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Chain link type automatic synchronous tensioning system and method for prestressed wire ropes

An automatic synchronization, wire rope technology, used in building maintenance, erection/assembly of bridges, bridge maintenance, etc., can solve the problems of difficult installation, increased self-weight, low efficiency, etc., to improve the efficiency and effect of reinforcement, avoid reducing bearing capacity, The effect of improving construction efficiency

Active Publication Date: 2017-02-22
JIANGXI GANYUE EXPRESSWAY +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing reinforcement methods mainly have the following problems: (1) There is a stress hysteresis effect between the reinforcement material and the original component, and the ability to work together is poor, which greatly affects the reinforcement effect; (2) The anchorage length at the end of the reinforcement material is not enough, and it is easy to find Peeling damage, can not give full play to the strength of the material; (3) increase the cross-sectional size of the original component, increase the self-weight, affect the view and use
However, the tensioning device and method of the existing prestressed steel wire rope reinforcement technology are not mature enough, and there are problems of inconvenient use, difficult installation and low efficiency in engineering applications

Method used

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  • Chain link type automatic synchronous tensioning system and method for prestressed wire ropes
  • Chain link type automatic synchronous tensioning system and method for prestressed wire ropes
  • Chain link type automatic synchronous tensioning system and method for prestressed wire ropes

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings.

[0033] Such as figure 1 A chain-type prestressed steel wire rope automatic synchronous tensioning system is shown, including an anchor plate 1, which is fixed on the structure 15 to be reinforced by planting bars 2; a plurality of main threaded rods are threaded in parallel in the anchor plate 1 6. One end of the main threaded rod 6 is connected to the threaded sleeve 4 through an internal thread, and the other end of the threaded sleeve is connected to the steel wire rope 3; after the other end of the main threaded rod 6 passes through the opening of the anchor plate 1, it is fixed with an anchor toothed nut 11; One side of the anchor plate 1 is provided with a tensioning bracket 7, and after each main threaded rod 6 penetrates into the tensioning bracket 7, it is respectively connected to the auxiliary threaded rod 17 through the connecting sleeve 8, and the other en...

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Abstract

The invention discloses a chain link type automatic synchronous tensioning system and method for prestressed wire ropes. The chain link type automatic synchronous tensioning system comprises an anchor plate, wherein the anchor plate is fixed on a structure to be reinforced through planted bars; a plurality of main threaded rods are arranged in the anchor plate in a parallel and penetrating manner; one end of each of the main threaded rods is connected with a corresponding screw sleeve, and the other end of each of the screw sleeves is connected with a corresponding steel wire rope; after the other end of each of the main threaded rods penetrates through a corresponding opening of the anchor plate, the other end of each of the main threaded rods is fixed by a corresponding anchoring toothed nut; a tensioning bracket is arranged on one side of the anchor plate; after the main threaded rods penetrate in the tensioning bracket, each of the main threaded rods is connected with a corresponding secondary threaded rod through a corresponding connecting sleeve; after the other ends of the secondary threaded rods penetrate out of the tensioning bracket, the other ends of the secondary threaded rods are separately fixed on the tensioning bracket by corresponding tensioning toothed nuts; and the anchoring toothed nuts and the tensioning toothed nuts are separately connected with a driving mechanism. According to the chain link type automatic synchronous tensioning system disclosed by the invention, anchoring a plurality of steel wire ropes can be realized through one anchor plate, so that the reinforcing efficiency and the reinforcing effect of a conventional structure are improved; and synchronous tensioning and synchronous locking are performed on all the steel wire ropes on the anchor plate, so that the situation that the bearing capacity is reduced due to uneven distribution of the prestressing force of the steel wire ropes is avoided, and the automatic synchronous tensioning system is convenient to use, and simple and high-efficiency to mount.

Description

technical field [0001] The invention relates to the technical field of civil engineering and transportation, in particular to an automatic synchronous stretching system and method for a chain-type prestressed steel wire rope. Background technique [0002] Due to the influence of material aging, construction quality, natural or man-made factors, many existing hollow slab structures of bridges and houses are in urgent need of repair and reinforcement, and countries all over the world spend huge sums of money on this every year. Existing structural reinforcement technologies mainly include enlarging section method, bonding steel reinforcement method, pasting fiber composite material reinforcement method, adding fulcrum reinforcement method, steel strand mesh-polymer mortar reinforcement method, etc. The existing reinforcement methods mainly have the following problems: (1) There is a stress hysteresis effect between the reinforcement material and the original component, and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D22/00E04G23/02
CPCE01D22/00E04G23/0218E04G23/0237
Inventor 吁新华李兴华吴刚蒋剑彪
Owner JIANGXI GANYUE EXPRESSWAY
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