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先简支后连续T梁桥施工过程中 ,在整体桥面板浇筑后可能会出现沿T梁翼板接缝的混凝土纵向裂纹。裂纹的成因及其对结构安全性与耐久性影响的可能性与影响程度是后续措施决策的重要依据。本文通过实桥荷载试验和有限元理论分析 ,研究此类裂纹对结构静力学性能的影响
After the first simple supported continuous T girder bridge construction process, the concrete longitudinal cracks along the T girder joint may appear after the whole bridge slab is poured. The causes of cracks and their impact on the structural safety and durability of the possibility of influence and degree of follow-up measures are an important basis for decision-making. In this paper, through the real bridge load test and finite element analysis, the impact of such cracks on the static mechanical properties