基于光纤传感技术的桥梁承载力快速评定法

为了满足战时部队车辆装备通过民用桥梁时进行安全性快速评定的要求,在分析已有的旧桥承载力评定方法优缺点的基础上,提出了一种基于光纤传感技术的快速评定法。根据战时特点给出了进行承载力实时评估的基本标准,叙述了其实施流程和基本原理,并进行了室内模型试验,验证了该方法的可行性。结果表明,该方法符合平战结合的要求,战时便于实施,能较准确地评定既有桥梁的承载力。

Rapid evaluation of bridge carrying capability based on optical fiber sensing technology

In order to satisfy the demand of rapid evaluation of the safety of the bridge carrying army vehicles,analyzing the advantage and disadvantage of the existing evaluation methods on the carrying capability of old bridges were analyzed,and a new method was proposed based on the optical fiber sensing technology.The basic standard of real time evaluation of carrying capability was offered based on its characteristic in wartime.Operation flow and fundamental of the method were narrated.Feasibility of the method was validated through a model examination.As a result,the method accords with the demand of combining peacetime footing with wartime footing.It can exactly evaluate the carrying capability of the existing bridge,and is convenient for operation in wartime.