Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Large-span heavy steel box girder self-balancing anchoring integral in-situ lifting structure and lifting method
According to the self-balancing anchoring integral in-situ lifting structure and method for the large-span heavy steel box girder, a lifting girder is fixedly arranged on the upper portion of a pier, core-penetrating hydraulic lifters and anchor cables are fixedly arranged at the two ends of the upper portion of the lifting girder, the anchor cable on one side is fixedly connected with the ground, and the anchor cable on the other side is used for lifting the steel box girder; therefore, the self-balancing anchoring integral in-situ lifting structure is formed. When the steel box girder is lifted, the anchor cables fixedly connected with the ground synchronously apply prestress through the core-penetrating hydraulic lifters, the prestress is balanced with the stress of the lifting anchor cables, the bridge pier is prevented from bearing overlarge bending moment and deforming, and therefore the width of a welding seam when the steel box girder is lifted in place is guaranteed. The large-span heavy steel box girder self-balancing anchoring integral in-situ lifting structure has the advantages of being simple in structure, small in engineering amount and low in cost, the construction operation difficulty can be greatly reduced, the large-span heavy steel box girder lifting operation efficiency is improved, and meanwhile the final bridge forming quality is guaranteed.
一种大跨度重型钢箱梁自平衡锚定整体原位提升结构及提升方法，在桥墩上部固定设置提升大梁，提升大梁上部两端均固定设置穿芯液压提升器和锚索，一侧锚索与地面固定连接，另一侧锚索用于提升钢箱梁，从而构成自平衡锚定整体原位提升结构；钢箱梁提升时，与地面固定连接的锚索通过穿芯液压提升器同步施加预应力，与提升锚索应力相平衡，避免桥墩承受过大弯曲力矩变形，从而保证了钢箱梁提升到位时的焊缝宽度；大跨度重型钢箱梁自平衡锚定整体原位提升结构具有结构简单、工程量小、成本低的优点，可大幅降低施工作业难度，提高大跨度重型钢箱梁提升作业效率，同时保证了最终成桥质量。
Large-span heavy steel box girder self-balancing anchoring integral in-situ lifting structure and lifting method
According to the self-balancing anchoring integral in-situ lifting structure and method for the large-span heavy steel box girder, a lifting girder is fixedly arranged on the upper portion of a pier, core-penetrating hydraulic lifters and anchor cables are fixedly arranged at the two ends of the upper portion of the lifting girder, the anchor cable on one side is fixedly connected with the ground, and the anchor cable on the other side is used for lifting the steel box girder; therefore, the self-balancing anchoring integral in-situ lifting structure is formed. When the steel box girder is lifted, the anchor cables fixedly connected with the ground synchronously apply prestress through the core-penetrating hydraulic lifters, the prestress is balanced with the stress of the lifting anchor cables, the bridge pier is prevented from bearing overlarge bending moment and deforming, and therefore the width of a welding seam when the steel box girder is lifted in place is guaranteed. The large-span heavy steel box girder self-balancing anchoring integral in-situ lifting structure has the advantages of being simple in structure, small in engineering amount and low in cost, the construction operation difficulty can be greatly reduced, the large-span heavy steel box girder lifting operation efficiency is improved, and meanwhile the final bridge forming quality is guaranteed.
一种大跨度重型钢箱梁自平衡锚定整体原位提升结构及提升方法，在桥墩上部固定设置提升大梁，提升大梁上部两端均固定设置穿芯液压提升器和锚索，一侧锚索与地面固定连接，另一侧锚索用于提升钢箱梁，从而构成自平衡锚定整体原位提升结构；钢箱梁提升时，与地面固定连接的锚索通过穿芯液压提升器同步施加预应力，与提升锚索应力相平衡，避免桥墩承受过大弯曲力矩变形，从而保证了钢箱梁提升到位时的焊缝宽度；大跨度重型钢箱梁自平衡锚定整体原位提升结构具有结构简单、工程量小、成本低的优点，可大幅降低施工作业难度，提高大跨度重型钢箱梁提升作业效率，同时保证了最终成桥质量。
Large-span heavy steel box girder self-balancing anchoring integral in-situ lifting structure and lifting method
一种大跨度重型钢箱梁自平衡锚定整体原位提升结构及提升方法
LIU XIAOFENG (Autor:in) / ZHENG WENFEI (Autor:in) / WU PENGYAN (Autor:in) / ZHAO DONGHAI (Autor:in) / ZHU SHUHONG (Autor:in) / SUN YADI (Autor:in) / GENG ZHI (Autor:in) / LI WENJIE (Autor:in)
09.08.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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