A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Steel strand bundle prestress anchoring device for bridge construction and tensioning method
The invention discloses a steel strand bundle prestress anchoring device for bridge construction, comprising: a steel strand bundle comprising steel strands; the anchor plate is located on the tensioning side of a given prestressed duct, and base holes in one-to-one correspondence with the steel strands are formed in the anchor plate; corresponding to the penetrating-out end of the steel strand, the base hole is provided with a conical hole section; the working clamping pieces are in one-to-one correspondence with the conical hole sections and are used for reversely restraining the steel strand after the steel strand passes through the working clamping pieces; the taper of the working clamping piece is the same as that of the conical hole section, and the height of the working clamping piece is smaller than that of the conical hole section; the large bottom diameter of the working clamping piece is smaller than that of the conical hole section, so that after the working clamping piece is embedded into the conical hole section, an adjusting space is reserved on the tensioning side of the anchor plate and on the conical hole section; the adjusting gaskets are located in the adjusting space and used for determining the number of the adjusting gaskets according to the tensioning force of different steel strands. According to the invention, the bearing force of each steel strand in the steel strand bundle can be relatively balanced.
本发明公开了一种桥梁施工用钢绞线束预应力锚固装置，包括：钢绞线束，包括钢绞线；锚板，位于给定的预应力孔道的张拉侧，该锚板上开有与所述钢绞线一一对应的基孔；相应于钢绞线的穿出端，基孔设有锥形孔段；工作夹片，与所述锥形孔段一一对应，用于钢绞线穿过后的反向约束；并且工作夹片的锥度与所述锥形孔段的锥度相同，高度小于锥形孔段的高度；工作夹片的大底直径小于锥形孔段的大底直径，从而在工作夹片嵌入锥形孔段后，于锚板的张拉侧，锥形孔段留有调整空间；调整垫片，位于所述调整空间内，用于根据不同钢绞线的张拉力确定调整垫片的数量。依据本发明能够使钢绞线束中各根钢绞线承力相对均衡。
Steel strand bundle prestress anchoring device for bridge construction and tensioning method
The invention discloses a steel strand bundle prestress anchoring device for bridge construction, comprising: a steel strand bundle comprising steel strands; the anchor plate is located on the tensioning side of a given prestressed duct, and base holes in one-to-one correspondence with the steel strands are formed in the anchor plate; corresponding to the penetrating-out end of the steel strand, the base hole is provided with a conical hole section; the working clamping pieces are in one-to-one correspondence with the conical hole sections and are used for reversely restraining the steel strand after the steel strand passes through the working clamping pieces; the taper of the working clamping piece is the same as that of the conical hole section, and the height of the working clamping piece is smaller than that of the conical hole section; the large bottom diameter of the working clamping piece is smaller than that of the conical hole section, so that after the working clamping piece is embedded into the conical hole section, an adjusting space is reserved on the tensioning side of the anchor plate and on the conical hole section; the adjusting gaskets are located in the adjusting space and used for determining the number of the adjusting gaskets according to the tensioning force of different steel strands. According to the invention, the bearing force of each steel strand in the steel strand bundle can be relatively balanced.
本发明公开了一种桥梁施工用钢绞线束预应力锚固装置，包括：钢绞线束，包括钢绞线；锚板，位于给定的预应力孔道的张拉侧，该锚板上开有与所述钢绞线一一对应的基孔；相应于钢绞线的穿出端，基孔设有锥形孔段；工作夹片，与所述锥形孔段一一对应，用于钢绞线穿过后的反向约束；并且工作夹片的锥度与所述锥形孔段的锥度相同，高度小于锥形孔段的高度；工作夹片的大底直径小于锥形孔段的大底直径，从而在工作夹片嵌入锥形孔段后，于锚板的张拉侧，锥形孔段留有调整空间；调整垫片，位于所述调整空间内，用于根据不同钢绞线的张拉力确定调整垫片的数量。依据本发明能够使钢绞线束中各根钢绞线承力相对均衡。
Steel strand bundle prestress anchoring device for bridge construction and tensioning method
桥梁施工用钢绞线束预应力锚固装置及张拉方法
WANG SHOUREN (author) / WEN DAOSHENG (author) / WANG GAOQI (author) / YANG XUEFENG (author) / XIA DIANXIU (author) / LIU WENTAO (author)
2023-11-24
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
Prestress automatic tensioning anchoring equipment and tensioning method
| European Patent Office | 2021