Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Overall assembling method for ultra-wide framing steel box girder
The invention discloses an overall assembling method for an ultra-wide framing steel box girder, and relates to the technical field of steel box girder assembling. The method comprises the steps performing plate unit manufacturing and plate assembly welding, beam section matching assembly welding and pre-assembling and pre-assembling inspection; carrying out beam section assembly welding accordingto the sequence of a bottom plate, a transverse partition plate, a middle top plate, a primary positioning inner web plate, an anchor web plate, other top plates, a secondary positioning anchor web plate, a middle cross beam and a cantilever arm block, and carrying out three-dimensional stepped propelling mode section-by-section assembly and welding; and during pre-assembling, with considerationof the influence of beam section compression amount caused by welding circular seam shrinkage amount and cable force on the length, correcting the accumulated total length and error of the previous pre-assembling in the next assembly. The method has the advantages that the butt joint weld joint amount of the steel box girder on the total assembly jig frame can be reduced, and the manufacturing period is shortened; a three-dimensional step-shaped propelling mode is adopted, pre-assembling is carried out after section-by-section assembly welding, and the boundary dimension is easy to control; the assembling precision of the steel box girder can be ensured, the assembling quality is controlled, high-altitude adjustment is avoided, and the erection period is shortened.
本发明公开了一种超宽分幅钢箱梁整体拼装方法，它涉及钢箱梁拼装技术领域。它包括板单元制造及板块组焊、梁段匹配组焊以及预拼装、预拼装检查，按照底板、横隔板、中间顶板、初次定位内腹板及锚腹板、其余顶板、二次定位锚腹板、中间横梁、挑臂块体的顺序对梁段组焊，进行立体阶梯形推进方式逐段组装与焊接；预拼装时需考虑焊接环缝收缩量和索力引起的梁段压缩量对长度的影响，上一次预拼装累计总长和误差宜在下次拼装中修正。本发明的优点在于：能减少钢箱梁在总拼装胎架上对接的焊缝量，缩短制造周期；立体阶梯形推进方式逐段组焊后预拼装，外形尺寸易控制；可确保钢箱梁组装精度，拼装质量得到控制，避免在高空进行调整，缩短架设周期。
Overall assembling method for ultra-wide framing steel box girder
The invention discloses an overall assembling method for an ultra-wide framing steel box girder, and relates to the technical field of steel box girder assembling. The method comprises the steps performing plate unit manufacturing and plate assembly welding, beam section matching assembly welding and pre-assembling and pre-assembling inspection; carrying out beam section assembly welding accordingto the sequence of a bottom plate, a transverse partition plate, a middle top plate, a primary positioning inner web plate, an anchor web plate, other top plates, a secondary positioning anchor web plate, a middle cross beam and a cantilever arm block, and carrying out three-dimensional stepped propelling mode section-by-section assembly and welding; and during pre-assembling, with considerationof the influence of beam section compression amount caused by welding circular seam shrinkage amount and cable force on the length, correcting the accumulated total length and error of the previous pre-assembling in the next assembly. The method has the advantages that the butt joint weld joint amount of the steel box girder on the total assembly jig frame can be reduced, and the manufacturing period is shortened; a three-dimensional step-shaped propelling mode is adopted, pre-assembling is carried out after section-by-section assembly welding, and the boundary dimension is easy to control; the assembling precision of the steel box girder can be ensured, the assembling quality is controlled, high-altitude adjustment is avoided, and the erection period is shortened.
本发明公开了一种超宽分幅钢箱梁整体拼装方法，它涉及钢箱梁拼装技术领域。它包括板单元制造及板块组焊、梁段匹配组焊以及预拼装、预拼装检查，按照底板、横隔板、中间顶板、初次定位内腹板及锚腹板、其余顶板、二次定位锚腹板、中间横梁、挑臂块体的顺序对梁段组焊，进行立体阶梯形推进方式逐段组装与焊接；预拼装时需考虑焊接环缝收缩量和索力引起的梁段压缩量对长度的影响，上一次预拼装累计总长和误差宜在下次拼装中修正。本发明的优点在于：能减少钢箱梁在总拼装胎架上对接的焊缝量，缩短制造周期；立体阶梯形推进方式逐段组焊后预拼装，外形尺寸易控制；可确保钢箱梁组装精度，拼装质量得到控制，避免在高空进行调整，缩短架设周期。
Overall assembling method for ultra-wide framing steel box girder
一种超宽分幅钢箱梁整体拼装方法
MA HAOPENG (Autor:in) / ZHANG PING (Autor:in) / XUE JUN (Autor:in) / NIE LIHENG (Autor:in) / LI WEI (Autor:in) / ZHANG LANPENG (Autor:in) / HUANG DONGDONG (Autor:in) / JIA XIUFENG (Autor:in) / YANG RUIRUI (Autor:in)
13.11.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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