A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Mid-span closure method for steel box girders of cable-stayed bridge
The invention discloses a mid-span closure method for steel box girders of a cable-stayed bridge, which adopts a single-side crane to hoist a closure section steel box girder and a single tower for pushing, avoids the problem of synchronism of construction on two sides, adopts a pushing device for locking, does not need to weld a stiff skeleton and does not need to carry out balance weight in advance. The closure section steel box girder is placed on the girder tops of the cantilever steel box girders installed on the two sides in a simple support mode, the whole closure construction process is short in duration time, easy and convenient to operate, capable of saving resources and low in construction risk, various closure error adjusting methods are embodied, and high closure precision is ensured.
本发明公开了一种斜拉桥钢箱梁中跨合龙方法，采用单侧吊机吊装合龙段钢箱梁，单塔进行顶推，避免了两侧施工的同步性问题，采用顶推装置进行锁定，无需焊接劲性骨架，无需提前进行平衡配重，用简支的形式将合龙段钢箱梁搁于两侧已安装悬臂钢箱梁的梁顶，整个合龙施工过程持续时间较短，操作简便，节约资源，施工风险较低，并且体现了多种调整合龙误差的方法，确保较高的合龙精度。
Mid-span closure method for steel box girders of cable-stayed bridge
The invention discloses a mid-span closure method for steel box girders of a cable-stayed bridge, which adopts a single-side crane to hoist a closure section steel box girder and a single tower for pushing, avoids the problem of synchronism of construction on two sides, adopts a pushing device for locking, does not need to weld a stiff skeleton and does not need to carry out balance weight in advance. The closure section steel box girder is placed on the girder tops of the cantilever steel box girders installed on the two sides in a simple support mode, the whole closure construction process is short in duration time, easy and convenient to operate, capable of saving resources and low in construction risk, various closure error adjusting methods are embodied, and high closure precision is ensured.
本发明公开了一种斜拉桥钢箱梁中跨合龙方法，采用单侧吊机吊装合龙段钢箱梁，单塔进行顶推，避免了两侧施工的同步性问题，采用顶推装置进行锁定，无需焊接劲性骨架，无需提前进行平衡配重，用简支的形式将合龙段钢箱梁搁于两侧已安装悬臂钢箱梁的梁顶，整个合龙施工过程持续时间较短，操作简便，节约资源，施工风险较低，并且体现了多种调整合龙误差的方法，确保较高的合龙精度。
Mid-span closure method for steel box girders of cable-stayed bridge
一种斜拉桥钢箱梁中跨合龙方法
CHEN CHANGSONG (author) / LING LIHUA (author) / YAN DONGHUANG (author) / WANG JIN (author) / HUANG GEN (author) / SHE QINCONG (author)
2021-07-13
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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