连续梁桥底板横向裂缝参数对其结构影响研究

Study on Influence of Transverse Crack Parameter at Bedplate of Continuous Beam Bridge on Its Structure

连续梁桥的裂缝问题越来越严重,它影响了桥梁的耐久性和结构承载力。为了掌握裂缝参数对箱梁结构的影响,进而为既有桥梁安全性能的评定和加固提供依据,对此,以某连续梁桥为例,以箱梁底板裂缝开裂宽度、开裂深度为参数,运用Ansys模型分析以上裂缝参数变化对梁体应力和挠度的影响。

The crack problem of continuous beam bridge is more and more serious, and will influence the durability and structural bearing capacity of bridge. In order to master the influence of crack parameter on the box beam structure, and to provide the basis for the evaluation and reinforcement of the safety performance of the existing bridges, the software Ansys is used to simulate and analyze the influence of the crack parameters of cracking width and depth of crack at the bedplate of box beam on the beam stress and deflection.