built-up steel section是什么意思

用法例句

Design of steel-aluminium composite section column of glass curtain wall;

玻璃幕墙钢铝组合截面立柱的设计

The writers have analyzed completely the strength and stability calculation methods of eccentric compression bars with dual-angle steel combined section which are often used in boiler structural design, deduced the expressive formula calculating the allowable load designed value of bars with the dual-angle steel combined section.

全面分析了在锅炉构架设计中常用的偏心受压双角钢组合截面杆件的强度和稳定性计算方法,导出了计算偏心受压双角钢组合截面杆件允许荷载设计值的表达式,并提供了与强度和稳定计算有关的系列公式,以方便于编程。