Some problems are discussed about the in-plane stability designing of light-weight portal frame in current code of China.
针对现行规程对于轻型门式刚架钢结构稳定设计中存在的不足,用有限元法进行了平面内整体稳定研究。
A beam or a column often supports other members which participate in the buckling action, and significantly influence its in-plane stability and out-of-plane stability.
梁或柱为其连接的其他构件提供支撑,同时,与梁或柱相连接的构件也为梁或柱提供约束作用。这些约束作用极大地影响着梁或柱的平面内稳定和平面外稳定。
In the mid-column design of gabled frames, the selected solid web section, isn t satisfied by in-plane stability checking because of the biggish out-plane effective length.
门式刚架的中柱设计中,常因为平面外计算长度较大,所选实腹式截面无法满足平面外稳定验算,从而导致用钢量增加。
The in-plane stability formula of the lattice beam-columns derived from the edge yield criteria also applies to the castellated beam-columns, and the results are conservative.
由边缘屈服准则导出的格构式压弯构件平面内稳定计算公式,同样适合蜂窝式压弯构件弯矩作用平面内稳定计算,且结果偏于安全。
When the in-plane stability of such arch is in control of the bridge design, Transverse wind load has a little influence on the stability factor and ultimate load carrying capacity.
当此类拱桥出现面内稳定控制设计时,横向风载的作用对拱桥的稳定系数和极限承载力影响较小。
The method assigns all poles of the closed system to a special region in the left side of the complex plane to make the closed system obtain a desired degree of stability.
该方法把闭环系统的全部极点配置在复平面左半面的一个特定的区域之内,使闭环系统具有预期的稳定度。
So, a dynamic analysis method for the stability of anchored rock mass containing the continuous structural plane will be founded on the energy method in this article.
因此,本文将以新的思路,从能量角度建立一种针对含连续结构面加锚岩体的稳定性动态分析方法。
This paper analyses grouting reinforcement's influence on slide plane and surrounding rock stability during the construction in Caijiapo tunnel, using the elastoplastic finite element method.
采用弹塑性有限元法分析了柴家坡隧道在施工过程中注浆加固对滑动面和围岩稳定性的影响。
The stability analysis in Nierji Project is simplified as the plane seepage analysis.
尼尔基水利枢纽工程渗流稳定分析简化为平面稳定渗流。
This paper analyses grouting reinforcements influence on slide plane and surrounding rock stability during the construction in Caijiapo tunnel, using the elastoplastic finite element method.
采用弹塑性有限元法分析了柴家坡隧道在施工过程中注浆加固对滑动面和围岩稳定性的影响。
The field, which it can be applied in, has expanded from plane problem to 3D problem, from structural stress analysis to structural optimize, from static balance to dynamic stability.
他已由弹性力学平面问题扩展到空间问题和板壳问题,由平衡问题扩展到稳定问题与动力问题,由结构的应力分析扩展到结构的优化设计。
The retaining wall for remaining stability of slope are all designed as plane strain problem in elastic theory.
维护边坡稳定的挡土墙设计,都是按弹性力学平面应变问题分析的。
The stability of a tippe top rotating on a slightly rough horizontal plane is considered in this paper.
本文讨论微粗糙平面上翻身陀螺绕直立的极轴永久转动的稳定性。
The researches about this kind of members mainly focus stress analysis and in-plane inelastic stability.
研究内容主要是此类构件的应力分析和平面内的弹塑性稳定。
An accurate method for slope stability analysis is provided in this paper, with which the equilibrium of force and moment, and the yield conditions on the sliding plane will be reached.
本文对一般性边坡,给出了满足力与力矩平衡及滑动面上屈服条件的稳定性的精确分析方法。
Based on the geometric non-linear analysis, the in-plane global stability of Space Lattice Tilted Column Frame of Triangle Section(SLTCF)is studied.
从结构的几何非线性分析着手,研究截面为三角形的空间格构式斜腿刚架的平面内整体稳定。
For the rock slope with planar failure surface, the structural plane plays a controlling role in the stability of slope.
对于平面滑动型的岩质边坡,结构面对边坡的稳定性起着控制作用。
Besides this paper deduces the theoretical formulae about the stability in the plane of the whole of the structure adopting the method of initial parameter.
在对结构整体平面内稳定分析时,采用初参数法进行理论推导。
This paper presents a study of linear stability in plane of cable-arch structure by using finite element approach with beam and cable elements.
本文应用有限单元法对索-拱杂交结构平面内线性稳定性研究。
Rock slope stability is mainly controled by the rock's structure plane. The traditional searching methods used in soil slope's stability analysis are difficult to apply to the rock slope.
岩质边坡的稳定性主要由岩体结构面控制,传统的用于土质边坡稳定分析的滑动面搜索方法很难适用于岩质边坡。
In the dimension design of coal pillars in strip mining, presently, most of them are carried out by analyzing strength stability, without considering the effect of weak plane in coal pillar.
在条带开采煤柱尺寸设计中,目前大多数是采用强度稳定性分析的方法,而没有考虑弱面对煤柱稳定性的影响。
In this paper a new parameter plane method is proposed and is used to design the stability augmentation control system of a certain type of aircraft and satisfactory results are obtained.
本文提出了一种新的参数平面法,设计了某型歼击机的控制增稳系统,并取得了满意的结果。
For the out-of-plane stability, design formulae are also proposed for sway buckling and non-sway buckling in the out-of-plane.
对于平面外稳定计算,考虑了平面外是有侧移失稳和无侧移失稳两种情况,分别给出了公式。
The stability calculation of chords on open lattice beyond the main truss plane is discussed in the article. A calculation example is presented.
本文讨论了敞开式桁架弦杆的平面外稳定性计算方法,并给出了计算实例。
Based on the method of calculating the elastic support continuous beam bridge's steady, a practical and simplified method is provided to analyze girder's stability in plane.
主要在弹性支承连续梁临界轴力求解方法的基础上。提出自锚式悬索桥主梁临界轴力的实用简化计算方法。
In the dimension design of coal pillars in strip mining, presently, most of them are carried out by analyzing strength stability, without considering the effect of weak plane in coal pillar.
针对在条带开采煤柱尺寸设计中大多数是采用强度稳定性分析的方法,而没有考虑弱面对煤柱稳定性的影响,由于弱面的存在,煤柱常常会因抗剪强度不够而产生剪切破坏等问题。
In the dimension design of coal pillars in strip mining, presently, most of them are carried out by analyzing strength stability, without considering the effect of weak plane in coal pillar.
针对在条带开采煤柱尺寸设计中大多数是采用强度稳定性分析的方法,而没有考虑弱面对煤柱稳定性的影响,由于弱面的存在,煤柱常常会因抗剪强度不够而产生剪切破坏等问题。
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