Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cable-stayed buckling linear control installation construction method for large-span steel tube arch bridge
The invention belongs to the field of infrastructures, and particularly relates to a cable-stayed buckling linear control installation construction method for a large-span steel tube arch bridge. Bailey piece rapid assembly type cables are buckled into a tower, arch ribs are installed through a cable hoisting and cable-stayed buckling technology, and linear adjustment is conducted by means of retraction and release of the buckling cables and jacks between arch rib sections. Each section is stabilized by adopting a buckling and hanging method to achieve control of an expected line shape. And after each section is hoisted in place by adopting a cable crane, the section is temporarily fixed and finely adjusted through a buckling and hanging system, and is fixed after reaching an expected fixed position, so that hoisting and fine adjustment of all the sections are completed, and closure is realized. In the installation process, setting is conducted according to a pre-lifting elevation value of each section which is calculated and prepared in advance, and the purpose of controlling the arch rib linear shape is achieved. Due to the fact that the site is limited, a transverse position adjusting wind cable cannot be arranged, and the jack and a chain block are used for conducting left-right position adjusting on the arch rib.
本发明属于基础设施领域，具体涉及一种大跨度钢管拱桥斜拉扣挂线性控制安装施工方法。本发明采用贝雷片快速装配式索、扣合一塔架，采用缆索吊和斜拉扣挂工艺安装拱肋，借助扣索的收放和拱肋节段间千斤顶进行线形调整。采用扣挂法稳定每一节段，达到预期线形的控制。每一节段采用缆索吊吊装到位后，通过扣挂体系临时固定和微调，达到预期固定位置后固定，进而完成所有节段的吊装及微调，实现合龙。安装过程中，按照提前计算拟定的各节段预抬标高值进行设置，达到对拱肋线形控制的目的。由于现场场地受限，无法设置横向调位风缆，采用千斤顶和手拉葫芦对拱肋进行左右调位。
Cable-stayed buckling linear control installation construction method for large-span steel tube arch bridge
The invention belongs to the field of infrastructures, and particularly relates to a cable-stayed buckling linear control installation construction method for a large-span steel tube arch bridge. Bailey piece rapid assembly type cables are buckled into a tower, arch ribs are installed through a cable hoisting and cable-stayed buckling technology, and linear adjustment is conducted by means of retraction and release of the buckling cables and jacks between arch rib sections. Each section is stabilized by adopting a buckling and hanging method to achieve control of an expected line shape. And after each section is hoisted in place by adopting a cable crane, the section is temporarily fixed and finely adjusted through a buckling and hanging system, and is fixed after reaching an expected fixed position, so that hoisting and fine adjustment of all the sections are completed, and closure is realized. In the installation process, setting is conducted according to a pre-lifting elevation value of each section which is calculated and prepared in advance, and the purpose of controlling the arch rib linear shape is achieved. Due to the fact that the site is limited, a transverse position adjusting wind cable cannot be arranged, and the jack and a chain block are used for conducting left-right position adjusting on the arch rib.
本发明属于基础设施领域，具体涉及一种大跨度钢管拱桥斜拉扣挂线性控制安装施工方法。本发明采用贝雷片快速装配式索、扣合一塔架，采用缆索吊和斜拉扣挂工艺安装拱肋，借助扣索的收放和拱肋节段间千斤顶进行线形调整。采用扣挂法稳定每一节段，达到预期线形的控制。每一节段采用缆索吊吊装到位后，通过扣挂体系临时固定和微调，达到预期固定位置后固定，进而完成所有节段的吊装及微调，实现合龙。安装过程中，按照提前计算拟定的各节段预抬标高值进行设置，达到对拱肋线形控制的目的。由于现场场地受限，无法设置横向调位风缆，采用千斤顶和手拉葫芦对拱肋进行左右调位。
Cable-stayed buckling linear control installation construction method for large-span steel tube arch bridge
一种大跨度钢管拱桥斜拉扣挂线性控制安装施工方法
BIE XIAOSONG (Autor:in) / LIU JIANYONG (Autor:in) / PENG JIE (Autor:in) / ZHAN SHURUI (Autor:in) / ZHANG JINYU (Autor:in) / HUANG CHAOFENG (Autor:in) / QIN PENGJU (Autor:in) / XUE XINGWANG (Autor:in)
05.11.2021
Patent
Elektronische Ressource
Chinesisch
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