Structural Optimization and Performance Evaluation of Spain's 3D-Printed Concrete Bridges Using AI-Based Design Approaches (2025-09)¶

This paper presents a comprehensive study on the structural optimization and performance evaluation of 3D-printed concrete bridges through the application of artificial intelligence (AI)-based design approaches. The increasing adoption of 3D printing technology in construction has paved the way for novel design methodologies that enhance efficiency, sustainability, and structural robustness. Despite significant progress, optimizing structural performance remains a critical challenge, particularly in complex structures like concrete bridges. The methodology of this research involves integrating computational design techniques with AI algorithms such as genetic algorithms, neural networks, and machine learning for the purpose of topology optimization, material distribution optimization, and performance evaluation. Experimental validation is conducted through case studies involving AI-optimized 3D-printed bridge models, where structural analysis and load-bearing tests are performed to assess mechanical properties and durability. Results indicate that AI-based design techniques significantly improve the structural efficiency and resilience of 3D-printed concrete bridges. Moreover, comparisons between conventional design methods and AI-optimized models reveal notable improvements in load-bearing capacity, material utilization, and overall performance. However, various challenges persist, including material limitations, high computational demands, and a lack of standardized testing frameworks. The paper concludes by highlighting the potential of AI-driven design methodologies in revolutionizing 3D-printed bridge construction. Recommendations for future research include exploring advanced AI algorithms, developing standardized evaluation metrics, and enhancing the integration of smart sensing technologies for real-time monitoring and predictive maintenance.