摘要
研究目的:运用负角度二次竖转施工技术和计算机网络控制同步提升及下放技术实施对上海蕴藻浜斜拉桥针形钢塔进行竖转施工,总结经验,探索这一新技术在桥梁工程钢结构倾斜高塔拼装施工中的应用和推广价值。研究结论:通过对针形钢塔安装技术的研究比选,结合钢塔的结构特点,得出以下结论:(1)采用负角度二次竖转施工,以钢塔角点处为理论转轴中心,先负角度同步提升,转体75°后再同步下放至设计位置,该项技术先进、可靠,方案合理、可行;(2)负角度二次竖转施工的先进技术在上海蕴藻浜斜拉桥的成功运用,确保了钢塔安装施工的快速、高效、安全和高质量,节省约3个月工期,有效降低了施工成本;(3)该研究成果可用于超高细比、倾斜高塔等钢结构的拼装施工领域。
Research purposes： By using the twice vertical swivel technology by the negative point of view and computer network control synchronization technology of raising and lowering developed vertical swivel construction to needle steel tower of cable - stayed bridge in Shanghai Yunzaobang. This paper sums up the experience to explore the application promotional value of this new technology in the bridge engineering construction of the leaning tower steel structure assembly Research conclusions：By comparison with the different method of the steel tower construction technology to select the optimal solution, it is concluded that： （1） It adopts the hydraulically synchronous technique to hoist the negative point of view of the needle steel tower which centered on the steel tower angular point, to swing the steel towel in place with 75~, then synchronous lowering it to the theoretical position. The technology is advanced and reliable, the scheme is reasonable and feasible. （2） The technical innovation on the twice vertical swivel technology by the negative point of view of the needle steel tower is successfully used in Shanghai Yunzaobang cable - stayed bridge, it can guarantee the rapid, efficient, safe and high quality, which can save about three months period and effectively lower the cost. （3） It can be used in the steel structure assembled construction fields of the high and thin inclined tower.
出处
《铁道工程学报》
EI
北大核心
2015年第3期57-61,共5页
Journal of Railway Engineering Society
关键词
针型钢塔
负角度二次竖转
同步提升
同步下放
the needle steel tower
the twice vertical swivel technology by the negative point of view
synchronous hoisting
synchronous lowering
