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A platform for research: civil engineering, architecture and urbanism
Large-span steel box girder prestressed structure
The invention discloses a large-span steel box girder prestressed structure, and relates to the technical field of steel box girders. The number of the end stiffening rib plates is two, the two end stiffening rib plates are fixedly connected to the interior of the steel box girder respectively, and a penetrating hole is formed in each end stiffening rib plate; the prestress tensioning mechanism comprises a guide pipe, a prestress steel strand, an extrusion anchor and a tensioning anchor assembly; the two ends of the guide pipe make contact with the two end stiffening rib plates correspondingly, and the edge of the guide pipe is located on the periphery of the penetrating hole. The prestressed steel strands are arranged in the guide pipe in a penetrating mode, one end of each prestressed steel strand is fixed to the corresponding end stiffening rib plate through the corresponding extrusion anchor, and the other end of each prestressed steel strand is fixed to the other end stiffening rib plate through the corresponding tension anchor assembly so that prestress can be applied to the steel box girder. The shearing resistance of the large-span steel box girder prestressed structure can be improved, better supporting and balanced stress states are achieved, and therefore the bearing capacity of the steel box girder is improved.
本发明公开了一种大跨度钢箱梁预应力结构，涉及钢箱梁技术领域，包括：钢箱梁；端部加劲肋板，设有两个，两个端部加劲肋板分别固定连接在钢箱梁的内部，每个端部加劲肋板上均设置有穿设孔；预应力张拉机构，包括导管、预应力钢绞线、挤压锚和张拉锚组件；导管的两端分别与两个端部加劲肋板接触，且导管的边缘位于穿设孔的外围；预应力钢绞线设有多根，多根预应力钢绞线均穿设在导管的内部，预应力钢绞线的一端通过挤压锚与端部加劲肋板固定，另一端通过张拉锚组件固定在另一个端部加劲肋板上，以实现对钢箱梁施加预应力。本发明能够提高大跨度钢箱梁预应力结构的抗剪性能，实现更好的支撑和均衡受力状态，从而提升钢箱梁的承载能力。
Large-span steel box girder prestressed structure
The invention discloses a large-span steel box girder prestressed structure, and relates to the technical field of steel box girders. The number of the end stiffening rib plates is two, the two end stiffening rib plates are fixedly connected to the interior of the steel box girder respectively, and a penetrating hole is formed in each end stiffening rib plate; the prestress tensioning mechanism comprises a guide pipe, a prestress steel strand, an extrusion anchor and a tensioning anchor assembly; the two ends of the guide pipe make contact with the two end stiffening rib plates correspondingly, and the edge of the guide pipe is located on the periphery of the penetrating hole. The prestressed steel strands are arranged in the guide pipe in a penetrating mode, one end of each prestressed steel strand is fixed to the corresponding end stiffening rib plate through the corresponding extrusion anchor, and the other end of each prestressed steel strand is fixed to the other end stiffening rib plate through the corresponding tension anchor assembly so that prestress can be applied to the steel box girder. The shearing resistance of the large-span steel box girder prestressed structure can be improved, better supporting and balanced stress states are achieved, and therefore the bearing capacity of the steel box girder is improved.
本发明公开了一种大跨度钢箱梁预应力结构，涉及钢箱梁技术领域，包括：钢箱梁；端部加劲肋板，设有两个，两个端部加劲肋板分别固定连接在钢箱梁的内部，每个端部加劲肋板上均设置有穿设孔；预应力张拉机构，包括导管、预应力钢绞线、挤压锚和张拉锚组件；导管的两端分别与两个端部加劲肋板接触，且导管的边缘位于穿设孔的外围；预应力钢绞线设有多根，多根预应力钢绞线均穿设在导管的内部，预应力钢绞线的一端通过挤压锚与端部加劲肋板固定，另一端通过张拉锚组件固定在另一个端部加劲肋板上，以实现对钢箱梁施加预应力。本发明能够提高大跨度钢箱梁预应力结构的抗剪性能，实现更好的支撑和均衡受力状态，从而提升钢箱梁的承载能力。
Large-span steel box girder prestressed structure
一种大跨度钢箱梁预应力结构
WANG FEI (author) / SU KAI (author) / WANG YONGGANG (author) / HUANG YUN (author) / CHEN WEIJIAN (author) / ZHANG MENGJIE (author) / HUANG JIN (author)
2023-09-08
Patent
Electronic Resource
Chinese
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