“释能法”加固桁式组合拱桥荷载试验分析

源村大桥为105m的预应力混凝土桁式组合拱桥，通过采用“释能法”加固方式，改变原桥的受力体系，并将该桥加固前后的荷载试验结果进行对比，分析表明，采用“释能法”加固后的源村大桥受力性能得到明显改善，承载能力得到大幅提高，达到加固目的，成为第一座加固成功的桁式组合拱桥，为国家节省大量的加固费用，具有显著的技术经济效益。

Study of Load Test about Trussed Combination Arch Bridge Reinforced by Energy-releasing Method

Yuancun bridge is a pre-stressed trussed combination arch bridge with a span of 105 m.According to the reinforcement of Yuancun bridge by energy-releasing method which has changed the original force system of the bridge,and comparative analysis with the load test results,analysis show that load capability of the bridge has improved much than before.It has enhanced the carrying of the bridge,completeel working order,become the first successful reinforced trussed combination arch bridge,saved the cost,and mad...