摘要
随着国家经济总量高速增长,大跨桥梁工程得到了快速发展。随之而来的大型临时施工支架专项方案的安全与稳定问题较为敏感,详细分析施工阶段最不利工况的结构响应显得越来越重要。现结合主跨600m自锚式悬索桥边跨钢箱梁顶推施工支架方案,详细分析临时墩基础单桩承载力、桩身强度、桩身稳定性、桩顶位移及承台强度,可为相关类似工程提供有益的参考。
With the high-speed growth of the national economic aggregate, the long-span bridge engineering has been developed rapidly. The accompanying safety and stability problems of the special scheme for the large temporary construction supports are more sensitive. It is more and more important to analyze the structural response of the most unfavorable working condition in the construction stage in detail. Combined with the incremental launching construction support scheme of side-span steel box girder for the main-span 600-m self-anchorage suspension cable bridge, this paper analyzes the single-pile bearing capacity, pile body strength, pile body stability, pile-top displacement and base slab strength of the temporary pier foundation in detail, which can be referred for the similar projects.
出处
《城市道桥与防洪》
2019年第7期140-142,M0017,共4页
Urban Roads Bridges & Flood Control
关键词
顶推施工
承载力
强度
稳定性
位移
incremental launching construction
bearing capacity
strength
stability
displacement
