北方交通
北方交通
북방교통
NORTHERN COMMUNICATIONS
2012年
12期
80-83
,共4页
不对称连续刚构%合拢段%顶推控制
不對稱連續剛構%閤攏段%頂推控製
불대칭련속강구%합롱단%정추공제
Asymmetric continuous rigid frame%Closure segment%Pushing control
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。
結閤不對稱連續剛構閤攏段施工實踐，介紹瞭不對稱連續剛構閤攏段各施工階段的控製方法。詳細闡述瞭防止張拉預應力導緻箱樑底闆混凝土開裂的措施、頂推過程以及閤攏段預應力張拉順序控製等具體內容，併介紹施工控製中需要註意的問題。
결합불대칭련속강구합롱단시공실천，개소료불대칭련속강구합롱단각시공계단적공제방법。상세천술료방지장랍예응력도치상량저판혼응토개렬적조시、정추과정이급합롱단예응력장랍순서공제등구체내용，병개소시공공제중수요주의적문제。
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.
