摘要
厦门市嘉禾路上鼎炉人行天桥长42.7 m,为三跨连续箱梁全钢结构。由于天桥下净空不满足规范要求,主梁遭受过往车辆撞击,因此,要求进行整体抬升改造。根据现场实际、设计文件及有关的规范、标准对顶升施工方案进行了分析、优化。该文主要阐述整体顶升施工方案优化及具体实施。该工程实例的成功实施可为类似改造工程提供参考。
Dinglu Pedestrian Overpass is 42.7 m long on Jiahe Road of Xiamen City,and it is the three-span continuous beam full-steel structure.The main beam is easily struck because of the clearance not satisfying the standards under the overpass.Therefore,it is required to lift integrally for reconstruction.Based on the field practice,design document and the relative criterion and standard,the lifting construction scheme is analyzed and optimized.The article mainly sets forth the optimization and detail implementation of the integral lifting construction scheme.The successful implementation of this engineering practice can be referred for the similar reconstruction projects.
出处
《城市道桥与防洪》
2012年第12期134-137,13-14,共4页
Urban Roads Bridges & Flood Control
关键词
人行天桥
连续梁结构
整体顶升
方案优化
厦门市
pedestrian overpass,continuous beam structure,integral lifting,scheme optimization
