Tensioned anchorage device and using method of tensioned anchorage device

Abstract

The invention provides a tensioned anchorage device and a using method of the tensioned anchorage device. The tensioned anchorage device comprises a fixed end structure, a tensioned end structure and a fiber plate, wherein the fixed end structure is provided with a fixed end anchorage base, and a fixed end fixture is connected to the fixed end anchorage base; the tensioned end structure is provided with a tensioned end anchorage base, two tensioned rods are arranged on the tensioned end anchorage base in a penetrated mode, the ends, far away from the fixed end structure, of the two tensioned rods are connected with a locking nut and a rear counter-force plate, the locking nut abuts against the tensioned end anchorage base, and a plurality of jacks are arranged between the rear counter-force plate and the tensioned end anchorage base side by side; one end of the fiber plate is connected with a tensioned end fixture, the other end of the fiber plate is connected with the fixed end fixture, and the tensioned end fixture is connected with the ends, close to the fixed end structure, of the two tensioned rods. By means of the tensioned anchorage device and the using method of the tensioned anchorage device, reliable connection between the fiber plate and a structural object can be achieved, the tensioned uniformity of the fiber plate is guaranteed, the tensioned anchorage device is small in size, flexible in arrangement and rapid and convenient to construct.

Description

technical field [0001] The present invention relates to a tension anchoring device and its usage method, in particular to a tensioning anchorage device applied in the field of structural reinforcement engineering and its usage method. Background technique [0002] At present, as an excellent tensile material, high-strength fiberboard has been widely used in the field of structural reinforcement engineering. From the point of view of the strengthening effect of structures, the reinforcement effect of directly pasting the fiber board on the surface of the structure is not obvious, and the fiber board is easy to peel off when the structure is seriously damaged; and the metal anchor clamp is used to clamp the fiber board. At the end, the reinforcement effect of prestressing the fiberboard and connecting it with the structure is very significant, and the anchoring performance is also very reliable. [0003] When the existing anchor fixture clamps the fiber sheet, stress concentr...

AI Technical Summary

Problems solved by technology

The tension anchor system generally adopts a concentric tension method to ensure the axial force of each component of the tension anchor system. Due to the structural constraints of the jack and the anchor seat at the tension end, this system will inevitably cause the fiber sheet to be far away from the surface of the structure. The distance from the surface of the structure is generally greater than 6cm, which makes it difficult to fix and bond the fiber sheet to the surface of the structure; although the eccentric stretching method can make the fiber sheet close to the surface of the structure, due to the distance between the axis of the jack and the tension rod and the fiber sheet The misalignment of the axes will inevitably lead to bending deformation and local wear of the tension rod

Therefore, the existing tension anchoring system will not only increase the difficulty of on-site installation and construction, reduce the reliability of the mechanical performance of the reinforcement system, but also occupy a large clearance near the structure or have a great impact on the traffic below the structure

[0005] In addition, in the existing tension anchoring system, the assembly at the tension end of the fiberboard must first penetrate the tension reaction plate in the prefabrication stage in the factory, and then install the anchor fixture. The existence of the tension reaction plate increases the coil Difficulty in packaging, on the one hand, tensioning the reaction plate during the transportation of the assembled parts is easy to wear the fiber plate

At present, there is a tension reaction plate that is connected and assembled from upper and lower parts in the thickness direction. The tension reaction plate has a preset notch for the fiber plate to pass through. Although this tension reaction plate can It can be assembled at the construction site, but the overall rigidity of the assembled tension reaction plate is small, and the assembly accuracy of the tension reaction plate is not easy to guarantee, which may easily lead to deformation, dislocation and damage of the assembled tension reaction plate. Uneven force, so it is not easy to ensure the uniformity of tension of fiberboard

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