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中文摘要：
为解决空心板梁桥单板受力问题,基于邢汾高速某简支空心板梁桥设计相似有机玻璃试验模型.分析了预应力筋的布置以及荷载的施加等几个因素对横向预应力筋加固简支空心板梁桥效果的影响,从图形和量化计算两个方面,直观地给出了模型的加固方案对比.试验结果表明：施加横向预应力筋加固效果明显,在梁底跨中部位施加预应力加固效果最好;张拉预应力大小并非越大越好,应与施加荷载大小相适应,才能达到最佳加固效果.
英文摘要：
In order to solve the problem of single plunk strength, the similarly experimental model in organic glass based on a simply supported slab bridge of Xing Fen motorway is designed. The effect of the prestressing tendon layout and the applied load on transverse prestressed reinforcement of simply supported slab bridge is analyzed. The comparison of reinforeement program is given with the graphs and theoretical calculations. At the same time, the experimental results show that the reinforcement effect of transverse prestressing tendon is obvious. It is best when the transverse prestressing tendon is rationally used across the bottom of the beam ; on the other side , the load position also impacts on the reinforcement effect to some extent. It is incorrect to thimle that the bigger prestressed size , the better reinforcement effect. It should be in line with the applied load so that the best effect of reinforcement can be achieved.
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