挂蓝法变截面箱梁施工在码头引桥中的应用VIP专享

挂蓝法变截面箱梁施工在码头引桥中的应用【摘要】预应力变截面连续箱型梁桥采纳悬臂浇筑施工法，利用挂篮在墩两侧对称平衡地浇筑梁段混凝土，每浇筑完一段，待达到规定强度后就张拉预应力筋并锚固，然后向前移动挂篮，进行下一段的施工，直到悬臂端为止。挂蓝法预应力变截面箱梁施工在水工工程中比较少见，本文以青岛益佳集团燃料油码头工程中的56+5×85+56m 沉箱墩基础引桥施工为例，讲述挂篮施工的工艺。【关键词】 预应力：连续箱梁：挂篮施工【Abstract】Prepare should the dint change piece noodles continuous box type beam bridge adoption hang arm to sprinkle to build construction method, make use of hang a basket two sides is symmetry to in balance sprinkle to build beam segment concrete at the Dun, each sprinkle to finish build 1, after treating to attain provision strength Zhang La Yu4 should dint Jin combine the anchor man be solid, then forward move hang a basket, carry on next of construction, until hang arm to the blue method prepare should the dint change piece noodles box beam construction more seldom seen in the water work engineering, this text with 56+ in the Qingdao benefit good wharf engineering of the group fuel oil 5 the × 85+56 m caisson Dun‘s foundation lead bridge construction for example, relate to hang a basket a craft for start construction.【Key words】Prepare should dint:Continuous box beam:Hang a basket a construction 1. 概述 益佳燃料油码头引桥全长 537 米，全桥位于直线度，桥宽米，桥跨布置为56+5×85+56m 预应力混凝土变截面单箱单室连续箱梁，中支点梁高 5 米，端部梁高米，梁底线形按二次抛物线变化。边跨采纳满堂支架现浇段长米，每跨合拢段长 2米。墩上支点长米，梁高 5 米。每个墩共分成 11 个梁段进行悬臂现浇，0 号块长度为 9 米，1～6 号块各长米，7～10 号块各长4 米。箱梁顶板宽度为米，底板宽米，两侧悬臂板长米，悬臂板端部厚米，根部厚米。箱梁顶板厚度为米，底板厚度为～米，中墩处局部加厚到米。中支点处设置横隔板，板厚米，...