本文研究在梁底采用环氧树脂胶粘贴钢板加强的方法,达到提高梁的承载能力,以满足公路桥梁设计荷载等级的提高。文中对梁的加固设计、加固工艺、实梁对比试验以及加固效益作了较详细的介绍和分析,采用此法经济效益较显著;并具有工艺简便、施工期间对交通影响较小等有利因素,对5～20米左右的中小跨径板梁和T型梁桥尤为适宜。对旧桥改造,提高荷载等级均具有现实意义。 In this paper, the use of epoxy resin in the beam at the end of the steel plate glued method to enhance the bearing capacity of the beam to meet the design requirements of the highway bridge load level. In this paper, the reinforcement design, reinforcement technology, comparison test of solid beam and reinforcement benefit are introduced and analyzed in detail. The economic benefit of this method is more obvious. It has the advantages of simple technology, less impact on traffic during construction, For 5 to 20 meters of medium and small-span beam and T-beam bridge is particularly suitable. Reconstruction of the old bridge, increase the load level are of practical significance.