interior column meaning in English

内柱

The floor rested on a system of steel trusses connected between the external columns and the reinforced steel core , leaving out the need for any interior column
大厦内各楼层由钢造的桁架组成，由于钢架连接外柱与钢筋核心，因而无须兴建内柱。
In virtue of a new concept called local influencing zone of a column , a numerical sample was further analyzed to compare its internal forces and displacements with an interior column added or not , and thus provide some feasible suggestions for engineering - oriented applications of large space three directional composite single layer grid
通过引入柱的局部影响区域这一全新概念，系统总结了加入内部支承柱前后网架结构的内力和变形规律，进而为进一步的工程应用提供了可行性建议。