预应力混凝土空心板加固试验研究

＂单板受力＂是目前中小跨径桥梁的主要病害,分别对空心板相关指标以及结构理论承载能力等进行计算和理论分析,并通过原板未加固荷载试验和采用粘贴碳纤维补强加固对比荷载试验,结果表明,采用粘贴碳纤维加固补强与原结构共同受力性能良好,显著提高结构极限承载能力和开裂荷载。结合有限元思想结构进行内力分析,论证了目前中小跨径桥梁,基于＂单板受力＂采用这种加固方法加固的实用性和可靠性。

Prestressed Concrete Hollow Slab Reinforcement Experimental Research

＂Veneer force＂ is the main disease present small and medium span bridges, the paper respectively hollow structure theory related indicators and carrying capacity are calculated and analyzed, and reinforced by the original panel did not load test and comparison with carbon fiber reinforcement paste load test results show that the use of carbon fiber reinforcement and paste the original structure to- gether by good mechanical properties and significantly improve the structural limit load carrying capacity and cracking. Ideological structure of the finite element analysis of internal force, demonstrates the cur- rent small and medium span bridges, based on the ＂veneer force＂ with this reinforcement method rein- forcement practicality and reliability.