Post-creep buckling load resistance of recycled aggregate concrete-filled steel tubes: Numerical modelling and calculation method

Key Points

• Buckling load resistance improves with optimized concrete-filled steel tubes using recycled aggregate in structural designs.
• A significant increase of 25% in load resistance was observed in experiments comparing conventional with recycled aggregate materials.
• Analytical assessment utilizing numerical modelling methods to evaluate the post-creep behavior of tube structures.
• Improved understanding of load resistance supports the transition to sustainable materials in construction practices.