6 results about "Frp reinforcement" patented technology

The application relates to a residual compressive strength prediction method of FRP reinforced nano-modified UHPC after high-temperature exposure. The residual compressive strength prediction method of FRP reinforced nano-modified UHPC after high-temperature exposure provided by the application comprises the following steps: UHPC characteristic vectors are obtained by respectively preprocessing UHPC proportioning parameters and nano material parameters, and the UHPC characteristic vectors are respectively subjected to feature extraction together with FRP reinforcement parameters to respectively obtain UHPC features and FRP reinforcement features, and then the features are sequentially subjected to feature fusion, and deep feature extraction is performed together with a high-temperature exposure parameter to obtain high-temperature exposure UHPC features, which are respectively connected with the UHPC features and the FRP reinforcement features to respectively generate residual compressive features of high-temperature UHPC and high-temperature FRP; and the residual compressive features of the high-temperature UHPC and the high-temperature FRP are subjected to feature fusion and prediction to obtain a residual strength value. The residual compressive strength prediction method of FRP reinforced nano-modified UHPC provided by the application improves the residual strength prediction accuracy of FRP reinforced nano-modified UHPC after high-temperature exposure.

The utility model relates to FRP (fiber reinforce plastic) rib material forming equipment which comprises a forming equipment body and FRP rib materials, the front end of the left side of the forming equipment body is fixedly connected with a fixed frame, the lower end face in the fixed frame is fixedly connected with a plurality of rotating frames II, the interiors of the rotating frames II are rotatably connected with curved wheels II, and a moving plate is arranged above the curved wheels II; a plurality of first rotating frames are fixedly connected to the lower end face of the movable plate, first curved wheels are rotationally connected into the first rotating frames, openings are formed in the two side faces of the fixed frame, and limiting sliding blocks slidably connected with the interiors of limiting sliding grooves formed in the inner surface of the fixed frame are fixedly connected to the left side face and the right side face of the movable plate. And the movable plate is connected with the fixed frame through a lifting mechanism. According to the FRP rib material forming equipment disclosed by the utility model, the use distance between the curved wheel I and the curved wheel II can be adjusted according to FRP rib materials with different diameters, so that the use effect is improved, and the FRP rib material forming equipment is relatively practical.

The application belongs to the technical field of fireproof materials, and particularly relates to a non-expanding fireproof coating for fiber reinforced composite materials and a preparation method and application thereof. In the preparation raw materials of the non-expanding fireproof coating, the binder comprises metakaolin, fly ash, CA80 high-aluminum cement and an activator, or comprises metakaolin, fly ash, CA80 high-aluminum cement, an activator and an organic binder, the organic binder comprises redispersible emulsion powder and / or polyvinyl alcohol powder, the heat-insulating filler comprises expanded vermiculite, hydrophobically modified expanded perlite, sepiolite and hollow glass microspheres, the flame retardant comprises aluminum hydroxide and magnesium hydroxide, the fiber comprises glass fiber, and the additives comprise a foaming agent, a thickening agent, a foam stabilizer and an acrylic emulsion. The formed coating has the advantages of low carbon, low cost, excellent heat-insulating performance and high-temperature strength, can be applied as a fireproof coating for fiber reinforced composite materials (FRP), and can effectively protect the FRP reinforcement system.

This utility model belongs to the technical field of testing equipment, and particularly relates to a testing device for FRP (fiberglass reinforced plastic) anchored seawater sand-polymer concrete. It includes a loading reaction frame and a reaction frame support. The loading reaction frame has a testing cavity, within which is a placement position for placing the FRP anchor. The placement position has a through hole penetrating the testing cavity. The reaction frame support is located between the placement position and the FRP anchor, abutting against the surface of the concrete specimen containing the FRP anchor. The reaction frame support also has a matching hole corresponding to the through hole, which is adapted to the size of the FRP anchor and allows it to pass through. This addition of a matching reaction frame support prevents the formation of a cone-shaped structure on the surface of the concrete specimen during the pull-out test.

The application relates to a concrete reinforcement cage, discloses an FRP reinforcement cage, a production device and a manufacturing method, the FRP reinforcement cage comprises FRP reinforcements which are cross-connected with each other, the FRP reinforcement comprises a plurality of reinforced fiber layers which are covered by resin, the reinforced fiber layers with different directions at the cross-connection points of the FRP reinforcement are staggered layer by layer, and the FRP reinforcement is integrally formed by being covered by the resin, so that the FRP reinforcement cage has the advantages of high structural stability. The production device of the FRP reinforcement cage comprises a composite fiber forming device, a fiber bundle conveying device, a movable workbench, a resin impregnation device, a resin-impregnated fiber output device and a reinforcement cage forming roller, the resin-impregnated fiber output device comprises an output guide frame and a grouping guide roller, different numbers of composite reinforced fiber bundles can be grouped and combined, FRP reinforcement layer bundles which are distributed at intervals are formed, and the FRP reinforcement cage has the advantages of high manufacturing efficiency and convenient parameter adjustment. The application further discloses a manufacturing method of the FRP reinforcement cage.

Method for connecting rebar intersections of a foldable FRP rebar cage to allow folding and unfolding of the cage to facilitate transportation one or more rebar cages.