预应力混凝土空心板桥加固性能研究

Reinforcement performance of prestressed concrete hollow slab bridge

针对预应力混凝土空心板桥结构常见病害类型,依托实际工程,探讨了空心板进行碳纤维筋喷浆、结构简支变连续及粘贴碳纤维布、换板及粘贴碳纤维布等加固技术。通过桥梁荷载试验和数值模拟方法对各加固效果进行分析,结果显示:选择正确的加固措施可改善空心板桥的受力性能,有效提高桥梁的承载能力,切实保障桥梁结构的安全性及耐久性。

Based on actual engineering,this study discusses reinforcement techniques for common types of diseases in prestressed concrete hollow slab bridge structures,including carbon fiber reinforcement grouting,structural simple support to be continuous,carbon fiber cloth pasting,as well as replacement and carbon fiber cloth pasting.The analysis of the reinforcement effects through bridge load tests and numerical simulation methods shows that selecting the correct reinforcement measures can improve the stress performance of hollow slab bridges,effectively enhance the bearing capacity of bridges,and ensure the safety and durability of bridge structures.