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A platform for research: civil engineering, architecture and urbanism
Vertical rotation and horizontal rotation combined external expansion type cable-stayed bridge steel tower construction method
The invention belongs to the technical field of bridge engineering construction, and particularly relates to a vertical rotation and horizontal rotation combined external expansion type cable-stayed bridge steel tower construction method which comprises the steps that a bridge lower structure and a main beam are constructed; a vertical rotating tower and a vertical rotating hinge are installed on the top face of the box girder, two tower bodies of the vertical rotating tower are symmetrically arranged along the longitudinal bridge direction center line, and the top of the vertical rotating tower is horizontally connected to the transverse bridge direction; an upper tower column assembling jig frame is erected on the top face of the box girder in the longitudinal bridge direction, so that vertical rotation of an upper tower column is conducted on the top face of the box girder in the later period, and the vertical rotation plane coincides with the middle line of the bridge in the longitudinal bridge direction; assembling an upper tower column and an upper cross beam on the jig frame; a traction cable and a back cable are installed, and the upper tower column rotates vertically; welding and joining the upper cross beam; a horizontal rotating device is installed on the top face of the box girder, and horizontal rotating of the upper tower column can be achieved through rotation of the horizontal rotating device. Closing the tower columns; permanent inhaul cable installation; and constructing a bridge deck system and ancillary facilities. The construction method has the beneficial effect that the steel tower structure of the external expansion type cable-stayed bridge can be constructed under the condition that the safe operation of the existing railway is not influenced.
本发明属于桥梁工程建设技术领域，尤其涉及一种竖转与平转结合的外张型斜拉桥钢塔施工方法，包括步骤：施工桥梁下部结构及主梁；在箱梁顶面安装竖转塔架及竖转铰，竖转塔架的两塔架沿纵桥向中线对称布置，顶部平联横桥向布置；在箱梁顶面、沿纵桥向搭设上塔柱组拼胎架，使后期上塔柱的竖转在箱梁顶面进行，且竖转平面与桥梁纵桥向方向的中线重合；在胎架上组拼上塔柱以及上横梁；安装牵引索和背索，上塔柱竖转；上横梁焊接合龙；在箱梁顶面安装平转装置，通过平转装置的转动可实现上塔柱平转；塔柱合龙；永久拉索安装；桥面系及附属设施施工。本发明的有益效果是：可在不影响既有铁路安全运行的情况下施工外张型斜拉桥钢塔结构。
Vertical rotation and horizontal rotation combined external expansion type cable-stayed bridge steel tower construction method
The invention belongs to the technical field of bridge engineering construction, and particularly relates to a vertical rotation and horizontal rotation combined external expansion type cable-stayed bridge steel tower construction method which comprises the steps that a bridge lower structure and a main beam are constructed; a vertical rotating tower and a vertical rotating hinge are installed on the top face of the box girder, two tower bodies of the vertical rotating tower are symmetrically arranged along the longitudinal bridge direction center line, and the top of the vertical rotating tower is horizontally connected to the transverse bridge direction; an upper tower column assembling jig frame is erected on the top face of the box girder in the longitudinal bridge direction, so that vertical rotation of an upper tower column is conducted on the top face of the box girder in the later period, and the vertical rotation plane coincides with the middle line of the bridge in the longitudinal bridge direction; assembling an upper tower column and an upper cross beam on the jig frame; a traction cable and a back cable are installed, and the upper tower column rotates vertically; welding and joining the upper cross beam; a horizontal rotating device is installed on the top face of the box girder, and horizontal rotating of the upper tower column can be achieved through rotation of the horizontal rotating device. Closing the tower columns; permanent inhaul cable installation; and constructing a bridge deck system and ancillary facilities. The construction method has the beneficial effect that the steel tower structure of the external expansion type cable-stayed bridge can be constructed under the condition that the safe operation of the existing railway is not influenced.
本发明属于桥梁工程建设技术领域，尤其涉及一种竖转与平转结合的外张型斜拉桥钢塔施工方法，包括步骤：施工桥梁下部结构及主梁；在箱梁顶面安装竖转塔架及竖转铰，竖转塔架的两塔架沿纵桥向中线对称布置，顶部平联横桥向布置；在箱梁顶面、沿纵桥向搭设上塔柱组拼胎架，使后期上塔柱的竖转在箱梁顶面进行，且竖转平面与桥梁纵桥向方向的中线重合；在胎架上组拼上塔柱以及上横梁；安装牵引索和背索，上塔柱竖转；上横梁焊接合龙；在箱梁顶面安装平转装置，通过平转装置的转动可实现上塔柱平转；塔柱合龙；永久拉索安装；桥面系及附属设施施工。本发明的有益效果是：可在不影响既有铁路安全运行的情况下施工外张型斜拉桥钢塔结构。
Vertical rotation and horizontal rotation combined external expansion type cable-stayed bridge steel tower construction method
一种竖转与平转结合的外张型斜拉桥钢塔施工方法
CAI SONGBAO (author) / LIU XIAOMIN (author) / ZHOU JUNLONG (author) / XIE PENGLIN (author) / LI FEI (author) / YI QIANG (author) / XUE SONG (author) / GENG WENBIN (author) / LI XIAOPENG (author) / ZHAO XU (author)
2024-01-09
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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