長柱彎曲 的英文怎麼說
中文拼音 [zhǎngzhùwānqū]
長柱彎曲
英文
buckling of long column-
Experimental study of the aseismic behavior of self - compacting high strength concrete frames
圓鋼管混凝土壓彎長柱非線性屈曲承載力的理論研究According to the elastic bucking theory this paper reviews and compares the calculations that such member bend around the reat axis and the hollow axis as well as bend with torsion around the hollow axis. here this paper presents a formula of calculating b used in with the h - shaped anglicizing element. meanwhile, this paper deduces out a formula of calculating b. by, which the member could be controlled to only buckle around the real axis
本文根據彈性屈曲理論對雙肢格構式單軸對稱綴板柱繞實軸、虛軸以及彎扭屈曲進行了計算分析和比較，提出了繞虛軸側向屈曲的換算長細比_ （ oy ） = （ y ~ 2 + l ~ 2 ） ~ （ 1 / 2 ）中的值用h計算單元指出的計算公式，同時推導出了單軸對稱綴板柱只出現繞實軸彎曲屈曲的最小肢間間距b 。Abnormal beam ' s flexural stiffness and the effect on steel frame column ' s effective length
非規則梁的彎曲剛度及其對鋼框架柱計算長度的影響The effect of different sizes of sections, modes and values of residual stresses are studied. through the analysis, the conclusion is arrived at that the universal slenderness ratio should be used to better correlate the stability of box section beams with the member length instead of the out - of - plane slenderness, and the stability coefficient is taken to be 1. 0 for practical used box girder. then, the elastic critical loads of box section beam - columns are obtained based on the gjelsvik theory, and the relationship between axis force p and moment m is given
最後，運用ansys通用有限元程序的beam189單元，引入初彎曲和殘余應力的影響，用考慮幾何和材料雙重非線性的有限元求解格式求得箱形柱在不同軸力和彎矩比例作用下的彈塑性極限承載力，通過對十幾個不同截面尺寸構件在不同長細比下的承載力計算，發現在軸力p遠大於彎矩m時，構件將是平面外失穩控制，而當軸力p遠小於彎矩m時，構件則以平面內失穩為主。Experimental results show that the new cfrt - column to steel - beam joints proposed in this paper possess good earthquake resistant capacity. the infilled concrete benefit to restrain the buckling deformation of column webs, increase the strength and stiffness of the joint. the lengthened stiffener can transfer much more beam moment, make the strength of the joint increased
試驗表明，在保證焊接質量的前提下，本文提出的新型方鋼管混凝土柱?鋼梁的節點具有良好的抗震性能；內填混凝土有利於抑制柱腹板的屈曲變形，增加節點的承載力和剛度；加勁肋長度的增加有利於傳遞梁端彎矩，使節點的承載力提高。It is found that initial brace deflections have significant effect on the stiffness and strength requirement which are interdependent ; and there is a very unfavorable interaction between lateral braces and columns imperfections. the calculating simplified model of this paper is not same with that of the former references. although this model is correspondingly conform to actual thing, the formula of lateral braces will be applied to practice after it is proved by experimentation
首先研究了完全理想情況下，得出了時柱計算長度減至一半所需的剛度；接著綜合考慮了柱子和撐桿的彎曲，利用有缺陷桿的軸壓切線模量概念和分枝屈曲理論，考慮屈曲前變形和內力的影響，同時用ansys有限元軟體進行分析，得出了同時考慮撐桿的剛度和強度的計算撐桿面積和撐桿設計內力的公式。分享友人