Combined prestressed anchorage device
A prestressed and combined technology, applied in the field of anchors, can solve the problems of the tensile length shrinkage of the steel strand and the loss of the prestressing of the steel strand.
Pending Publication Date: 2022-07-12
汪昊野
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Problems solved by technology
[0003] At present, prestressed anchors are mostly used in engineering construction. When the existing prestressed anchors are used, the steel strands are stretched by tension jacks to provide a certain prestress for the steel strands. After the stretching is completed, they pass The pre-tightening force of the steel strand itself makes the clip clamp the steel strand, and during the locking process, the tensile length of the steel strand will shrink, resulting in the loss of the prestress of the steel strand
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[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "top", "bottom", "front", " Or The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying th...
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The invention relates to the technical field of anchorage devices, in particular to a combined prestressed anchorage device which comprises an anchor backing plate, a corrugated pipe is fixedly installed on the anchor backing plate, a locking anchor is installed on the anchor backing plate, four first stranded wire holes are evenly formed in the locking anchor, first clamping pieces are arranged in the four first stranded wire holes in a sleeved mode, and a second clamping piece is arranged in the first clamping pieces. The locking anchor is provided with a pre-tightening assembly, the pre-tightening assembly comprises four pre-tightening screw rods fixedly installed on the locking anchor and a pre-tightening plate connected to the four pre-tightening screw rods in a sliding mode, and the pre-tightening plate is provided with a second wire twisting hole with the same size as the first wire twisting hole of the locking anchor; the four pre-tightening screws are located between the locking anchor and the pre-tightening plate and are in threaded connection with pre-tightening nuts, and the pre-tightening plate is provided with a pressing assembly. The pre-tightening device and the pressing assembly are arranged on the locking anchor, so that the problem that the steel strand shrinks in the steel strand clamping process of a clamping piece, and consequently the prestress of the steel strand is lost is solved.
Description
technical field [0001] The invention relates to the technical field of anchors, in particular to a combined prestressed anchor. Background technique [0002] Anchorage refers to a permanent anchoring device used in prestressed concrete. It is an anchoring tool in a post-tensioned structure or component to maintain the tensile force of the steel strand and transmit it to the interior of the concrete. It is also called a prestressed anchor. Tool. [0003] At present, prestressed anchors are mostly used in engineering construction. When the existing prestressed anchors are used, the steel strand is stretched by the tension jack to provide a certain prestress for the steel strand. The pretension of the strand itself causes the clips to clamp the strand, and during the locking process, the stretched length of the strand shrinks, resulting in a loss of strand prestress. [0004] To this end, a combined prestressed anchor is proposed. SUMMARY OF THE INVENTION [0005] The purp...
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IPC IPC(8): E04C5/12B08B1/02B08B1/20
CPCE04C5/12B08B1/20B08B1/12Y02E10/50
Inventor 汪昊野李一朱辰宇
Owner 汪昊野