A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a bridge prestress tensioning device, which mainly relates to the technical field of bridge construction and comprises a prestress hole, a steel strand, a frustum-shaped clamping piece, an upper positioning plate and a lower positioning plate, through holes are formed in the centers of the upper positioning plate and the lower positioning plate, and conical screws are arranged in the through holes; a plurality of tensioning blocks are evenly arranged on the periphery of the conical screw between the upper positioning plate and the lower positioning plate, guide hole columns corresponding to the upper positioning plate and the lower positioning plate are arranged on the tensioning blocks, penetrating sliding grooves are formed in the upper positioning plate and the lower positioning plate, the guide hole columns are connected in the sliding grooves in a sliding mode, and the upper positioning plate and the lower positioning plate are connected with a tubular workpiece. The tensioning blocks are connected with the inner wall of the tubular workpiece through a reset spring. The end of the conical screw is connected with a fastening plate. The steel strand tensioning device is ingenious in structural improvement, the tensioning block and the conical screw are used for tensioning a steel strand and ejecting the conical clamping piece into a hole site of the pre-buried anchorage device pad, springback is prevented, the engineering quality of a bridge can be guaranteed, and operation is more convenient and safer.
本发明公开了一种桥梁预应力张拉装置，主要涉及桥梁建设技术领域，包括预应力孔、钢绞线、锥台形夹片、上定位板、下定位板，上定位板、下定位板的中心均设有通孔，通孔内设有锥形螺杆，上定位板、下定位板之间位于锥形螺杆的外周均匀设有若干的张紧块，张紧块上设有与上定位板、下定位板对应的导向孔柱，在上定位板、下定位板上设有贯穿的滑槽，导向孔柱在滑槽内滑动连接，上定位板、下定位板与管状工件连接，张紧块通过复位弹簧连接管状工件内壁，锥形螺杆端部连接紧定板，其结构改进巧妙，利用张紧块、锥形螺杆作将钢绞线张紧并将锥形夹片顶入预埋锚具垫的孔位中，且防止回弹，可以确保桥梁的工程质量，操作更方便安全。
The invention discloses a bridge prestress tensioning device, which mainly relates to the technical field of bridge construction and comprises a prestress hole, a steel strand, a frustum-shaped clamping piece, an upper positioning plate and a lower positioning plate, through holes are formed in the centers of the upper positioning plate and the lower positioning plate, and conical screws are arranged in the through holes; a plurality of tensioning blocks are evenly arranged on the periphery of the conical screw between the upper positioning plate and the lower positioning plate, guide hole columns corresponding to the upper positioning plate and the lower positioning plate are arranged on the tensioning blocks, penetrating sliding grooves are formed in the upper positioning plate and the lower positioning plate, the guide hole columns are connected in the sliding grooves in a sliding mode, and the upper positioning plate and the lower positioning plate are connected with a tubular workpiece. The tensioning blocks are connected with the inner wall of the tubular workpiece through a reset spring. The end of the conical screw is connected with a fastening plate. The steel strand tensioning device is ingenious in structural improvement, the tensioning block and the conical screw are used for tensioning a steel strand and ejecting the conical clamping piece into a hole site of the pre-buried anchorage device pad, springback is prevented, the engineering quality of a bridge can be guaranteed, and operation is more convenient and safer.
本发明公开了一种桥梁预应力张拉装置，主要涉及桥梁建设技术领域，包括预应力孔、钢绞线、锥台形夹片、上定位板、下定位板，上定位板、下定位板的中心均设有通孔，通孔内设有锥形螺杆，上定位板、下定位板之间位于锥形螺杆的外周均匀设有若干的张紧块，张紧块上设有与上定位板、下定位板对应的导向孔柱，在上定位板、下定位板上设有贯穿的滑槽，导向孔柱在滑槽内滑动连接，上定位板、下定位板与管状工件连接，张紧块通过复位弹簧连接管状工件内壁，锥形螺杆端部连接紧定板，其结构改进巧妙，利用张紧块、锥形螺杆作将钢绞线张紧并将锥形夹片顶入预埋锚具垫的孔位中，且防止回弹，可以确保桥梁的工程质量，操作更方便安全。
Bridge prestress tensioning device
一种桥梁预应力张拉装置
LYU SHIKUAN (author)
2021-03-09
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken