![BUILT-UP MEMBER 1 BUILT UP MEMBER](https://excel.civilmdc.com/wp-content/uploads/2021/10/BUILT-UP-MEMBER.png)
Built-up members are used in many structures, such as compression members of trusses or supporting columns. They are composed from two rolled U-sections or four rolled angles. … They are used in the present study, the aim of which is to elaborate the optimum design of such structural parts.