"释能法"加固石家湾桥荷载试验研究及分析

随着我国交通事业的发展,旧桥加固已成为交通管养部门关注的问题。石家湾桥通过采用"释能法"加固方式,改变了原桥受力体系,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"加固后的石家湾桥受力性能明显改善,承载能力有一定提高,能满足正常运营要求,达到了加固的目的,并节省了大量加固费用和时间,取得了显著的技术经济效益。

Study of load test about Shijiawan bridge reinforced by energy-releasing method

With the development of transportation business in our country,the reinforcement of old bridge increasingly becomes important to transportation protect department.According to the reinforcement of Shijiawan bridge by energy-releasing method which has changed the original reinforcement system of the bridge,and comparative analysis with the load test results, analysis shows that load capability of the bridge has improved much than before.It has enhanced the carrying capacity of the bridge, completeel working order, saved the time and costs, and made notably economic benefits.