torsion box

Box section beams, possessing strong bending rigidity and resisting torsion, have been applied widespread in the construction of large-span bridges.

箱形截面梁于具有较大的抗弯刚度和强大的抗扭性能，因而在大跨度桥梁中得到广泛应用。

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。

A new approach of calculating the geometrical properties of thin-walled box girder section by space finite element analysis software was put forward through analyzing the torsion properties of thin-walled box section member.

通过对薄壁箱形截面杆件扭转特性的分析，提出利用空间有限元分析软件的分析功能来计算薄壁箱梁截面几何特性参数的新途径。

The longitudinal deformation of the element block is governed by the compatibility conditions between the blocks, hence the three-dimensional problem of torsion of the box-girder is reduced to a one dimensional one.

梁段单元沿纵轴线的变形规律由节段间变形的连续条件控制。将箱形梁扭转的空间问题简化为一维问题。

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。