拱屈曲 的英文怎麼說
中文拼音 [gǒngqūqū]
拱屈曲
英文
buckling of arch-
The solutions are compared with previous theoretical results. conditions of inextensibility and negligible prebuckling in - plane deformation usually adopted in arch buckling analysis are also discussed
文中還討論了拱屈曲問題中通常採用的兩個假定對計算臨界荷載的影響。Based on the arch - cantilever method, the stability of arch ring and cantilever beam against elastic buckling in arch dams are analyzed with the theory of elastic stability, and the conclusion is drawn that the stability of arch dam against elastic buckling is governed by the top arch ring
按照拱梁分載法的思想,用彈性穩定理論分別對拱壩的拱圈和懸臂梁的抗屈曲穩定性進行了分析,得出拱壩的抗屈曲穩定性由壩頂拱圈控制的結論。Arched buckling structure damage under semi - cross load
半跨荷載作用下拱結構的屈曲破壞Secondary bifurcation buckling behavior of elastic - plastic arch
拱結構的彈塑性二次分岔屈曲性能This thesis used along caldwell ' s direct calculation method of the ultimate strength of ship hull girders, considered the double bottom and upperwing tank to ship ultimate strength contribution, first defined the stress distribution of the whole section of the ship girders. that is : in the sagging condition, deck and side shell of nearby deck remain the ultimate bucking strength, double bottom remain the yield stress. and the other parts keep elasticity
本文沿用caldwell等人直接計算船體極限強度的思想,考慮雙層底和頂邊水艙對船體極限強度的貢獻,首先將船體梁整體破壞時剖面應力分佈確定為:在中垂狀態下,甲板及甲板附近的舷側均屈曲,雙層底區域則均屈服,其他部分保持彈性狀態;在中拱狀態下,雙層底及之間的底舷側均屈曲,甲板及頂邊水艙區域均屈服,其他部分則保持彈性狀態。When there is original stage support only, the load ratio of surrounding rock gets more and more bigger with the increasing of crust stress, correspondingly, the load ratio of initial stage support gets smaller. when the initial stage support and the second support act each other, the load ratio of surrounding rock is more than fifty percent, and it has little change with the increasing of crust stress. the whole analysis of the surrounding rock and support shows that the bottom arch of liner and the feet of liner have serious stress concentration, so do the sidewalls and the foot of a wall of the surrounding rock
通過屈曲理論分析結果對比表明,彈性屈曲和突變失穩分析的結果比非線性屈曲分析的結果要大得多,非線性分析由於考慮了材料非線性和幾何非線性,因而結果與實際接近實際;當只有初期支護時,隨著地應力的增加,圍巖的荷載分擔率增大,相應地,初期支護的荷載分擔率就減小了;當有初期支護和二次襯砌共同作用時,圍巖的荷載分擔率在50以上,這一分擔率隨地應力的增加其變化不大;支護和巖體的整體分析表明,襯砌底拱及拱腳處應力集中嚴重,隧道巖體側墻及墻角圍巖的應力集中也較大。The arch : arms by the side and bend up both knees, then raise the buttocks ; to exercise the muscles in the thigh, buttocks and back
拱橋;屈曲雙腿,提起臀部,放下鍛?大腿,臀部及背部肌肉,注意:由於拱橋運動量比較大,因此做完拱橋后,要休息一下,才做其他運動In summarizes the predecessor to the segmental arch surface and outside in flexure critical load computational method foundation, with the principle of the minimum potential energy, an analytical solution for the lateral critical bucking load of cable stayed arch bridge is studied
在總結前人對圓弧拱的面內,面外屈曲臨界荷載計算方法的基礎上,利用能量法,推導了斜拉拱橋的側傾臨界荷載計算公式。Focuses are then put on the flexural torsional buckling analysis of mono - symmetry i - section arches. closed form solutions are obtained for arches subjected to uniformly distributed radial load and to equal and opposite end moments. effects of different laying positions and of asymmetry of cross - section on buckling loads are included
在這個基礎上,對單軸對稱工字形截面拱在均勻受壓和均勻彎曲條件下的屈曲問題進行研究,給出臨界荷載的理論解答;分析了工字形截面不同放置形式和截面不對稱性對拱臨界荷載的影響,並與已有的理論進行比較。In the end, the steel - reinforced concrete arched bridge ( chun ' an weiping bridge ), which span is 198m, is analyzed by the proposed three - dimensional nonlinear finite element method and also those gained conclusions are directly adopted in the computation. the universal stability coefficient and nonlinear buckling stability coefficient of the bridge are respectively computed, in which the dead load and the live load are assembled according to the criterion. on the other side, the regularities of creep deformation and subsidiary stress of the investigated bridge under the first - stage dead load are carefully researched
最後,將本文所提出的三維非線性分析方法及其主要研究成果直接應用於198m跨勁型骨架式鋼管混凝土拱橋「淳安威坪大橋」的分析計算中,對該橋在最不利恆載和活載組合下的一般特徵值失穩系數和非線性屈曲系數進行了對比研究,並對一期恆載長期作用下該橋的徐變變形、附加應力以及截面應力、應變重分佈規律分別進行了深入研究。The stability of arch dam against elastic buckling has always been ignored
摘要拱壩的抗屈曲穩定性一直是未被重視的問題。分享友人