆載狀態下,斜拉索索力、主梁線形、主梁關鍵截面應變、索塔塔頂水平偏位等關鍵項目的施工控制結果均滿足設計期望值的要求,滿足橋梁施工范圍的要求,大橋主梁線形流暢,斜拉索、主梁和索塔三大體系的受力狀態合理,橋梁結構安全可靠,大橋的監測監控取得了圓滿成功,並為該橋營運階段的長期監測監控奠定了良好的基礎。( 2 ) the properties of gfrp reinforced polymer concrete beams and prestressed polymer concrete beams are tested by four point bending experiments, the result show : gfrp rods can be satisfied the stiffness request ; it ' s very necessary and effective to use prestressed beam to minish the defection, enhance the crazed load and reduce the width of the cracks
( 2 )通過對gfrp筋增強樹脂混凝土普通梁和預應力梁進行四點彎曲實驗,表明:利用玻璃鋼筋作為增強筋在強度方面是可以滿足要求的;對玻璃鋼筋施加預應力來減小撓度,提高混凝土的開裂強度,以及縮小裂紋寬度是非常必要也是很有效的。The contents include as follows : the influencing factors of the displacement ductility factor of the unbonded partially prestressed concrete frame structures, such as stirrup reinforcement characteristic value, nominal shear span ratio, axial compression ratio, the appearing order of plastic hinges and partial prestressing ralio ( ppr ) are discussed. the formula of displacement ductility factor of the unbonded partially prestressed concrete frame structures is suggested by regression analysis. with regard to the aseismic design and the request of ductility and energy dissipation, the restriction of the flat - beam / column sectional size and aseismic reinforced design are discussed
本文主要包括以下內容:討論了配箍特徵值、名義剪跨比、軸壓比、塑性鉸出現順序、預應力度等因素對無粘結部分預應力混凝土框架位移延性系數的影響,回歸了考慮影響因素的位移延性系數計算公式;對無粘結部分預應力混凝土扁梁框架結構,闡述了抗震設計對扁梁、柱截面尺寸的要求與限制;對滿足延性和耗能要求的無粘結部分預應力混凝土扁梁控制截面抗震配筋進行了探討;通過對無粘結部分預應力混凝土扁梁梁端的受力分析,改進了以往扁梁梁端扭矩設計值計算公式。Abstract : this paper studies the sensitivities in the structural optimization of the sheet cover, including the stress sensitivity and the displacement sensitivity as well as the eigenvector sensitivity. the sensitivities are solved by the finite element method. a beam element and a plate element are used for the structural analysis of the sheet cover. some equations about the sensitivities are given out and are applied to the structural optimization of the sheet cover. the results prove to be satisfactory
文摘:分析了在薄壁覆蓋件結構優化中應力敏度和位移敏度的計算方法,利用有限元法進行結構分析和敏度計算,推導出敏度的計算公式,並應用於薄壁覆蓋件的結構優化設計,得到了滿意的結果.薄壁覆蓋件的有限元分析採用了板單元和梁單元,應用實例的計算結果表明,應力敏度、位移敏度等的計算方法準確、可靠Taking beam with rectangular section as an example, the corresponding analytical solution of beam subjected to cosine distribution pressure is given through constructing the stress function satisfying all boundary conditions and biharmonic equation, which is a base of beam subjected to arbitrary distribution pressure
摘要以矩形截面簡支梁為例,通過構造一個滿足所有邊界條件和雙調和方程的應力函數,給出了梁受餘弦分佈力作用情況下相應的解析解,這為求解梁受任意分佈壓力作用下解的問題打下了基礎。A delaminated beam is divided into three areas and the displacement field of each area is a cubic function of the thickness coordinate. the continuity conditions of displacements and transverse shear stresses on the bonded interfaces, the delamination continuity on the debonded interfaces and the continuity conditions of displacements at the edges of debonded interfaces are assured
脫層梁被分為3個區,各區位移場為厚度坐標的三次函數,能滿足層間位移和剪應力的連續條件、脫層界面的脫層條件和脫層邊界點的位移連續條件。Combined with that the influence of the prestressed tendon layout on mechanics characteristic of three - span prestressed concrete deck arch bridge is taken into account in these methods, and demand of internal force and displacement in design is satisfied by using upward and downward eccentric layout of prestressed tendon
這些設計法針對該類橋型的特點,利用在拱頂梁中分別布置一定數量的上下偏心的預應力筋來優化結構的內力和滿足各部分的位移限制要求。In this paper, the method combined with curvature mode shape, finite element method ( fem ), artificial neural networks ( ann ) and genetic algorithms ( ga ) is applied. the optimization of a taper trunk beam of variable cross section under impact load can be obtained on the base of considering the objectives of minimum gross mass and the condition of constrain of dynamic stress
本文採用了曲率模態、有限元、神經網路和遺傳演算法相互結合的方法,對承受沖擊載荷作用的變截面懸臂箱型梁,在動應力滿足材料許用應力的約束下,以質量最小為目標函數,做了優化設計方面的研究。To the prestressed concrete continues beam, considerable experiments have been finished and nice achievements have been acquired at chongqing jianzhu university ( renamed chongqing university since the year 2000 ) in these years
對預應力連續梁,近年來重慶建築大學一做了大量的足尺構件的試驗研究,並取得了令人滿意的研究結果。分享友人