Composite material intelligent anchorage with self-monitoring function and preparation method thereof

Abstract

The invention discloses a composite material intelligent anchorage with the self-monitoring function and a preparation method and relates to the technical field of novel building composite materials and sensors. The intelligent anchorage comprises sensing optical fibers (10), an anchor cup (20) and a clamping piece (30), wherein the clamping piece (30) and the anchor cup (20) are in inside-outside connection along the middle axial line, and the sensing optical fibers (10) are respectively embedded in the anchor cup (20) and the clamping piece (30). The preparation method of the intelligent anchorage comprises the following steps: (1) preparing a die and preparing materials; (2) soaking the prepared materials in resin; (3) filling the die; (4) closing the die; (5) stripping and polishing; and (6) welding a connecting port of the sensing optical fibers. The intelligent anchorage has the advantages of simple structure, low manufacturing cost, safety and reliability in the construction of a building structure, good durability and strong flexibility, and is used for anchoring prestressed tendons in a prestressed concrete structure and extensively applicable to house buildings, bridge beams, underground structures, pits, mine shafts, tunnels, slopes and other buildings.

Description

technical field [0001] The invention relates to the technical field of novel architectural composite material anchors and sensors, in particular to a composite material intelligent anchor with self-monitoring function and a preparation method thereof. Background technique [0002] The traditional steel strand anchor is made of steel material; its disadvantage is that it is easy to rust. [0003] The new FRP (Fiber Reinforced Polymer, fiber-reinforced polymer material) prestressed tendons and ropes are used in prestressed concrete to solve the corrosion problem. The key technology is the use of FRP anchors that also do not rust. "A FRP Reinforcement Anchor" (patent application number: 200920289624.4; patent application date: December 29, 2009) meets the engineering needs in this regard. [0004] Existing prestressed steel strand extrusion anchors and other anchors have the problem that they cannot be directly applied to anchors of prestressed tendons or ropes to check and mo...

AI Technical Summary

Problems solved by technology

Many scholars at home and abroad have done research on the packaging technology of optical fiber sensors, such as packaging the sensor in a thin metal sleeve or burying it between layers of FRP sheets, and then pasting it on the anchor for detection. The firmness, stability, and durability of the sensor paste still need to be studied, and the production process is not mature enough to achieve large-scale production and use

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