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A platform for research: civil engineering, architecture and urbanism
Positioning and mounting method for lower chord of cable-stayed bridge steel truss girder
The invention discloses a positioning and mounting method for a lower chord of a cable-stayed bridge steel truss girder. The positioning and mounting method comprises the following steps that S11, supporting piles and laser transmitters are mounted; S12, a jacking device is installed, and a laser sensor is installed on the side surface of the lower chord of each pier top section; S13, the pier top section lower chord is hoisted to a specified position, jacking is performed by using the jacking device, the pier top section lower chord is adjusted to a designed position of the lower chord by using the laser sensor, and mounting is performed; S14, the laser sensor is installed on the side surface of the lower chord of each cantilever section; S15, the lower chord of the cantilever section is hoisted to the specified position, the lower chord of the cantilever section is adjusted to the designed position of the lower chord by using the laser sensor, and mounting is performed; and S16, in a stay cable tensioning process, the laser sensor is used for adjusting cantilever section lower chord to the design line shape of the lower chord. According to the method, the lower chord is positioned through lasers, the lower chord can be efficiently positioned, the positioning precision is greatly improved, construction is accurate, operation is easy, manpower is saved, and the construction efficiency is high.
本发明公开了一种斜拉桥钢桁梁下弦杆的定位安装方法，包括以下步骤：S11、安装支撑桩和激光发射器；S12、安装顶升装置，在每根墩顶段下弦杆侧面安装激光感应器；S13、将墩顶段下弦杆吊装至指定位置，用顶升装置进行顶升，利用激光感应器调整墩顶段下弦杆至下弦杆设计位置，并安装；S14、在每根悬臂段下弦杆侧面安装激光感应器；S15、将悬臂段下弦杆吊装至指定位置，利用激光感应器调整悬臂段下弦杆至下弦杆设计位置，并安装；S16、在斜拉索张拉过程中，利用激光感应器调整悬臂段下弦杆至下弦杆的设计线形。本发明的方法采用激光对下弦杆进行定位，能够高效地对下弦杆进行定位，大大提高了定位精度、精准施工，易操作，节省人力，施工效率高。
Positioning and mounting method for lower chord of cable-stayed bridge steel truss girder
The invention discloses a positioning and mounting method for a lower chord of a cable-stayed bridge steel truss girder. The positioning and mounting method comprises the following steps that S11, supporting piles and laser transmitters are mounted; S12, a jacking device is installed, and a laser sensor is installed on the side surface of the lower chord of each pier top section; S13, the pier top section lower chord is hoisted to a specified position, jacking is performed by using the jacking device, the pier top section lower chord is adjusted to a designed position of the lower chord by using the laser sensor, and mounting is performed; S14, the laser sensor is installed on the side surface of the lower chord of each cantilever section; S15, the lower chord of the cantilever section is hoisted to the specified position, the lower chord of the cantilever section is adjusted to the designed position of the lower chord by using the laser sensor, and mounting is performed; and S16, in a stay cable tensioning process, the laser sensor is used for adjusting cantilever section lower chord to the design line shape of the lower chord. According to the method, the lower chord is positioned through lasers, the lower chord can be efficiently positioned, the positioning precision is greatly improved, construction is accurate, operation is easy, manpower is saved, and the construction efficiency is high.
本发明公开了一种斜拉桥钢桁梁下弦杆的定位安装方法，包括以下步骤：S11、安装支撑桩和激光发射器；S12、安装顶升装置，在每根墩顶段下弦杆侧面安装激光感应器；S13、将墩顶段下弦杆吊装至指定位置，用顶升装置进行顶升，利用激光感应器调整墩顶段下弦杆至下弦杆设计位置，并安装；S14、在每根悬臂段下弦杆侧面安装激光感应器；S15、将悬臂段下弦杆吊装至指定位置，利用激光感应器调整悬臂段下弦杆至下弦杆设计位置，并安装；S16、在斜拉索张拉过程中，利用激光感应器调整悬臂段下弦杆至下弦杆的设计线形。本发明的方法采用激光对下弦杆进行定位，能够高效地对下弦杆进行定位，大大提高了定位精度、精准施工，易操作，节省人力，施工效率高。
Positioning and mounting method for lower chord of cable-stayed bridge steel truss girder
一种斜拉桥钢桁梁下弦杆的定位安装方法
XIE BUJUN (author) / YE YANWEI (author) / TU XUHU (author) / ZHOU XIONG (author) / WANG JIAN (author) / WANG SHIZHAO (author) / KUANG CHUN (author) / YANG SHIYUN (author)
2021-04-16
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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