FRP component with ribs and construction method for combination between FRP component and concrete

Abstract

The invention discloses an FRP component with ribs. The FRP component with the ribs comprises FRP basic splicing blocks, wherein each FRP basic splicing block is composed of an FRP basic base plate on the lower portion and an FRP basic longitudinal slab rib arranged on the top of the FRP basic base plate, a convex key and / or a concave key is additionally arranged on the side wall of each FRP basic base plate, and the FRP basic splicing blocks are connected in an interlocking mode to form the FRP component with the ribs. The FRP component with the ribs is easy and convenient to manufacture and splice, the construction speed is high, the size of the FRP component is not limited by the size of the FRP basic splicing blocks, and splicing is flexibly carried out according to the requirement for the actual size of the FRP component with the ribs. A construction method for combining the FRP component and concrete to form a bridge deck comprises the following steps that the FRP basic splicing blocks provided with the convex keys and / or the concave keys and transverse through holes are manufactured; the FRP basic splicing blocks are spliced; transverse rebars penetrating through the holes are arranged, and the surface course concrete is poured. The formed FRP and concrete combination bridge deck integrates the advantages, of being high in compressive strength and low in cost, of the concrete and the advantages, of being high in tensile strength and high in duration performance, of FRP, and the whole FRP component is excellent in structural performance and considerable in economic performance.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering, and in particular relates to a ribbed FRP component and a construction method in which the ribbed FRP component is combined with concrete to form a bridge deck. Background technique [0002] In the application field of civil engineering technology, fiber reinforced plastics (hereinafter referred to as FRP) are favored because of their high strength, low surface density, good fatigue resistance and corrosion resistance, among which FRP bridge decks are particularly valued. According to the material composition, the FRP bridge deck can be divided into full FRP bridge deck and FRP-concrete composite bridge deck. However, the price of FRP materials is higher than that of steel and concrete. The full FRP bridge deck has disadvantages such as large initial investment, low stiffness, and difficulty in connecting with the main girder. , has not been widely used. Patent 201320209441.3 disclose...

AI Technical Summary

Problems solved by technology

However, the manufacturing cost of FRP components is relatively high, and the manufacturing cost of molds required for FRP components of different structural shapes is also high, and the size of FRP components is limited by the size of the mold required for making FRP components. For this reason, patent 201310731522.4 Disclosed is a manufacturing method of a ribbed FRP member, forming a ribbed FRP member by high-pressure injection of glue in the gap between adjacent FRP basic blocks, and the size of the ribbed FRP member thus formed is not affected by the size of the FRP basic block It can be assembled arbitrarily according to the actual size of the ribbed FRP member at the construction site

However, it is difficult to implement the process of high-pressure injection of glue into the gaps between adjacent FRP basic blocks, because it is difficult to ensure the formation of high-pressure glue

Furthermore, high-pressure glue injection needs to arrange glue injection nozzles, and do edge sealing around the gaps, etc. The construction process is relatively cumbersome

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