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Anchor rod device and method for reinforcing section through anchoring of anchor rod device

An anchor rod and reinforcement layer technology, applied in building maintenance, construction, building construction, etc., can solve the problems of reducing the bond strength of the new and old interfaces, the concrete is not full, and the construction procedures are cumbersome, and achieve good economy and applicability. , tight bonding, simple and efficient effect

Inactive Publication Date: 2016-10-12
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, concrete cracks are mainly filled by injecting epoxy resin into the concrete through implantation holes under high pressure. However, this method is too cumbersome to use in the method of enlarging the cross-section reinforcement method, and it is easy to cause reinforcement after injecting the resin slurry and then spraying the concrete. The concrete at the reinforcement position is not full and there are certain gaps, which reduces the bond strength between the old and new interfaces

Method used

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  • Anchor rod device and method for reinforcing section through anchoring of anchor rod device
  • Anchor rod device and method for reinforcing section through anchoring of anchor rod device
  • Anchor rod device and method for reinforcing section through anchoring of anchor rod device

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Embodiment Construction

[0038] As shown in the drawings, the bolt device of the present invention includes a bolt 1, a positioning nut 2, a fastening nut 3 and a pressure plate 4;

[0039] Anchor rod 1 is a threaded pipe with outer diameter d w The insertion end of the anchor rod 1 is provided with a separation groove communicating with the threaded hole. The anchor rod 1 is axially divided into a hollow section 11, a transition section 12 and a slotted section 13 with separation grooves. The length l of the hollow section 11 z 55mm, aperture d n is 6mm. The length l of the transition section 12 g is 8 mm, and the inner diameter of the transition section 12 gradually converges along the axial direction. The slotted section 13 has a separation groove, which is an axially extending cross groove, and is used to divide the rod body of the anchor rod 1 into several deformed parts that are extruded and expanded outward. The length of the cross groove is l k 17mm, width d k is 2mm.

[0040] The posi...

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Abstract

The invention discloses an anchor rod device which comprises an anchor rod, a positioning nut, a clamp nut and a pressing plate, wherein the anchor rod is sleeved with the positioning nut and the clamp nut, and the pressing plate is used for accommodating the anchor rod. An inner threaded hole is formed in the anchor rod, a parting groove communicating with the threaded hole is formed in the inserting end of the anchor rod, and the parting groove is used for dividing a rod body into a plurality of deformation portions which expand outwards after being extruded. The clamp nut is used for fixing the pressing plate. According to the anchor rod device, the planting depth of the anchor rod can be effectively controlled, on the one hand, the phenomenon that a concrete protection layer of a member to be reinforced is stripped off and damaged is avoided, and on the other hand, the interfacial peeling damage phenomenon between a reinforced layer and the member to be reinforced can be avoided. The invention further discloses a method for reinforcing a section through anchoring of the anchor rod device.

Description

technical field [0001] The invention relates to the field of mechanical devices, in particular to a bolt device and a method for reinforcing a section by anchoring with the bolt device. Background technique [0002] The enlarged section reinforcement method is often referred to as the enlarged section reinforcement method. It achieves the purpose of improving the bearing capacity, stiffness and stability of the component by using the same or better material as the original component, pouring concrete on the outside of the original component and adding enough steel bars to increase the cross-sectional size of the component. At present, the enlarging cross-section reinforcement method faces the same problems as other reinforcement methods, such as the peeling of the new and old interfaces and the peeling of the concrete protective layer. [0003] By setting a certain number of anchor bolts, the interface peeling can be effectively prevented, and when the anchor bolts are impl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G23/02E04B1/41
CPCE04B1/4157E04G23/0218
Inventor 张大伟陈驹金伟良施海锋李忠练其安
Owner ZHEJIANG UNIV
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