1) tapered section
变截面箱形
2) variable cross-section box column
箱形变截面柱
1.
In order to comprehensively grasp stable performance of variable cross-section box column and influence of various parameters on its stable performance,considering the effect of web tapering radio and section s ratio of length to width on variable cross-section box column eigenvalue buckling,it is analysed its elastic overall buckling by finite element software ANSYS.
为了全面掌握变截面箱形轴压柱的稳定性能以及各种参数对其稳定性能的影响,采用有限元软件AN- SYS对箱形变截面柱进行弹性整体屈曲分析。
3) box section girder
变截面箱形梁
1.
Based on the similitude between the differential equation for distortion of box section girder and the differential equation for beam on elastic foundation, We develop in this paper the stiffness matrix for distortion of box girder with various cross sections.
利用箱形梁的畸变微分方程和弹性地基梁挠曲微分方程之间的比拟关系 ,推导出变截面箱形梁畸变分析的单元刚度矩阵 ,该单元刚度矩阵与一般杆系结构的单元刚度矩阵完全相似 ,使得箱形梁桥畸变分析可按一般杆系结构的刚度法进行 。
4) box section
箱形截面
1.
Research on application of change from hyperbolic arch section into box section
改双曲拱截面为箱形截面技术的应用研究
2.
By comparing the results of large scale model test with that of spatial finite-element analysis,the coefficients of shear lag about the box section of Luzhou Tai an Yangtze River Bridge under several typical loads are gained.
通过大比例模型试验与空间有限元分析结果的比较,得到了泸州泰安长江大桥箱形截面在几种典型荷载作用下的剪力滞系数,并对设计提出了几点建议。
3.
The hydraulic loads,which should be considered in design process,are discussed,including rising force,equivalent static hydraulic load,and dynamic rising force due to difference of water header between inner and outer of box section.
讨论了箱形截面漫水桥设计中应考虑的水力荷载 ,包括浮力、等效静水力和由箱内外水头差引起的动态浮力等 。
5) box-section
箱形截面
1.
Summary of shear lag theories of box-section;
箱形截面剪力滞理论综述
2.
Design resitant to twisting and simplification for reinforced concrete box-section beam;
钢筋混凝土箱形截面构件的抗扭设计及其简化
3.
To reduce the steel quantity and improve the stability of columns, a simplified method of selecting the section of box-section columns is presented.
箱形截面柱是高层钢结构建筑中的主要竖向构件,对柱截面的选择直接影响整个结构的用钢量。
6) thin_walled box column with variable cross_section
变截面箱形薄壁立柱
1.
For a thin_walled box column with variable cross_section, the three governing equations for torsional_flexural buckling are ordinary differential equations of the second or fourth order with variable coefficients, so it is very difficult to solve them by means of an analytic method.
变截面箱形薄壁立柱弯扭屈曲的三个控制方程是二阶或四阶变系数的常微分方程，很难用解析的方法求解·本文用多项式来近似截面的几何特性和微分方程的某些系数，用能量原理和伽辽金法分别导出了计算这种立柱弯曲和扭转屈曲荷载的近似公式，用数值算例来验证了所给解答的正确性·本文的计算结果为论证变截面箱形薄壁立柱的稳定性提供了依据·本文具有实用价值
补充资料：天柱山天柱峰
天柱山天柱峰
天柱峰又称为皖伯尖，万山尖。《道书》称为司命真人发祥所都，海拔1488.4米，孤立晴宵，顶天立地，石骨嶙峋，峭立如柱。五指、莲花、天池、含珠、飞来、月华诸峰拱卫左右，奇松、怪石、云海、佛光、各领风骚。李白《江上望皖公山》诗云：“奇峰出奇云，秀水含秀气。”白居易《题天柱峰》诗云：“天柱一峰擎日月，洞门千仞锁云雷。”
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