section beam

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。

互联网摘选

Fiber-optic grating sensing based on Loop thin-walled ring section beam is proposed and demonstrated. The temperature and stress can be measured simultaneously using only one fiber grating.

提出将圆环形薄壁截面梁应用于光纤光栅传感，用一个光栅实现了对温度与应力的同时区分测量；

互联网摘选

Taking a thin-walled beam with channel cross-section as an example, the dynamic elastic buckling was investigated.

以槽形断面薄壁梁为例进行了算例计算和分析。

互联网摘选

Analysis of local warping and torsional rigidity of spot-welded thin-walled box section beam with different wall thickness

异壁厚点焊箱形截面薄壁梁的局部翘曲和扭转刚度分析

互联网摘选

Fiber-optic grating sensing based on thin-walled ring section beam

基于圆环形薄壁截面梁的光纤光栅传感研究

互联网摘选

By use of the FEM program, the paper contrasts the differences of static calculation and stability analysis results of tapered portal frame structure analyzed by uniform section beam elements and tapered section beam elements respectively.

利用该程序，比较了分别用等截面梁单元和变截面梁单元对变截面刚架进行静力计算和平面内稳定性分析的差异。

互联网摘选

This paper gives an an illustrational proof to beam intensity distribution for narrow beam of rectangular cross section, and presents an accurate expression to calculating beam intensity.

本文对截面为矩形的窄束给出束强分布的图解法证明，并提出计算束强的精确公式。

互联网摘选

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。

互联网摘选

The bi prestress concrete beam is prestress concrete beam spontaneous strike adopting tension prestress steel bar and precompressed prestress steel bar at one time to establish prestress on the section of the beam.

双预应力混凝土梁是同时采用张拉预应力钢筋和预压预应力钢筋而在梁截面上建立预应力的预应力混凝土梁。

互联网摘选

Thermal Deformation and Buckling Analysis on Large Space Structures Including Thin-walled Open Section Beam

含开口薄壁杆件的大型空间结构热变形与热屈曲分析

互联网摘选

The effect and its optimization of ring beam in soldier pile support system in deep excavation is analyzed which includes the mechanism of the optimal section design of ring beam as well as the relationship between length of pit and ring beam effect.

从圈梁作用机理、圈梁截面优化、圈梁效应与基坑边长的关系三方面对基坑支护桩结构圈梁进行优化设计。

互联网摘选

Thermal buckling is a common problem for large flexible space structures consisting of thin-walled open section beams. A two-node thin-walled open section beam element was developed with a warping degree of freedom.

针对含开口薄壁杆件的大型空间柔性结构热屈曲问题，发展了一种包含翘曲自由度的二节点开口薄壁杆单元。

互联网摘选

Exact calculating formula of area moment of inertia of H-section steel beam is instead of its approximate calculating formula, So transfer matrix method of tapered H-section steel beam about its internal force analysis is established.

用H型钢梁截面惯性矩较精确的近似计算公式来代替其精确计算公式，从而建立了楔形H型钢梁内力分析的传递矩阵法。

互联网摘选

Based on the fundamental theory of warping torsion on spot-welded thin-walled box section beam, the characteristic of torsion distortion for a beam with concentrated load on the middle and with uniformly distributed load along the beam are studied.

基于点焊薄壁构件翘曲扭转理论，分析和研究点焊双帽箱型横截面薄壁构件中部有集中载荷和整个构件长度上有均匀分布载荷作用时的扭转变形特性。

互联网摘选

This paper describes a two node thin-walled open section beam element with 14 degrees of freedom used to analyze the torsional vibrations.

为了解热诱发弯扭耦合振动的机理，发展了一种14个自由度的二节点开口薄壁梁单元。

互联网摘选

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。

互联网摘选