板梁的腹板 的英文怎麼說
中文拼音 [bǎnliángdefùbǎn]
板梁的腹板
英文
web-
Floor-beam webs have cracked in tied arch bridges.
在系干拱橋的橫梁腹板上發生裂紋。The web and flanges of the main girders were fabricated from astm a441 steel.
主梁的腹板和翼緣用ASTMA441鋼製造。It is the key of ebfs, therefore, furthermore calculation about link are carried out in this thesis, introduced achieved research, summarized the affect of link on whole capability in the first, the second, numerical calculation are proceeded on link with ansys : with the purpose of discussing yielding mode critical length of link, established five different specimens ; with the purpose of discussing the influence of h / tw of web, b / tf of flange and h / b, established eighteen different specimens ; with the purpose of discussing the affect of stiffener, established four different specimens, and elaborated the affect of stiffener on link based on achieved test researches
因此,本文對耗能梁段進行進一步計算分析,概述耗能梁段對整體性能的影響,並利用有限元程序ansys對耗能梁段進行數值計算:針對耗能梁段的屈服類型建立5種不同長度的模型,計算討論耗能梁段屈服類型的長度劃分;針對耗能梁段腹板高厚比、翼緣寬厚比以及梁段截面形狀等因素共建立了18種模型進行計算分析;針對加勁肋對耗能梁段的作用建立了4種模型,並結合已有的試驗闡述了加勁肋對耗能梁段的影響。In addition to, the fatigue crack between web and upper flange of welded steel crane beam on heavy duty service was discussed, and based on long - term observation and research, the author classified fatigue crack into bearing type and middle type crack along the horizontal direction. the causation, distributive law and mechanism of the crack were analyzed, and the precautions to take and the measures to remedy crack were presented. the main defacts including damage, crack, erosion and aging in structures, especially in concrete structure were introduced ; the defact mechanism was analyzed and the precautions to take were also given
另外,作者對重級工作制焊接鋼吊車梁腹板與上翼緣連接焊縫的縱向水平疲勞裂縫進行了長期的觀察和研究,根據疲勞裂縫產生的不同機理,將其分為支點裂縫和肋間裂縫,並討論了兩類裂縫產生的原因、分佈規律、機理以及防治的措施;對工程中經常遇到的結構構件,尤其混凝土構件的幾種主要病害(損傷、裂縫、腐蝕與老化)進行了機理分析並提出了防治措施。Cracks have been found in the flange and web splices at groove welds in at least four bridges.
至少在四座橋梁的翼緣板和腹板拼接坡口焊縫中發現了裂紋。In order to considering the affections of the adjacent zone out of the girdler section, the internal - forces of two end surface which were obtained by the horizontal shaft system analysis are exerted on each model respectively. moreover, the weight, cable force and prestressing forces including girder longitudinal, diaphragm transverse and inclined web vertical directions are considered
考慮到梁段以外附近區域的作用,在其兩端面上施加了由平面桿系結構分析所得的端面內力,另外,索力和預加力(梁縱向、橫隔梁橫向、斜腹板豎向)也施加在相應的位置,分析了箱形主梁在自重、索力和預應力作用下的空間應力效應。The consequence is, when the majority of structure does n ' t enter yield habitus, but the position of belly - board has been reached the ultimate habitus, it lead to material waste of the other positions, we should pay attention to the disastrous result it will bright to us
它帶來的後果就是當結構的大部分處于彈性狀態時,箱梁腹板處由於剪力滯效應一般最先達到強度極限狀態,導致腹板間材料的抗力沒有得到充分的使用,如不引起重視會帶來災難性後果。Two structures that experienced cracking in the longitudinal girder web at x-type cross-frame are reviewed in detail hereafter.
以下將詳細評論在縱梁腹板與X型橫向框架連接處開裂的兩座結構。Stringer webs have cracked in suspension bridges at the stringer-floor beam connections.
在懸索橋的縱梁和橫的連接處,縱梁的腹板上發生開裂。Thecalculating results show that the composite action between concrete floor and steel beamsgreatly influence the bending bearing capacity and initial rotational stiffness of joints, it shouldbe considered in practical engineer. reinforcement ratio of lengthways reinforcing bar andthe stiffener of web have great influencer on the behavior of connections, while the thicknessof end - plate and degree of shear connection have a litter influence on its behavior
分析計算結果表明:樓板與鋼梁的組合作用對節點的抗彎承載力及初始轉動剛度的影響非常大,實際工程中節點設計應當考慮這種組合作用;樓板內縱向鋼筋配筋率與柱腹板加勁肋對節點性能影響顯著,而連接端板厚度及剪力連接程度的影響則不是太顯著。Often lack of fusion adjacent to the girder web in the transverse groove welds led to the cracking.
在靠近主梁腹板的橫向坡口焊縫處常常出現未熔透而導致裂紋。At the top flange there would be enough slack so that no relative twist of any significant magnitude would be introduced into the girder web.
在上翼緣處有足夠的松動,因而在主梁腹板上並不會引起很大的相對扭轉。According to the analysis result, the reason of the inclined cracks in the box girder webs of the bridge is found
根據分析結果,找到了該橋箱梁腹板斜裂縫的成因。Two structures that experienced cracking in the longitudinal girder web at x - type cross - frame are reviewed in detail hereafter
以下將詳細評論在縱梁腹板與x型橫向框架連接處開裂的兩座結構。In the hogging condition, double bottom and the side shell remain the ultimate bucking strength, deck and upperwing tank remain the yield stress, and the other parts keep elasticity. then the key to calculate the ultimate strength of ship hull girders is to ascertain the ultimate bucking strength of the stiffened panels. in this regard, the developed formulation is designed to be more sophisticated than previous simplified theoretical method for calculating the ultimate strength of stiffened panels under combined in - plane bending and lateral pressure. fabricatio n - related initial imperfections ( initial deflections and residual stresses ) are included in the panel ultimate strength calculation as parameters of influence. all possible collapse modes involed in collapse of stiffened panels, including overall buckling collapse, column or beam - column type collapse, tripping of stiffeners and local bukling of stiffened web are considered
確定了船體梁整體破壞時的剖面應力分佈之後,關鍵在於確定板架的極限屈曲強度。本文充分考慮了在縱向彎曲、橫向壓力作用下加筋板可能發生的幾種破壞模式,即板架的整體屈曲破壞、樑柱形式的破壞、筋的側傾、腹板的屈曲並同時考慮了初始焊接殘余應力、初撓度的影響,使其更精確的計算加筋板的屈曲強度。對于加筋板中加強筋腹板的局部屈曲,採用解析法推導出筋的腹板的撓度方程及其邊界條件,求解相應的方程,從而計算出腹板的局部屈曲應力。Modeling the general solid web continuous box girder and opening - in - web ( open web ) continuous box girder by ansys finite element modeling tool, node stress of governing section and corresponding shear lag values are analyzed. the solution is validated by comparing with variational results and modeling test values. based on the model, the section shear lag induced by dead load, prestress tendons and car loads under the most unfavorable condition and lateral symmetry are also approached. the influence of shear lag effect in double - level continuous box girder is considered with opening - in - web and the web location. the analysis indicates that double - level - load arouses less shear lag effect than one - level - load. when self - weight and prestressed tendons act on together, the shear lag effect on box girder take on a evidently change
基於所建立的有限元模型,本文分別對實腹和腹板開孔兩種箱梁在恆載、車載、預應力荷載作用時,各主要截面的剪力滯效應進行分析,通過施加縱向最不利的和橫向對稱的車輛荷載,研究實腹連續箱梁和空腹連續箱梁在承受雙層荷載和單層荷載時引起的剪力滯效應,並考慮腹板開孔及開孔位置對于連續箱梁剪力滯效應的影響。分析表明,雙層車載對于箱梁引起的剪力滯系數比單層車載的影響要小,對于箱梁中存在引起的剪力滯后現象有一定的改善作用。Based on the research of influenced parameters on constant and varying depth solid web box girder before, the shear lag aroused by the parameters including width - span ratio, outstanding flange on base slab and the position of the tendons are further studied. the investigation show that shear lag values diminish along with the decease of width - span ratio and the departure from the symmetrical axis of anchor position, but outstanding flange is contrary to the former
在前人對等截面、變截面實腹箱梁剪力滯效應影響參數研究的基礎上,本文進一步對腹板開孔的連續箱梁的寬跨比、底板翼緣伸出以及預應力錨固位置改變等參數對箱梁剪力滯的影響進行研究。This paper applies nonlinear finite element program bsnfem to analyze the behaviors of eccentrically braced steel frames under cyclic load. the study that comprehensive and systematic analyze the factor of links length, thickness of links flange, distance of links rib, thickness of links rib and angle of brace to be changed affect energy - dissipation capacity of d shape and k shape eccentrically braced steel frames have been some studied before. this paper fills the black in the filed factor of high - span ratio, brace stiffness and brace - to - beam connections to be changed affect energy - dissipation capacity of d shape and k shape eccentrically braced steel trames and any factor to be changed affect energy - dissipation capacity of y shape eccentrically braced steel frames
對耗能梁段的長度、耗能梁段腹板的厚度、耗能梁段翼緣的厚度、耗能梁段加勁肋的間距、耗能梁段加勁肋的厚度、支撐的夾角等因素的改變對d形、 k形偏心支撐鋼框架耗能的影響,前人已有一些研究,本文對這些因素的影響進行了全面系統的分析,完善了理論分析的不足;而結構高跨比、支撐剛度、支撐與梁的連接形式等因素對d形、 k形偏心支撐鋼框架破壞機理的研究以及各種因素對y形偏心支撐鋼框架破壞機理的影響,則很少有人涉及,本文對此也進行了深入系統的分析,填補了這一研究空白。The web and flanges of the main girders were fabricated from astm a441 steel
主梁的腹板和翼緣用astm a441鋼製造。When whole analysis is carried through the beam - lattice method and bridge surface is made of box beams with one box and two cells, according to the principle of constant bending rigidity and every part revolving the same neutral axis, a box beam can be simplified into three beams in the places of corresponding webs. thus effective transfer of shearing force can be ensured, and global property can be reached through that of three beams, this kind of method is simple and is able to ensure engineering precision ; secondly, the paper is based on elastic theory, adopts finite element method and carries through the first kind stability analysis towards zhongshan no. one bridge
在選用梁格法進行整體分析時,遇到橋面系是單箱雙室的箱型梁時,按照抗彎剛度不變且各部分繞著同一中性軸的原則,將一個箱型梁在相應的腹板處簡化成3根梁,能夠保證剪力的有效傳遞,而且可以由這劃分的3根梁的性能得到箱型梁結構的總性能,這種方法簡便易行且能保證工程精度;其次,本文基於彈性理論,採用有限元法對中山一橋進行了第一類穩定分析。分享友人