端大樑 的英文怎麼說
中文拼音 [duāndàliáng]
端大樑
英文
end girder
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端 :
Ⅰ名詞1 (東西的頭) end; extremity 2 (事情的開頭) beginning 3 (門類; 方面) item; point 4 (原...
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( 2 ) from the equilibrium conditions of the isolated segment from a beam - column sub - assemblage, it is clarified for the first time that the bond stress along the beam rebars passing through the joint transfers into the column end to balance shear at this column end at the same ratio as that of the compression force in the compressed concrete at beam ends
通過對
樑柱組合體柱脫離體的平衡條件,首次明確了貫穿節點梁筋粘結應力和梁
端受壓混凝土的壓力以相同的比例傳入柱
端以平衡柱
端剪力,從而對節點區的傳力機理重慶
大學博士學位論文結出了完整的和具有說服力的解釋。
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By calculating large quantity of examples, this text studies earthquake resistant behavior of tapered portal frame with pined bases and analyzes its natural frequency, natural period of vibration and vibration mode. by comparing interior forces of pillar top, beam end and span midpoint in two conditions that seismic action effect participates combination of forces and not when portal frame is n ' t changed, ensure conditions that combination of seismic action effect has controlling f unction during tapered portal frame design, and tapered portal frame demands anti - earthquake design
本文通過
大量算例分析,研究柱腳鉸接楔形變截面門式剛架的抗震性能,並對其自振頻率、振型進行了分析;通過比較地震作用效應參與荷載組合與不參與荷載組合兩種情況下,
樑柱截面尺寸不變時,柱上
端、梁
端、跨中截面處的內力
大小,確定在什麼情況下地震作用效應組合起控製作用,變截面門式剛架需要進行抗震設計。
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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。
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Firstly the method of rayleigh - ritz and galerkin were adopted to analyze the beams under loading combined antisymmetric end moments with transverse uniformly distributed load theoretically, and the results were compared with that offered by kirby, p. a and nethercot, d. a, it showed that result was approximate and even lower and so to some extent the approach used in the paper is practice. secondly several principal factors that affect the beam stability were analyzed respectively, especially the shortening effect was mentioned scarely in some literature so far. at last, the author adopted the matlab to program the finite element software to analyze numerically, the results derived from it were agreed well with it
本文分別採用了rayleigh - ritz法和galerkin法從理論上分析了反對稱
端彎矩及橫向均布載共同作用下
樑的等效彎矩系數,並與kirby , p . a和nethercot , d . a分析結果進行對比,結果表明本文採用的方法得出的等效彎矩系數與其得出結果比較,在均布荷載與
端彎矩比例相差不
大時基本接近或偏小,說明此方法是可行的,而當均布荷載與
端彎矩比例較
大時,應根據均布荷載作用進行彎矩等效方法來計算。
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This device takes rubber ( plastic cement ) as substitute for metal bumper, inside it an inflated tyre is set, ineffective part joining front of supporting frame and bumper is removed, and replaced by metal connecting bar, bar front is fixed unto bumper, and bar ' s rear connected with spring, spring ' s rear is fixed to a steel bowl firmly hugging closely an inflated rubber ball ( two ), rear ball is closely hugged by another steel bowl at front of another spring, and another rubber ball placed at spring ' s rear
該裝置由橡膠(塑膠)代替金屬保險杠,內置充氣胎,去掉前
端大樑與保險杠連接的無效部分,以金屬連杠代替,連杠前
端固定於保險杠上,後
端連接彈簧,彈簧的後
端固定一鋼碗緊貼充氣皮球(兩個) ,后皮球與另一彈簧的前
端鋼碗緊貼,另一彈簧的後
端再放置一充氣皮球。
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The top beam can reform the force - bearing mechanism of the retaining piles because the cantilever piles can be fixed by adding a restriction on the top of the piles and the displacement of the piles can be reduced too. as the same time, top beam can harmonize the displacement and force of the piles and avoid the phenomenon of chain failure as one of the piles is destroyed. if the top beam are closed it can work well because the support on the two ends
樁頂圈
樑對支護樁的作用主要體現在:改善支護樁的力學性狀,變懸臂樁為頂
端約束的超靜定狀態;對樁頂位移起限製作用,減小基坑工程對周邊環境的不良影響;協調各樁之間的受力和位移,避免局部受力過
大引起各樁之間的連鎖破壞現象。
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The following principles are proved : increasing cfp adhesive length will release the concentrating of shear stress near the cutoff point, this will lead to the increment of loading - bear capacity of concrete beams ; increasing the thickness of cfp will improve the transition of load from concrete beam to cfp, this is useful to exert the potential of cfp ; in creasing the anti - shear modulus of adhesive will result enhance the concentrating of shear stress, this is harmful to the effect of cfp reinforced concrete beams
本文的理論分析結果可以表明:增加碳纖維板的粘結長度可以緩解碳纖維板
端部界面上的剪應力集中,改善混凝土梁結構的加固效果;增
大碳纖維板的粘結厚度可以增
大界面上的剪應力,改善混凝土
樑上載荷向碳纖維板的傳遞效果,有利於充分發揮碳纖維布的潛能;如果粘結膠層的抗剪模量過
大會加劇剪應力的集中,從而對碳纖維加固的效果不利。
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So, the method, that is, determining adjusting coefficient of moment capacity of column - to - beam according to actual reinforcement of beam, which have been adopted by framework of gradel intensity - category 8 and of grade 1 intensity - category 9 can effectively form advantageous energy - dissipation mechanism under intermediate earthquake and rare earthquake
因此, 9度一級和8度一級框架按梁端實配鋼筋確定樑柱抗彎承載力級差系數的方法能較為有效的引導框架在中震及大震下形成有利的耗能機構。