A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Jacking method for annular steel structure box type pedestrian overpass
The invention discloses a jacking method for an annular steel structure box type pedestrian overpass, andrelates to the technical field of pedestrian overpass jacking. The jacking method specifically comprises the following steps that S1, steel pipe bridge piers are installed in place, welded and fixed, and the installation positions of all annular steel structure box type pedestrian overpass sections and all connecting steel platforms are taken as the benchmark. According to the jacking method for the annular steel structure box type pedestrian bridge, the purposes of primary jacking is to eliminate the relative position limitation of segmented high-altitude assembly of a steel column, a connecting steel platform and the annular steel structure box type pedestrian bridge, enable that the diameter of the segmented annular steel structure box type pedestrian bridge to be adjusted and the diameter of the connecting steel platform are larger than the original design diameter, and reserve a space for reducing the diameter of the whole circular ring after the circular ring steel structure box type pedestrian bridge is welded and contracted; and the purpose of secondary jacking is to jack the segmented circular ring steel structure box type pedestrian bridge and the connecting steel platform to meet the design arching data requirement under the conditions of no barrier and structural system hinging.
本发明公开了一种圆环钢结构箱型人行天桥顶升方法，具体包括以下步骤：S1、先将钢管桥墩安装就位并焊接固定，以各圆环钢结构箱型人行天桥分段和各连接钢平台安装位置为基准，本发明涉及人行天桥顶升技术领域。该圆环钢结构箱型人行天桥顶升方法，第一次顶升目的是为了消除钢柱、连接钢平台和圆环钢结构箱型人行天桥分段高空组装相对位置限制,让待调整分段圆环钢结构箱型人行天桥与连接钢平台直径大于原设计直径,为圆环钢结构箱型人行天桥焊接收缩后整体圆环直径减少留有余地，第二次顶升目的是为在无障碍和结构体系铰接情况下，使得顶升分段圆环钢结构箱型人行天桥和连接钢平台以达到设计起拱数据要求。
Jacking method for annular steel structure box type pedestrian overpass
The invention discloses a jacking method for an annular steel structure box type pedestrian overpass, andrelates to the technical field of pedestrian overpass jacking. The jacking method specifically comprises the following steps that S1, steel pipe bridge piers are installed in place, welded and fixed, and the installation positions of all annular steel structure box type pedestrian overpass sections and all connecting steel platforms are taken as the benchmark. According to the jacking method for the annular steel structure box type pedestrian bridge, the purposes of primary jacking is to eliminate the relative position limitation of segmented high-altitude assembly of a steel column, a connecting steel platform and the annular steel structure box type pedestrian bridge, enable that the diameter of the segmented annular steel structure box type pedestrian bridge to be adjusted and the diameter of the connecting steel platform are larger than the original design diameter, and reserve a space for reducing the diameter of the whole circular ring after the circular ring steel structure box type pedestrian bridge is welded and contracted; and the purpose of secondary jacking is to jack the segmented circular ring steel structure box type pedestrian bridge and the connecting steel platform to meet the design arching data requirement under the conditions of no barrier and structural system hinging.
本发明公开了一种圆环钢结构箱型人行天桥顶升方法，具体包括以下步骤：S1、先将钢管桥墩安装就位并焊接固定，以各圆环钢结构箱型人行天桥分段和各连接钢平台安装位置为基准，本发明涉及人行天桥顶升技术领域。该圆环钢结构箱型人行天桥顶升方法，第一次顶升目的是为了消除钢柱、连接钢平台和圆环钢结构箱型人行天桥分段高空组装相对位置限制,让待调整分段圆环钢结构箱型人行天桥与连接钢平台直径大于原设计直径,为圆环钢结构箱型人行天桥焊接收缩后整体圆环直径减少留有余地，第二次顶升目的是为在无障碍和结构体系铰接情况下，使得顶升分段圆环钢结构箱型人行天桥和连接钢平台以达到设计起拱数据要求。
Jacking method for annular steel structure box type pedestrian overpass
一种圆环钢结构箱型人行天桥顶升方法
ZENG YONG (author) / LIU HEPING (author) / MA YANBIN (author)
2021-06-25
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
Steel structure pedestrian overpass with automatic cleaning function
| European Patent Office | 2020