Large bronze sculptures require meticulous structural reinforcement to withstand environmental stress and maintain artistic integrity. The most common techniques include:

1. Internal Armatures: Steel or stainless steel frameworks provide core support, often welded or bolted to distribute weight evenly.

2. Reinforced Bases: Heavy-duty plinths or embedded foundations prevent tilting, especially for freestanding pieces.

3. Cross-Bracing: Metal rods or tension cables internally stabilize limbs or extended elements.

4. Hollow Casting: Reducing weight by casting hollow sections with strategic thickness prevents stress fractures.

5. Welded Seams: Precision welding at joints ensures durability, often reinforced with additional metal plating.

Modern engineering also incorporates seismic considerations, while traditional methods like lost-wax casting integrate reinforcements during molding. These techniques balance artistic vision with structural resilience, ensuring bronze masterpieces endure for centuries.