不对称连续刚构合拢段的施工控制

摘要

In combination with construction practice of closure segment of asymmetric continuous rigid frame, the control method of each construction stage of closure segment of asymmetric continuous rigid frame is introduced. Specific contents such as the measures of preventing bottom slab concrete of box beam from cracking as a result of tensioning, the pushing process, and the prestress tensioning sequence control of closure segment are elaborated in detail and the problems needing attention in construction control are introduced.%结合不对称连续刚构合拢段施工实践，介绍了不对称连续刚构合拢段各施工阶段的控制方法。详细阐述了防止张拉预应力导致箱梁底板混凝土开裂的措施、顶推过程以及合拢段预应力张拉顺序控制等具体内容，并介绍施工控制中需要注意的问题。