复杂状况下旧危双曲拱桥的加固改造

Reinforcement of the Old Dangerous Two-way Curved Arch Bridge in Complex Conditions

在无设计资料的情况下,采用合理的评价及加固改造方法,解决了复杂条件下的某危旧双曲拱桥的加固问题.改造完成后的桥梁静载试验及近一年来的运营证明,采用的加固方法是成功的,取得了较好的经济效益和社会效益.该桥的成功再次说明,拱桥的承载潜力较大,盲目拆除旧危拱桥重建新桥不仅要浪费大量资金,影响工程建设进度,还会影响交通,给当地人民生活带来极大不便.

Without the designing materials, using reasonable appraisal and remtorcement transformation method, the old dangerous two-way curved arch bridge reinforcement in complex conditions is completed . It is proved by the static load experiment after transformation and the nearly one year operation that the reinforcement method is successful and has the better economic efficiency and the social efficiency. The reinforcement of the bridge shows that the arched bridge load bearing potential is big, demolishing old dangerous arched bridges blindly and reconstructing the new ones will waste massive funds and affect the engineering construction. Sometimes it can also affect the transportation and bring enormous inconveniences to the local lives of the people.