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Tensile anchoring system device for bridge prestressed carbon fiber plate

A carbon fiber plate and anchoring system technology, which is applied in bridge maintenance, bridge reinforcement, bridge and other directions, can solve the problems of wasting high strength and superior performance of carbon fiber plate, and it is difficult to bear long-term, stable and effective load clamping force, etc., to achieve excellent results , long life, ensure the effect of tension centering and torsion balance

Active Publication Date: 2015-12-02
中铁十七局集团城市建设有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the existing reinforcement methods, since the carbon fiber composite material has high tensile strength (2000-3000Mpa), the strength utilization of the carbon fiber plate is only less than 20% of the effective bearing capacity when no prestress is applied, which seriously wastes the high strength of the carbon fiber plate. superior performance
The fatigue caused by the impact load will make the bond between the carbon fiber plate and the concrete become invalid. At this time, the method of reducing the clamping force at both ends of the carbon fiber plate by initially bonding the carbon fiber plate and concrete into one body is difficult to bear. Long-term, stable and effective load holding force

Method used

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  • Tensile anchoring system device for bridge prestressed carbon fiber plate
  • Tensile anchoring system device for bridge prestressed carbon fiber plate
  • Tensile anchoring system device for bridge prestressed carbon fiber plate

Examples

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Comparison scheme
Effect test

Embodiment 1

[0036] Example 1 Figure 1 to Figure 3 As shown, the bridge prestressed carbon fiber board 110 tensile anchoring system device of the present invention includes a carbon fiber board 110. Both ends of the carbon fiber board 110 are connected with anchors 109, and the middle of the anchor 109 at one end of the carbon fiber board 110 A fixed rod 111 passes through the fixed plate 112, and the arc nut 101 sleeved on the fixed rod 111 is fitted on the fixed plate 112 with the arc surface; the middle of the anchor 109 at the other end of the carbon fiber plate 110 is fixed by a The rod 111 passes through the tension fixing plate 106, and the arc-shaped nut 101 sleeved on the fixing rod 111 is fitted with the arc surface of the tension fixing plate 106. A tension is arranged between the anchor 109 and the tension fixing plate 106. mechanism. The tensile fixing plate 106 and the fixing plate are fixed on the bottom surface of the bridge, wherein the tensile fixing plate 106 and the fix...

Embodiment 2

[0037] Example 2 such as Figure 4 to Figure 7 As shown, this embodiment 2 is similar to embodiment 1, which specifically includes a carbon fiber board 217. Both ends of the carbon fiber board 217 are connected with anchors 214, and the middle of the anchor 214 at one end of the carbon fiber board 217 passes through a The fixing rod 219 passes through the fixing plate, and the arc nut 202 sleeved on the fixing rod 219 is fitted with the arc surface of the fixing plate; the middle of the anchor 214 at the other end of the carbon fiber plate 217 passes through the fixing rod 219. Pull the fixing plate, the arc surface of the arc nut 202 sleeved on the fixing rod 219 is matched with the tension fixing plate, and a tension mechanism is set up between the anchor 214 and the tension fixing plate. The tensile fixing plate and the fixing plate are fixed on the bottom surface of the bridge, wherein the tensile fixing plate and the fixing plate are respectively provided with 4 long holes...

Embodiment 3

[0038] Embodiment 3 is similar to embodiment 1, except that: the tension mechanism includes an anchor tension seat fixed on the anchor 109 and a fixed plate tension seat fixed on the tension fixing plate 106, A tension fixing rod 103 is passed through the anchor tension seat and the fixed plate tension seat, and an arc nut 101 is sleeved on one end of the tension fixing rod 103 to fit on the anchor tension seat. , The other end of the tension fixing rod 103 is connected to a jack 102, and the jack 102 abuts against the tension seat of the fixed plate. An opening area is provided in the middle of the tension seat of the fixed plate, and a tension limit nut 105 is sleeved on the part of the tension and fixing rod 103 passing through the opening area. The end surface of the tension limit nut 105 It is an arc structure, so that the tension limit nut 105 and the inner side wall of the opening area on the fixed plate tension seat adopt an arc surface to match.

[0039] The bridge pre-...

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Abstract

The invention discloses a bridge prestress carbon fiber plate tensioning anchoring system device and belongs to the technical field of bridges. The device comprises a carbon fiber plate. The two ends of the carbon fiber plate are both connected with anchors. The middle portion of an anchor at one end of the carbon fiber plate penetrates through a fixing plate through a fixing rod. An arc nut arc face arranged on the fixing rod in a sleeved mode is matched on the fixing plate. The middle portion of the other anchor at the other end of the carbon fiber plate penetrates through a tensioning fixing plate through a fixing rod. An arc nut arc face arranged on the fixing rod in a sleeved mode is matched on the tensioning fixing plate. A tensioning mechanism is erected between the anchor and the tensioning fixing plate. The prestress carbon fiber plate is used for reinforcing a bridge, the carbon fiber plate is anchored and cannot slide in a continuous mode, stability is achieved, and cutting off cannot happen.

Description

Technical field [0001] The invention relates to the technical field of bridges, in particular to a tension anchoring system device for a prestressed carbon fiber board of a bridge. Background technique [0002] Carbon fiber board has the characteristics of tensile strength. It is a reinforcement method to improve the crack resistance and bending resistance of the bridge and enhance the load capacity of the bridge through prestressed tension and pasting to the bottom of the bridge. It has been used by more and more bridge design units and owners. Unit adopted. [0003] Prestressed concrete structure bridges are easily affected by many factors such as inadequate tension construction during new construction, improper grouting of bellows, overloading operation, low design load value due to historical reasons, aging and functional changes with the increase of service life, etc. To meet the requirements of operating strength, it is usually necessary to perform bending and intensity stre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D22/00
Inventor 方俊华
Owner 中铁十七局集团城市建设有限公司