Classical thin-walled beam theory can not handle sectional deformation.
薄壁杆件的截面变形是经典薄壁杆件理论无法描述的。
The advanced point estimate method is presented to evaluate the random properties of the torsion of thin-walled beam.
提出了改进点估计法来计算薄壁梁结构扭转的概率特性。
This paper examines the shearing flow of any thin-walled beam with open section and the calculation of the coordinates of bending center.
研究任意开口薄壁截面杆的剪力流和弯曲中心坐标的计算问题，利用合力矩定理导出计算公式，给出算例。
A simple calculation expression of the shearing flow and the coordinates of bending center is introduced for the thin-walled beam with open section.
针对开口薄壁截面梁的剪流和弯心坐标的复杂计算问题，导出了简便计算公式。
Based on the space beam element analytical model, a new thin-walled beam element model considering the restrained torsion was derived in this paper.
在有限元空间梁元模型的基础上，导出了考虑杆件约束扭转的薄壁梁元分析力学模型。
By an example, the warping theory of the thin-walled beam is compared with and distinguished from GBT, while the contribution and the defect of the former is presented.
本文通过算例对广义梁理论和薄壁杆件翘曲理论进行了比较研究，并指出了后者的贡献和局限性。
The method for torsional analysis of ship hull as a stepped thin-walled beam using the restrained torsion theory has been applied widely in the field of naval architecture.
将船体作为阶梯薄壁梁，用薄壁梁的约束扭转理论进行扭转强度分析的方法，是目前国内外造船界普遍使用的方法。
Both the three-dimensional potential theories and thin-walled beam theories are applied to the hydroelastic analysis of container ships with large deck openings in this paper.
本文提出利用三维势流理论和薄壁梁理论计算大开口集装箱船的水弹性问题。
In this paper, on the base of Ullmanski's hypothesis, the unified beam theory of thin walled open and closed cross-section and the governing differential equations are established.
本文将开口和闭口薄壁理论统一在乌曼斯基假设之下，建立开口和闭口薄壁杆件统一的基本微分方程序。
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。
In this paper, for the thin walled linear strengthened steel box beam, the strength and valid width ratio of flange is investigated under the condition of elastoplastic limit state.
对由线应力性强化材料制造的薄壁钢箱梁在弯曲极限状态下的强度及有效宽比进行了分析。
The design of the main structure, foundation, stage thin-walled tube of Shanghai Theatre as well as the cantilever platform beam of its audience hall are introduced.
主要介绍上海大剧院结构设计概况、基础设计、舞台薄壁筒体及观众厅挑台梁设计等。
For calculating stress of BNS body structure, a thin-walled eccentric beam element witch accords with demands is introduced in this paper. The eccentricity existing in truthful structure.
针对客车车身结构的受力计算，本文提出了一种更符合实际结构的薄壁偏心梁单元。
The structure of thin-walled box girders are commonly applied in some large span continuous beam bridges and rigid frame bridges in our country.
我国已建成的一些大跨径连续梁桥及大跨径连续刚构桥都普遍采用薄壁箱形截面。
By means of theoretic analysis and digital imitation, an investigation about the flexural-torsional buckling of thin-walled steel beam is made in this paper.
本文综合运用理论分析、数值模拟等方法研究了薄壁钢梁的弯扭屈曲问题。
After a study on this hypothesized spring beam, a method for analyzing warping torsion on spot-welded thin-walled box section beam has been presented.
通过对这种具有“假想弹簧”的半闭口截面构件的研究，提出了一种分析点焊箱型截面薄壁构件的翘曲扭转的新方法。
The strain of the thin-walled ring section beam is investigated theoretically and experimentally. The result shows the local strain varies as the cosine function of twice the positional angle.
对圆环形薄壁截面梁的应变进行了理论与实验分析，结果表明圆环形薄壁截面梁各点应变与该点角度的二倍呈余弦变化关系。
The strain of the thin-walled ring section beam is investigated theoretically and experimentally. The result shows the local strain varies as the cosine function of twice the positional angle.
对圆环形薄壁截面梁的应变进行了理论与实验分析，结果表明圆环形薄壁截面梁各点应变与该点角度的二倍呈余弦变化关系。
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