Where are strong backs attached?

• A. At bracing location
• B. At the end of each panel
• C. Along the top edge
• D. Under the slab

Answer: (A)

Strong backs are part of the temporary bracing system used to stabilize concrete panels as they are erected. They provide a rigid surface for the braces to push against and help transfer the brace load into the panel without concentrating force in a small area. Because of that, they must be attached at the bracing location—where the braces contact the panel—so the force is distributed properly and the panel remains stable. Attaching them at the top edge, the ends of the panel, or under the slab would misalign or over-stress the formwork and panel, offering less stability and risking damage. Therefore, the correct placement is at the bracing location.