Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Side span steel truss girder incremental launching construction method
The invention discloses an incremental launching construction method for a side span steel truss girder. The incremental launching construction method comprises the following steps: arranging a pier-side bracket, a slideway beam, a sliding block and a walking top, and splicing a guide beam and a girder erection crane on a main pier. A steel truss girder and a guide girder are hoisted by a girder erecting crane to be assembled, and fiber grating strain sensors are arranged at the jacking positions of the guide girder and the steel truss girder. The walking top pushes the steel truss girder, the guide beam and the sliding block towards the side span along the slide way beam, the sliding block is moved back after the steel truss girder is jacked to be separated from the sliding block, and then the steel truss girder falls on the sliding block; and the guide beam is dismantled when moving the abutment pier until the steel truss beam moves to the abutment pier. Multi-point synchronization is achieved through the combination of the walking top and the sliding block, the sliding block bears the steel truss girder to slide with small force, synchronism is good, three-direction adjustment is achieved, and controllability is high; the walking top for transverse deviation correction and synchronous jacking is matched with the fiber grating strain sensor for real-time detection, the state of the steel truss girder is automatically judged, the deviation condition is judged, and deviation correction is conducted in time. The method also has the advantages of improving the construction efficiency and saving the construction cost.
本发明公开了一种边跨钢桁梁顶推施工方法，包括以下步骤：布置墩旁托架、滑道梁、滑块及步履顶，在主墩拼导梁及架梁吊机。架梁吊机吊钢桁梁与导梁拼装，导梁和钢桁梁起顶处设光纤光栅应变传感器。步履顶将钢桁梁、导梁、滑块沿滑道梁向边跨顶推，起顶钢桁梁与滑块脱离后将滑块回移，再将钢桁梁落到滑块上；导梁移动边墩时拆除，直至钢桁梁移动至边墩。本发明通过“步履顶+滑块”组合实现多点同步，用较小的力使滑块承载钢桁梁滑移，同步性好、三向可调节，可控性高；横向纠偏和同步顶升的步履顶配合实时检测的光纤光栅应变传感器，自动判断钢桁梁状态，判断即将偏移情况并及时纠偏。本发明还具有提升施工效率、节约施工成本的优点。
Side span steel truss girder incremental launching construction method
The invention discloses an incremental launching construction method for a side span steel truss girder. The incremental launching construction method comprises the following steps: arranging a pier-side bracket, a slideway beam, a sliding block and a walking top, and splicing a guide beam and a girder erection crane on a main pier. A steel truss girder and a guide girder are hoisted by a girder erecting crane to be assembled, and fiber grating strain sensors are arranged at the jacking positions of the guide girder and the steel truss girder. The walking top pushes the steel truss girder, the guide beam and the sliding block towards the side span along the slide way beam, the sliding block is moved back after the steel truss girder is jacked to be separated from the sliding block, and then the steel truss girder falls on the sliding block; and the guide beam is dismantled when moving the abutment pier until the steel truss beam moves to the abutment pier. Multi-point synchronization is achieved through the combination of the walking top and the sliding block, the sliding block bears the steel truss girder to slide with small force, synchronism is good, three-direction adjustment is achieved, and controllability is high; the walking top for transverse deviation correction and synchronous jacking is matched with the fiber grating strain sensor for real-time detection, the state of the steel truss girder is automatically judged, the deviation condition is judged, and deviation correction is conducted in time. The method also has the advantages of improving the construction efficiency and saving the construction cost.
本发明公开了一种边跨钢桁梁顶推施工方法，包括以下步骤：布置墩旁托架、滑道梁、滑块及步履顶，在主墩拼导梁及架梁吊机。架梁吊机吊钢桁梁与导梁拼装，导梁和钢桁梁起顶处设光纤光栅应变传感器。步履顶将钢桁梁、导梁、滑块沿滑道梁向边跨顶推，起顶钢桁梁与滑块脱离后将滑块回移，再将钢桁梁落到滑块上；导梁移动边墩时拆除，直至钢桁梁移动至边墩。本发明通过“步履顶+滑块”组合实现多点同步，用较小的力使滑块承载钢桁梁滑移，同步性好、三向可调节，可控性高；横向纠偏和同步顶升的步履顶配合实时检测的光纤光栅应变传感器，自动判断钢桁梁状态，判断即将偏移情况并及时纠偏。本发明还具有提升施工效率、节约施工成本的优点。
Side span steel truss girder incremental launching construction method
一种边跨钢桁梁顶推施工方法
LI JIANG (Autor:in) / MEDA (Autor:in) / YANG LEIMIN (Autor:in) / BIE SHIYONG (Autor:in) / ZHONG ZHENYUN (Autor:in) / ZHONG LIANGGEN (Autor:in) / WAN MING (Autor:in) / WEN YAPING (Autor:in) / YU PEICHI (Autor:in) / YE SHAOQI (Autor:in)
06.08.2024
Patent
Elektronische Ressource
Chinesisch
Large-span steel truss girder incremental launching construction device and method
| Europäisches Patentamt | 2024
Large-span steel truss girder bridge incremental launching construction auxiliary device and method
| Europäisches Patentamt | 2024
Reinforcing device for incremental launching construction of large-span steel truss girder bridge
| Europäisches Patentamt | 2024
Incremental launching construction method of steel truss girder bridge
| Europäisches Patentamt | 2023
Large steel truss girder incremental launching construction structure and method
| Europäisches Patentamt | 2021