What are the three temporary construction loads imposed on the slab that occur during tilt-up construction?

• A. Temporary panel braces, stored construction materials, and crane(s) or ready-mixed concrete trucks
• B. Temporary panel braces, scaffolding, and electrical conduits
• C. Stored construction materials, cranes, and workers
• D. Cranes or ready-mixed concrete trucks, and building equipment

Answer: (A)

During tilt-up construction the slab must carry three temporary construction loads as panels are raised and braced. The first is the load from temporary panel braces, which transfer horizontal and vertical forces as the panels are held in place during erection. The second is stored construction materials placed on the slab, adding a temporary dead/live load that remains until materials are moved away. The third comes from cranes or ready-mixed concrete trucks, including the weight and equipment of the crane and the loads generated during lifting and maneuvering, plus any parked concrete trucks on the slab. These loads are temporary and distinct from permanent structural loads, and they must be accounted for during the tilt-up process.