2) closed thin_walled beam
闭口薄壁截面梁
3) thin walled piers with closed section
闭口薄壁桥墩
1.
A Yманскип about the thin walled piers with closed section is principle of energy, the calculation formula of the energy of strain about the thin walled piers with closed section is established.
根据最小势能原理 ,用瑞利—里兹法对闭口薄壁桥墩稳定性进行分析 ,导出了考虑自重条件下桥墩的稳定计算公式 。
4) thin-walled member with closed section
闭口薄壁杆件
1.
On the basis of the rigid perimeter assumption,the shear stress formula for the thin-walled member with closed section under restrained torsion is derived.
基于周边不变形理论,推导了闭口薄壁杆件的约束扭转剪应力计算公式,对有关文献中的另一种剪应力公式进行了分析与论证,发现这些文献中对闭口薄壁杆件约束扭转时的纯扭转剪应力和约束扭转剪应力的表达是不正确的,并进行了更正。
5) closed thin wall box beam
闭口薄壁箱梁
1.
Calculation method of the inertia torsion moment of the closed thin wall box beam
闭口薄壁箱梁截面扭转惯性矩的计算方法
6) stepped closed thin walled bar
阶梯形闭口薄壁杆
补充资料：闭口
合上嘴不讲话，也比喻不发表意见：～不言。
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参考词条