Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cable-stayed bridge mid-span closure method and closure system of tower beam pier consolidation system
The invention relates to a cable-stayed bridge midspan closure method and system of a tower beam pier consolidation system, and the method comprises the steps that cantilever section steel beams are installed on two main towers correspondingly to form closure openings, and the main towers are of tower beam pier consolidation structures; a first opposite jacking device is installed on the two cantilever section steel beams, and an opposite jacking experiment is conducted through the first opposite jacking device to confirm the adjusting range of the closure opening; a closure section steel beam is hoisted under the closure opening; the first opposite jacking device is used for executing jacking to enable the actual length of the closure opening to be larger than the length of the closure section steel beam; and the closure section steel beam is lifted to a closure opening, and the closure section steel beam is connected with the two cantilever section steel beams. The first opposite jacking devices are installed on the cantilever section steel beams on the two sides of the closure opening to apply the active opposite jacking force, the cantilever section steel beams on the main towers on the two sides are forced to move integrally, even if the closure temperature is inconsistent with the design temperature, the design temperature difference elongation can be offset, the closure section steel beams do not need to be cut in a matched mode, the construction period can be shortened, and the construction cost is reduced. And the closure precision is also improved.
本申请涉及一种塔梁墩固结体系的斜拉桥中跨合龙方法及合龙系统，包括：在两主塔上分别安装悬臂段钢梁，以形成合龙口，主塔为塔梁墩固结结构；在两悬臂段钢梁上安装第一对顶装置，利用第一对顶装置进行对顶实验确认所述合龙口的调整范围；将合龙段钢梁吊装于合龙口正下方；利用第一对顶装置执行顶推使合龙口的实际长度大于合龙段钢梁的长度；提升合龙段钢梁至合龙口，将合龙段钢梁与两悬臂段钢梁进行连接。本发明通过在合龙口两侧的悬臂段钢梁上安装第一对顶装置施加主动对顶力，迫使两侧主塔上悬臂段钢梁整体发生位移，即使合龙温度与设计温度不一致，也可抵消设计温差伸长量，合龙段钢梁无需配切，既可以缩短工期，也提高了合龙精度。
Cable-stayed bridge mid-span closure method and closure system of tower beam pier consolidation system
The invention relates to a cable-stayed bridge midspan closure method and system of a tower beam pier consolidation system, and the method comprises the steps that cantilever section steel beams are installed on two main towers correspondingly to form closure openings, and the main towers are of tower beam pier consolidation structures; a first opposite jacking device is installed on the two cantilever section steel beams, and an opposite jacking experiment is conducted through the first opposite jacking device to confirm the adjusting range of the closure opening; a closure section steel beam is hoisted under the closure opening; the first opposite jacking device is used for executing jacking to enable the actual length of the closure opening to be larger than the length of the closure section steel beam; and the closure section steel beam is lifted to a closure opening, and the closure section steel beam is connected with the two cantilever section steel beams. The first opposite jacking devices are installed on the cantilever section steel beams on the two sides of the closure opening to apply the active opposite jacking force, the cantilever section steel beams on the main towers on the two sides are forced to move integrally, even if the closure temperature is inconsistent with the design temperature, the design temperature difference elongation can be offset, the closure section steel beams do not need to be cut in a matched mode, the construction period can be shortened, and the construction cost is reduced. And the closure precision is also improved.
本申请涉及一种塔梁墩固结体系的斜拉桥中跨合龙方法及合龙系统，包括：在两主塔上分别安装悬臂段钢梁，以形成合龙口，主塔为塔梁墩固结结构；在两悬臂段钢梁上安装第一对顶装置，利用第一对顶装置进行对顶实验确认所述合龙口的调整范围；将合龙段钢梁吊装于合龙口正下方；利用第一对顶装置执行顶推使合龙口的实际长度大于合龙段钢梁的长度；提升合龙段钢梁至合龙口，将合龙段钢梁与两悬臂段钢梁进行连接。本发明通过在合龙口两侧的悬臂段钢梁上安装第一对顶装置施加主动对顶力，迫使两侧主塔上悬臂段钢梁整体发生位移，即使合龙温度与设计温度不一致，也可抵消设计温差伸长量，合龙段钢梁无需配切，既可以缩短工期，也提高了合龙精度。
Cable-stayed bridge mid-span closure method and closure system of tower beam pier consolidation system
一种塔梁墩固结体系的斜拉桥中跨合龙方法及合龙系统
JIA WEIZHONG (Autor:in) / WEI JIANFENG (Autor:in) / DENG YONGFENG (Autor:in) / CHEN XIAOJIAN (Autor:in) / LI LINLIN (Autor:in) / XU JIN (Autor:in) / CAO MINGMING (Autor:in) / CHEN MINGFENG (Autor:in) / JIANG HAIMING (Autor:in) / XU JIANXIANG (Autor:in)
31.01.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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