A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Prestressed anchorage device for synchronous and coordinated tensioning and mounting method
The invention belongs to the technical field of slope protection, and particularly relates to a prestressed anchorage device for synchronous and coordinated tensioning and an installation method. The prestressed anchorage device is in a frustum shape, a plurality of bent holes penetrating from the bottom of a frustum to the side conical surface of the frustum are formed in the prestressed anchorage device, and the bent holes are circumferentially formed with the central axis of the prestressed anchorage device as the axis. On the basis of a traditional anchorage device, the upper surface is ingeniously arranged to be in a conical polyhedron shape, all anchor cables can be tensioned in all directions independently, the working area of the jacks is further increased, and the requirement for synchronous and coordinated tensioning of the multiple jacks can be well met. The arc-shaped anchor cable penetrating-out hole is formed, bending surrounding support is provided for the anchor cable, the problem that an anchor cable anchoring hole opening is bent is avoided, oblique force on the anchor cable when the pre-stressed anchor cable is tensioned is effectively converted into axial force along the anchor cable, and the tensioning effect can be guaranteed.
本发明属于坡面防护技术领域，特别涉及一种用于同步协调张拉的预应力锚具及安装方法。所述预应力锚具为锥台形，所述预应力锚具上设置有若干个从锥台底部贯穿至锥台侧锥面的弯形孔，若干所述弯形孔以所述预应力锚具的中轴线为轴周向布置。本发明巧妙地在传统锚具的基础上将上表面设置成锥形多面体形状，使得各束锚索能够单独向各个方向张拉，进一步增大千斤顶工作面积，能够很好的满足多千斤顶同步协调张拉需求。本发明设置弧形形状锚索穿出孔，为锚索提供弯折围绕支撑，避免了锚索锚固孔口处发生折角的问题，有效的将预应力锚索张拉时对锚索的斜向力转化为沿锚索的轴向力，又能保证张拉效果。
Prestressed anchorage device for synchronous and coordinated tensioning and mounting method
The invention belongs to the technical field of slope protection, and particularly relates to a prestressed anchorage device for synchronous and coordinated tensioning and an installation method. The prestressed anchorage device is in a frustum shape, a plurality of bent holes penetrating from the bottom of a frustum to the side conical surface of the frustum are formed in the prestressed anchorage device, and the bent holes are circumferentially formed with the central axis of the prestressed anchorage device as the axis. On the basis of a traditional anchorage device, the upper surface is ingeniously arranged to be in a conical polyhedron shape, all anchor cables can be tensioned in all directions independently, the working area of the jacks is further increased, and the requirement for synchronous and coordinated tensioning of the multiple jacks can be well met. The arc-shaped anchor cable penetrating-out hole is formed, bending surrounding support is provided for the anchor cable, the problem that an anchor cable anchoring hole opening is bent is avoided, oblique force on the anchor cable when the pre-stressed anchor cable is tensioned is effectively converted into axial force along the anchor cable, and the tensioning effect can be guaranteed.
本发明属于坡面防护技术领域，特别涉及一种用于同步协调张拉的预应力锚具及安装方法。所述预应力锚具为锥台形，所述预应力锚具上设置有若干个从锥台底部贯穿至锥台侧锥面的弯形孔，若干所述弯形孔以所述预应力锚具的中轴线为轴周向布置。本发明巧妙地在传统锚具的基础上将上表面设置成锥形多面体形状，使得各束锚索能够单独向各个方向张拉，进一步增大千斤顶工作面积，能够很好的满足多千斤顶同步协调张拉需求。本发明设置弧形形状锚索穿出孔，为锚索提供弯折围绕支撑，避免了锚索锚固孔口处发生折角的问题，有效的将预应力锚索张拉时对锚索的斜向力转化为沿锚索的轴向力，又能保证张拉效果。
Prestressed anchorage device for synchronous and coordinated tensioning and mounting method
一种用于同步协调张拉的预应力锚具及安装方法
HE JIANG (author) / LIU WANRU (author) / ZHANG TAO (author) / XUE YUAN (author) / DAI WEI (author) / FU ZHENGDAO (author) / ZHANG SHUO (author) / LI RUI (author) / JIANG RUIXUE (author) / XIAO HANG (author)
2023-10-13
Patent
Electronic Resource
Chinese
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