The bridge influence line can reflect the structural behavior under moving vehicle loads, which is becoming a proposing tool to study the bridge behavior during service life. A high‐speed vehicle will induce dynamic effect on the bridge, which will significantly change the shape of response curve. It is essential to consider the dynamic response for the accurate identification of the bridge influence line. This paper firstly summarizes current research activities for bridge influence line identification and components of the bridge dynamic responses. A dynamic fluctuation part elimination method based on empirical mode decomposition is proposed, based on which the bridge static influence line is identified by static bridge influence line identification method. Finally, a vehicle–bridge coupling model of a simply supported beam excited by passing vehicles with three different speeds is introduced to illustrate the effectiveness of the proposed identification method. The result of this study provides an effective identification method of the bridge static influence line, which can lead to a satisfactory identification results based on the dynamic responses induced by high‐speed vehicle loads.

中文翻译：

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从高速车辆引起的结构动力响应中识别桥梁影响线

桥梁影响线可以反映在移动车辆载荷下的结构行为，这正成为研究使用寿命期间桥梁行为的一种提议工具。高速车辆将在桥上产生动力效应，这将大大改变响应曲线的形状。为了准确识别桥梁影响线，必须考虑动态响应。本文首先总结了当前对桥梁影响线识别和桥梁动力响应成分的研究活动。提出了一种基于经验模态分解的动态波动部分消除方法，在此基础上，采用静态桥梁影响线识别方法识别桥梁静态影响线。最后，为了说明所提出的识别方法的有效性，引入了一种简支梁的车桥耦合模型，该模型由经过三种不同速度的车辆所激发。这项研究的结果为桥梁静力影响线提供了一种有效的识别方法，根据高速车辆载荷引起的动态响应，可以得出令人满意的识别结果。