i-shaped cross-section meaning in English

工字形截面

The beam has an i - shaped cross - section
梁具有i形断面。
The developed finite element program is then used to investigate the ultimate behaviors of horizontally curved beams with a specified i - shaped cross - section . these curved members are assumed to be simple - supported and subjected to a conce
利用上面编制的非线性有限元程序，针对一特定截面的工字形水平曲梁，研究其在跨中集中荷载作用下的弹塑性工作特性。