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畸变屈曲
相关语句
  distortional buckling
     Distortional buckling of thin-walled cold-formed structure was not mentioned explicit by GB50018-2002 specification.
     对于冷弯薄壁结构畸变屈曲我国冷弯规范GB50018-2002并没有明确提到,也没有相应的设计建议。
短句来源
     REVIEW AND ANALYSIS OF EXPERIMENTAL AND THEORETICAL RESEARCHES ON DISTORTIONAL BUCKLING OF COLD-FORMED THIN-WALLED STEEL MEMBERS
     冷弯薄壁型钢构件畸变屈曲试验和理论研究综述及分析
短句来源
     The design methods for distortional buckling in specification AS/NZS 4600:1996 and Direct Strength Design Method(DSM) in specification NAS 2004 haven't considered the adverse interaction between local and distortional buckling.
     澳洲规范AS/NZS 4600:1996及北美规范NAS 2004中关于发生畸变屈曲构件承载力的计算方法没有考虑局部屈曲和畸变屈曲相关作用的不利影响。
短句来源
     Local and distortional buckling of cold-formed lipped-channel column with V-stiffened web under axial compression force are investigated in this paper, the paper includes the fallowing main contents: (1)Elastic local buckling critical stress is predicted by eigenvalue buckling analysis of ANSYS, including interaction of the connected element.
     本文对腹板V形加劲的冷弯卷边槽钢在轴向压力作用下的局部屈曲和畸变屈曲进行了研究,包括以下主要内容:(1)采用有限元分析软件ANSYS的特征值屈曲分析程序计算了有限元模型的弹性局部屈曲临界应力,分析中考虑了局部屈曲时的板组约束作用,在对大量计算结果Boltzmann拟和的基础上,得到了弹性局部屈曲临界应力的计算公式。
短句来源
     Experimental study on distortional buckling of high strength cold-formed steel lipped channel columns under axial compression
     高强冷弯薄壁型钢卷边槽形截面轴压柱畸变屈曲试验研究
短句来源
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  “畸变屈曲”译为未确定词的双语例句
     This paper further simulate the mode with the ABAQUS to gain a useful model,evaluate the influence of initial imperfection and bilateral eccentricity . Test results are compared with those from the finite-element analysis.
     鉴于试验中存在双向偏心以及初始缺陷等因素,本文进一步采用有限元分析软件ABAQUS试验构件进行模拟,得出基准有限元模型,分析上述因素对畸变屈曲荷载以及极限承载力的影响。
短句来源
     LOCAL AND DISTORTIONAL BUCKLINGS OF DIFFERENT INCLINED LIPPED PURLINS
     不同斜卷边檩条的局部屈曲和畸变屈曲
短句来源
     FINITE ELEMENT ANALYSIS OF DISTORTIONAL BUCKLING OF COLD-FORMED CHANNEL COLUMN
     卷边槽钢梁柱的畸变屈曲有限元分析
短句来源
     The Simplified Formula for Calculating the Deflection of Steel-concrete Composite Beams and the Distortional Stability Analysis of Its Negative Moment Zone
     钢—混凝土组合梁挠度计算简化方法和负弯矩区的畸变屈曲分析
短句来源
     It is not a practical load. GB50018-2002 use effective section method to calculate load capacity of cold-form thin-walled structures.
     冷弯规范GB50018-2002并没有明确提出有效截面方法适用于畸变屈曲
短句来源
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  相似匹配句对
     Local Interactive Bucking and Distortional Buckling of Lipped Channels
     卷边槽钢的局部相关屈曲畸变屈曲
短句来源
     LOCAL AND DISTORTIONAL BUCKLINGS OF DIFFERENT INCLINED LIPPED PURLINS
     不同斜卷边檩条的局部屈曲畸变屈曲
短句来源
     ,the distortion power N,the distortion angle (?)
     、畸变功率N、畸变角(?)
短句来源
     The Drawing of Distortion Contour Maps
     畸变图谱的绘制
短句来源
     Buckling of Laterally and Torsionally Braced Beams
     侧向支撑梁的屈曲
短句来源
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  distortional buckling
All three sections have certain post-buckling strength, and the failure modes of most of the specimens contained distortional buckling.
      
Adequate experimental data on unrestricted distortional buckling in bending is unavailable.
      
Above all, test D8C097-7E6W is believed to fail in distortional buckling, and its data is included in subsequent analyses.
      
A series of intermediate lengths were chosen to investigate distortional buckling.
      
A literature study covering the work on strength and local and distortional buckling of slotted light gauge steel has been undertaken.
      
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Gives a formula to evaluate the buckling coefficient of the compressed flange of lipped channel beams by considering the distortional buckling mode, and presents a set of simplified formulae to calculate the limit values of the aspect ratio α for buckling coefficient not less than 4.0 and also minimum values of k f for a above the limit values. The result of the analysis reveals that it is conservative for taking the buckling coefficient k f of a lipped channel beam the same as an axially...

Gives a formula to evaluate the buckling coefficient of the compressed flange of lipped channel beams by considering the distortional buckling mode, and presents a set of simplified formulae to calculate the limit values of the aspect ratio α for buckling coefficient not less than 4.0 and also minimum values of k f for a above the limit values. The result of the analysis reveals that it is conservative for taking the buckling coefficient k f of a lipped channel beam the same as an axially compressed member which is equal to k f =1.35 in GBJ 18-87.

通过对卷边槽钢梁畸变屈曲形式的分析,提出了受压翼缘屈曲系数kf的计算公式,并结合我国常用卷边槽钢的截面尺寸,提出了在受压翼缘屈曲系数kf≥4.0时板件长宽比α的限值以及在板件长宽比超过此限值时kf的最低值。指出了我国现行规范《冷弯薄壁型钢结构技术规范》(GBJ18-87)把受弯卷边槽钢梁受压翼缘的屈曲系数按轴心受压时的1.35考虑过于保守。

For cold formed lipped channels, there are not only interaction between buckling of plate elements, but also two different modes of local buckling, namely the local buckling in common sense and the distortional buckling. Although each of these two modes has its own peculiarity in performance, it is feasible to combine them together in routine design work. It is shown in this article that, in case where a buckling coefficient of 3.0 is adopted for the lipped flange and the lip width is adequate, the...

For cold formed lipped channels, there are not only interaction between buckling of plate elements, but also two different modes of local buckling, namely the local buckling in common sense and the distortional buckling. Although each of these two modes has its own peculiarity in performance, it is feasible to combine them together in routine design work. It is shown in this article that, in case where a buckling coefficient of 3.0 is adopted for the lipped flange and the lip width is adequate, the distortional buckling will not prevail in the design and can then be merged into local buckling calculation. The suggested approach correlates well with the published test data from three different sources.

冷弯卷边槽钢的局部屈曲不仅具有相关性,并且有两种可能形式,即一般意义的局部屈曲和畸变屈曲。虽然两种屈曲模式各有其不同特点,为了便利设计工作,可以把它们结合起来考虑。本文分析指出,当卷边翼缘采用屈曲系数3.0,且卷边宽度足够大时,畸变屈曲不控制设计并可纳入局部屈曲计算之中。建议方法和出自三个不同来源的试验资料符合得很好。

Cold formed thin walled steel purlins, calculated according to Chinese Design Code (GB50018—2002), mostly can not have their section fully effective. Lipped channel and Z section with compression flange not fully effective, have no more any symmetry, so that their stress analysis become quite complicated. In conformity to the working conditions of purlins subjected to gravity load, this paper revealed that distortional buckling does not play a decisive role in this case and thereby releasing the severe restriction...

Cold formed thin walled steel purlins, calculated according to Chinese Design Code (GB50018—2002), mostly can not have their section fully effective. Lipped channel and Z section with compression flange not fully effective, have no more any symmetry, so that their stress analysis become quite complicated. In conformity to the working conditions of purlins subjected to gravity load, this paper revealed that distortional buckling does not play a decisive role in this case and thereby releasing the severe restriction on the effectiveness of plate elements, making the calculation simple and the design less costly in material consumption.

冷弯型钢檩条按(GB50018—2002)计算,截面大多达不到完全有效,需对其作屈曲后的强度计算。而翼缘非全部有效的卷边槽钢、Z形钢毫无对称性,使应力分析计算十分复杂。本文针对承受重力荷载檩条的特点,论证畸变屈曲对设计不起控制作用,从而得出翼缘和腹板全部有效比较宽松的条件,现有卷边槽钢和Z形钢规格大部分全部有效。提出的公式既可简化计算,又可节省钢材。

 
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