Cyclic Axial Behaviour of Built-up Cold-Formed Steel Columns

This evening event is organised by the SECED Young Members' Sub-Committee (YMSC) and is chaired by Evangelos Yfantidis. The event will be held in-person at the Institution of Civil Engineers (ICE) in London and will be also broadcast online.

Synopsis

Cold-formed steel (CFS) framing structures provide benefits such as a high strength-to-weight ratio, usage of recyclable steel, and rapid construction. Their lightweight construction is advantageous in earthquake-prone regions.

Built-up cold-formed steel columns are key elements of the shear walls of CFS framing. In CFS strap-braced shear walls, the braces carry the lateral load to the columns, which then transfer the loads to the foundation through hold-down devices and anchor rods. Understanding the cyclic axial behaviour of CFS built-up columns is, therefore, essential for the capacity-based design of CFS strap-braced shear walls.

In this study, six specimens of built-up CFS columns were tested with an axial cyclic protocol at the Heavy and Light Structures Lab at the University of Bristol. The first set of three specimens consisted of two back-to-back C sections joined together, while the other three were made of U sections using self-drilling fasteners. Additionally, two specimens were created by combining two Sigma sections with bolts. These specimens were then subjected to cyclic and monotonic loading tests at Imperial College London's lab.

About the speaker

Mohammad Numan Aloko

Mohammad Numan Aloko is a PhD student at the School of Civil, Aerospace, and Mechanical Engineering, University of Bristol, working on cold-formed steel structures for the application of rapid and sustainable construction under the supervision of Dr Raffaele De Risi and Dr Flavia De Luca. He received his B.Eng. from Ege University, Turkey, and his MSc in Structural Engineering at UiTM, Malaysia.

Further information

• In-person attendance at this meeting is free and no registration is required. Seats are allocated on a first come, first served basis. Tea, coffee and biscuits will be served from 5.30pm - 6pm. 
• The event will also be broadcast online. To attend the presentation online, please register for the event prior to joining via this link. The registration process will provide you with the link you need to join the event.

The event will be preceded by SECED Young Members AGM 2024 (6-6.30PM). For further information, please contact Evangelos Yfantidis (This email address is being protected from spambots. You need JavaScript enabled to view it.).