This paper is a research on the effect of transverse connection damage on transverse load distribution of T beam bridge.The study consists of establishing the finite element models by the division of 9 working conditions according to the different positions and forms of damage;producing the transverse load distribution values of main beams under 9 working conditions,using a calculation and analysis method;and comparing the values with those damage-free ones.The results demonstrate that the transverse connection damage triggers the transverse load redistribution,with a resultant change in the transverse load distribution values of each main beams-a change which exhibits an increasing magnitude due to the damage degree;the transverse connection damage is followed by the occurrence of a significantly increased value culminating into a maximum value,in the transverse load distribution of main beams directly acted on by loads shows;the transverse connection damage is accompanied by both an increased values in the transverse load distribution of main beam subjected to load on the one side and a decreased value on the other side,as is shown by the damage point as the borderline.This research highlighting a rule underlying the change in transverse load distribution under transverse connection damages may provide a theoretical reference for T bridge reinforcement and maintenance.%为了研究横向联接破坏对T梁桥荷载横向分布的影响,根据破坏位置和破坏形式的不同,划分九种工况建立有限元模型,通过计算得出每种工况下各主梁的荷载横向分布数值,并与无损伤情况下数值进行对比分析.结果表明:横向联接破坏会引起荷载横向重分布,各主梁的荷载横向分布数值均发生变化,且随着破坏程度加重变化幅度也愈加明显;受荷载直接作用的主梁荷载横向分布数值在横向联接破坏后大幅度增加变为最大值;横向联接破坏后以破坏点为界线,荷载作用一侧的主梁荷载横向分布数值增大而另一侧则减小.该研究得到了横向联接破坏下桥梁荷载横向分布的变化规律,可为实际工程施工和T梁桥的加固维修提供理论参考.
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