大跨T型梁的起拱与侧弯控制技术

摘要

以天津集疏港公路二期中段工程海河大桥为例,分析了50.2 m T型梁在张拉过程中产生起拱及侧弯过大的原因,提出了合理的控制方法,使大跨T梁的起拱和侧弯值满足规范要求。%Based on Haihe Large Sridge of middle Section II of Tianjing-Jishu Port Highway Project, the paper analyzes the reasons behind arch raising and sharp side bend during tensioning of 50.2 m long T-type girder and proposes proper control methods to enable the arch raise and side bend of such girder to meet the specifications.