Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The steel box girder is composed of a plurality of box girder sections, each box girder section comprises a girder bottom plate, webs arranged at the two ends of the girder bottom plate and a middle transverse partition plate arranged on the girder bottom plate and between the two webs, and the upper ends of the girder bottom plate, the webs and the middle transverse partition plates are jointly connected with a girder top plate; a longitudinal partition plate is arranged at the center position between the beam top plate and the beam bottom plate, and the distance between the two web plates is gradually increased from bottom to top. The method comprises the specific steps that a beam bottom plate of a steel box beam is hoisted to a pier to be positioned and preliminarily fixed through spot welding, a web plate, a middle transverse partition plate, a longitudinal partition plate and a beam top plate are hoisted in sequence, every two adjacent connected beam sections are temporarily positioned and connected through a flexible part, and then box beam sections are formed through welding in sequence; and the adjacent box girder sections are welded to form the steel box girder. The method has the following advantages that welding deformation and generation of secondary internal force of the structure are reduced, and the steel box girder is protected against stress damage.
本发明涉及一种钢箱梁的吊装焊接工艺，钢箱梁由多个箱梁节段组成，箱梁节段包括梁底板、设置在梁底板两端的腹板以及设置在梁底板上及两个腹板之间的中间横向隔板，梁底板、腹板以及中间横向隔板的上端共同连接有梁顶板，梁顶板与梁底板之间的中心位置具有纵向隔板，两个腹板之间的间距由下至上逐步递增；具体步骤包括：将钢箱梁的梁底板吊装至桥墩上定位并通过点焊初步固定，依次吊装腹板、中间横向隔板、纵向隔板以及梁顶板，相邻连接的两个梁段之间通过柔性件进行临时定位连接，再依次焊接形成箱梁节段，相邻箱梁节段焊接形成钢箱梁。本发明具有如下优点：减小焊接变形和结构次内力的产生，保护钢箱梁免遭应力破坏。
The steel box girder is composed of a plurality of box girder sections, each box girder section comprises a girder bottom plate, webs arranged at the two ends of the girder bottom plate and a middle transverse partition plate arranged on the girder bottom plate and between the two webs, and the upper ends of the girder bottom plate, the webs and the middle transverse partition plates are jointly connected with a girder top plate; a longitudinal partition plate is arranged at the center position between the beam top plate and the beam bottom plate, and the distance between the two web plates is gradually increased from bottom to top. The method comprises the specific steps that a beam bottom plate of a steel box beam is hoisted to a pier to be positioned and preliminarily fixed through spot welding, a web plate, a middle transverse partition plate, a longitudinal partition plate and a beam top plate are hoisted in sequence, every two adjacent connected beam sections are temporarily positioned and connected through a flexible part, and then box beam sections are formed through welding in sequence; and the adjacent box girder sections are welded to form the steel box girder. The method has the following advantages that welding deformation and generation of secondary internal force of the structure are reduced, and the steel box girder is protected against stress damage.
本发明涉及一种钢箱梁的吊装焊接工艺，钢箱梁由多个箱梁节段组成，箱梁节段包括梁底板、设置在梁底板两端的腹板以及设置在梁底板上及两个腹板之间的中间横向隔板，梁底板、腹板以及中间横向隔板的上端共同连接有梁顶板，梁顶板与梁底板之间的中心位置具有纵向隔板，两个腹板之间的间距由下至上逐步递增；具体步骤包括：将钢箱梁的梁底板吊装至桥墩上定位并通过点焊初步固定，依次吊装腹板、中间横向隔板、纵向隔板以及梁顶板，相邻连接的两个梁段之间通过柔性件进行临时定位连接，再依次焊接形成箱梁节段，相邻箱梁节段焊接形成钢箱梁。本发明具有如下优点：减小焊接变形和结构次内力的产生，保护钢箱梁免遭应力破坏。
Hoisting and welding process for steel box girder
一种钢箱梁的吊装焊接工艺
28.07.2023
Patent
Elektronische Ressource
Chinesisch
Large-segment steel box girder hoisting and welding method
| Europäisches Patentamt | 2024