Making use of the moment vector and radius vector of rotation, the lateral buckling of thin-walled members are analyzed.
以弯矩矢量和转角向径为工具，分析了薄壁构件的弯扭屈曲。
Based on the displacement variational principle, a new element is developed for buckling analysis of thin-walled members with shear lag effect in the present paper.
根据位移变分原理，本文提出一种纯压或纯弯薄壁杆件稳定分析的新单元。
The displacement variational principle was used to develop the spline finite member element method for buckling analysis of thin walled members with shear lag effect.
根据势能驻值原理 ，提出在横向荷载作用下薄壁杆件稳定分析的样条有限杆元法。
Torsional loads produce warping displacements in thin-walled members. Its influence on strength, stability and vibration of thin-walled members must be considered in many cases.
薄壁构件在扭转荷载作用下截面产生翘曲变形，在强度、稳定和振动的计算中应考虑到截面翘曲变形的影响。
As a main indicator of structural stability, the total potential energy equation for thin-walled members is widely referred to in academeic research and practical design of steel structures.
薄壁构件的总势能方程在结构稳定分析和工程设计中具有十分重要的地位和意义，是进行结构稳定计算的基础和钢结构设计规范中制定相关设计公式的依据。
On the base of the general theory of thin-walled members, we deduce a new critical moment formula of steel beam under transverse loads which pass the shear center and parallel to the main axis.
就国内现有的薄壁钢梁弯扭失稳理论进行了分析，从薄壁杆件的一般理论出发，推导出荷载过截面弯心并与主轴平行的受弯钢梁的临界弯矩公式。
The torsion of composite beams of steel and concrete and the limit analysis based on the theory of twisted members with thin walled open section and restraint of warping are discussed.
对钢与混凝土组合梁扭转进行了探讨，提出了以开口薄壁杆件的约束扭转理论为基础的扭转极限分析方法。
The torsion of composite beams of steel and concrete and the limit analysis based on the theory of twisted members with thin walled open section and restraint of warping are discussed.
对钢与混凝土组合梁扭转进行了探讨，提出了以开口薄壁杆件的约束扭转理论为基础的扭转极限分析方法。
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