Abstract: The influence of vertica l jo ints on post??construction de flection of con tinuous rig id fram e br idg es is d iscussed w ith the considera tion o f the des ign and construction condition. A t the sam e tim e, the contr ibution of vertical shearing disto rtion to the la ter deflection under d ifferen t construction conditions is ana ly zed. In the current case, the inc rem ents o f the deflec?? tion of the bridge ma in g irders resu lting from the shearing creep o f the vertica l jo ints shou ld no t be neg lected. A t last, the configuration and construction m easures are proposed to im prove the qua lity of the segm enta l vertica l jo ints o f them a in g ird?? e rs.

Key words: continuous rigid frame , vertical joint , shear creep , post-construction deflection ;

摘要： 结合设计与施工因素讨论连续刚构桥竖向接缝对成桥后期挠度的影响,同时分析了不同施工质量下竖向接 缝剪切徐变对后期挠度的贡献,认为在现有条件下由竖向接缝处的剪切变形引起主梁下挠增量不容忽视,并提出 了改善主梁节段间接缝的构造措施和施工中应注意的事项。

关键词: 连续刚构, 竖向接缝, 剪切徐变, 后期挠度