A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Steel tube arch bridge arch rib rapid closure construction method
The invention relates to a steel tube arch bridge arch rib rapid closure construction method. The method comprises the steps that four threaded sleeves are welded to steel base plates at the two endsof an arch rib closure section in the circumferential direction at equal intervals, and a bolt is connected into each threaded sleeve in a threaded mode; after the closure section is hoisted to a designed mounting position, each bolt is screwed out by a certain length by adopting a torque wrench, so that the end parts of the bolts tightly abut against flanges at the end parts of arch rib sectionsin butt joint with the closure section; and the bolts are welded to the butt joint section arch rib flanges. According to the construction method, instantaneous closure of arch ribs can be achieved, so that the aerial work time is greatly shortened, and the construction efficiency is improved; and the closure construction is not influenced by the environment temperature, so that the construction convenience is enhanced, and the construction difficulty is reduced.
本发明涉及一种钢管拱桥拱肋快速合龙施工方法，在拱肋合龙段两端钢垫板上分别环向等距焊接4个螺纹套筒，每个螺纹套筒中螺接一螺栓；合龙段起吊至设计安装位置后，采用扭力扳手将每个螺栓拧出一定长度，使顶紧与合龙段对接的拱肋节段端部法兰；并将螺栓与对接段拱肋法兰焊接。本发明可实现拱肋瞬时合龙，大大缩短高空作业时间，提高施工效率；进行合龙施工不受环境温度影响，增强了施工便利性，降低了施工难度。
Steel tube arch bridge arch rib rapid closure construction method
The invention relates to a steel tube arch bridge arch rib rapid closure construction method. The method comprises the steps that four threaded sleeves are welded to steel base plates at the two endsof an arch rib closure section in the circumferential direction at equal intervals, and a bolt is connected into each threaded sleeve in a threaded mode; after the closure section is hoisted to a designed mounting position, each bolt is screwed out by a certain length by adopting a torque wrench, so that the end parts of the bolts tightly abut against flanges at the end parts of arch rib sectionsin butt joint with the closure section; and the bolts are welded to the butt joint section arch rib flanges. According to the construction method, instantaneous closure of arch ribs can be achieved, so that the aerial work time is greatly shortened, and the construction efficiency is improved; and the closure construction is not influenced by the environment temperature, so that the construction convenience is enhanced, and the construction difficulty is reduced.
本发明涉及一种钢管拱桥拱肋快速合龙施工方法，在拱肋合龙段两端钢垫板上分别环向等距焊接4个螺纹套筒，每个螺纹套筒中螺接一螺栓；合龙段起吊至设计安装位置后，采用扭力扳手将每个螺栓拧出一定长度，使顶紧与合龙段对接的拱肋节段端部法兰；并将螺栓与对接段拱肋法兰焊接。本发明可实现拱肋瞬时合龙，大大缩短高空作业时间，提高施工效率；进行合龙施工不受环境温度影响，增强了施工便利性，降低了施工难度。
Steel tube arch bridge arch rib rapid closure construction method
一种钢管拱桥拱肋快速合龙施工方法
SHI SHAOLONG (author) / DANG YANFENG (author) / WANG JINGYU (author) / YANG HAO (author) / YANG YU (author) / TAN LINJUN (author) / WANG LEI (author) / WU YANJIE (author)
2020-12-08
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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