STRUCTURAL ASSESSMENT OF COMPOSITE HIGHWAY BRIDGES CONSIDERING VEHICLE-BRIDGE DYNAMIC INTERACTION

ce/papers Pub Date : 2024-03-27 DOI:10.1002/cepa.3033
Ana Célia Soares da Silva, Guilherme Santana Alencar, José Guilherme Santos da Silva
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Abstract

Over time, as the bridge deck pavement deterioration process increases, the calculated vertical translational displacements and stresses are higher. In this context, the chances of mechanical failure occurrence increase and may cause limitation in the service life of steel and composite (steel-concrete) bridges. Thus, the current work presents a methodology for fatigue analysis developed by the authors through the years. The methodology is devoted specifically for the assessment of composite bridges employing the hot-spot local S-N approach and a coupled vehicle-pavement-bridge system considering progressive pavement deterioration with stochastically generated roughness profiles.

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考虑车辆与桥梁动态相互作用的公路复合材料桥梁结构评估
随着时间的推移,随着桥面铺装老化程度的增加,计算得出的垂直平移位移和应力也会增加。在这种情况下,发生机械故障的几率会增加,并可能导致钢桥和复合材料(钢-混凝土)桥的使用寿命受到限制。因此,本论文介绍了作者多年来开发的疲劳分析方法。该方法专门用于评估复合材料桥梁,采用了热点局部 S-N 方法和车辆-路面-桥梁耦合系统,考虑了随机生成粗糙度轮廓的渐进式路面劣化。
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