预应力混凝土结构性能评价技术研究进展及展望

Research Progress and Prospect of Performance Evaluation Techniques for Prestressed Concrete Structures

预应力混凝土结构自引入我国以来,经历了几十年消化吸收和再创新过程,已成为实现结构性能再提升和满足多样化设计需求的重要结构形式之一,应用广泛,且目前已建成了大量的预应力混凝土建、构筑物。从发展历程、性能评价需求、预应力检测监测技术、服役性能评价方法等方面阐述了预应力混凝土结构服役性能评价领域的关键技术和发展现状;从理论、技术、应用三方面展望了预应力混凝土结构未来发展趋势;重点提出了不确定性评价理论、材料-结构一体化评价技术和智能化服役性能评价方法等未来发展方向;旨在为预应力混凝土结构领域研究和实践提供参考。

Prestressed concrete structure has undergone several decades of digestion and absorption,and re-innovation since its introduction to China,which has become one of important structural forms to achieve further enhancement of structural performances and meet diverse design demands.Prestressed concrete structure has been widely applied and a large number of prestressed concrete buildings and structures have been constructed up to now.The key techniques and development status in the field of the performance evaluation on prestressed concrete structures from the aspects of development history,performance evaluation needs,prestress detection and monitoring techniques,and performance evaluation methods were expounded.The future development trends of prestressed concrete structure from the three aspects of theory,techniques and application were envisaged.The future development directions involving uncertainty evaluation theory,material-structure-integrated evaluation techniques,and intelligent service performance evaluation methods were focused.It was expected to provide references to research and practice in the field of prestressed concrete structure.