| 1. | Being an unsymmetric section , an unequal angle section is torsional - flexural buckling 不等边角钢截面为无对称轴截面,绕任意轴失稳均为弯扭失稳。 |
| 2. | An equal angle section , being a singly - symmetric section , will buckle in a torsional - flexural pattern about any axis except for flexural buckling about the unsymmetric axis 等边角钢截面为单轴对称截面,除绕非对称轴失稳为弯曲失稳外,绕其他任意轴均为弯扭失稳。 |
| 3. | ( 2 ) under the base of combined torsional and flexural buckling model given by timoshenko and gere ( 1961 ) , a mechanical model of wall stud in this paper considering bracing effect from wallboard is presented ( 2 )在timoshenko - gere ( 1961 )弯扭屈曲模型的基础上,通过简化推导,提出了考虑墙板的支承效应后,墙体立柱计算的力学模型。 |
| 4. | For each stiffener element , the average stress - strain relationship under axial load as a beam - column in the flexural buckling mode is derived based on the approximate method , proposed by gordo and guedes scares 这种方法对传统船型是有效的,但是它不能给出船体极强度的真实估算,而且当应用于非传统船型时其计算结果不能令人满意。 |
| 5. | Although this can avoid the complicated calculation , it is difficult to calculate a member precisely and safely because the influence of imperfection for torsional - flexural buckling is not same as the one for flexural buckling 虽然这样可以避免复杂计算,但因缺陷对弯扭失稳的影响不同于对弯曲失稳的影响,使得计算的精确度和安全度难以保证。 |
| 6. | In active code for design of steel structures , axially compressed members are calculated not as torsional - flexural buckling but as flexural buckling with equivalent slenderness ratio , residual stress and initial geometry imperfection are also taken into account as flexural buckling 我国现行钢结构设计规范( gb50017 )采用换算长细比的方法将弯扭失稳等效为弯曲失稳,其残余应力和初始几何缺陷均按弯曲失稳考虑。 |
| 7. | In this paper , the buckling behavior of cold - formed angle members is studied by non - linear finite element method . the influence of the width - thickness ratio of the single cold - formed angle column under axial load is analysed . the criteria of flexural buckling and torsional - flexural buckling for cold - formed egual - leg under axial loads is presented . according the calculating results of the ansys finite element method , the stability - coefficient formulas are simulated for the cold - formed loading single angle members of flexural buckling and torsional - flexural buckling 本文运用非线性有限元法对冷成型单角钢的稳定性能进行了研究,分析了宽厚比对冷成型单角钢轴压杆稳定性能的影响,给出了等边冷弯角钢发生弯曲屈曲和弯扭屈曲的判断条件,根据ansys有限元的计算结果拟合出了冷成型单角钢轴压杆在发生弯曲屈曲以及在发生弯扭屈曲时的稳定系数公式,在此基础上得出了冷成型单角钢轴压杆在所有长细比情况下的稳定系数公式。 |
| 8. | In this paper , torsional - flexural buckling of single - angle members is researched deeply and systematically by ultimate strength theory and general fem analysis software ansys , and is contrasted with some codes , as a result the simple and practical formulas for stability coefficient are recommended for design purpose 本文采用极限强度理论和通用有限元分析软件ansys ,系统深入地研究了单角钢轴心受压构件的弯扭失稳,并与多本规范进行了对比分析;在此基础上提出简单实用的稳定系数计算公式,以便工程设计参考。 |