工程结构火灾响应监测与检测研究进展OA

Fire poses a significant threat to the safety of engineering structures,often leading to component failure and even structural collapse.Currently,there is a lack of a systematic monitoring and detection framework that encompasses fire evolution and structural damage.Achieving real-time perception during disasters and precise assessment post-disaster is crucial for enhancing the fire resistance and toughness of structures.In response to whole-process monitoring and detection demands of structural fires,structural damage and performance assessment are emphasized.Current structural fire safety regulations are reviewed,and the degradation of material properties and thermomechanical response mechanisms at high temperatures are examined.Research advances and extreme-environment applicability are summarized for monitoring and detection devices,including point sensors,distributed optical fibers,infrared thermography,and related techniques.The application of emerging artificial intelligence techniques to fire-induced damage identification and structural response prediction is also reviewed.The results indicate that different material systems exhibit distinct failure modes at high temperatures.Monitoring and detection techniques such as point sensors,optical fibers,and acoustic emission can support structural state perception and dynamic damage characterization at high temperatures,whereas detection accuracy and fire-scene durability require improvement.Computer vision,artificial intelligence,and digital twin technologies can be applied to structural damage identification and structural response prediction,but the generalization capability of intelligent algorithms remains to be enhanced.