The anchor rod fiberglass reinforcement
(57) Abstract:The invention relates to the construction, in particular the production of structures, prestressed GFRP rebar. Improving the manufacturability of works is achieved by making the alignment rod and the anchor and removing the guide element. Anchor rod fiberglass reinforcement (SPA) contains the Cup 1 with end diaphragms 2 from the side of the tensioner and 3 from the end of the rod having apertures with rounded 4 under rods 5 SPA. In the middle of the length of the anchor in the wall in the median plane made two holes: round screw part of the rod and oval 8 screw rod with eyelet, made at the same time. In the oval hole 8 is filled composite material. End aperture 2 with a thickness of not less than two diameters of the fixed rods has on the length of the channel of the cylindrical form 11 under the rod 5, which gives the alignment rod and the anchor. Support lugs rounded. End diaphragm 2,3 with rounding 4 under the rod 5 is screwed into the Cup 1. In hole insert screw rod with eyelet, made at the same time. Turn the eyelet 90 and the Cup is passed the rod 5 passing chere is Erina 5 to design value. In the fill hole 8 a composite material, for example epoxy resin. After hardening compound nut screw part vivencial, and the protruding part of the thrust is cut. The roundness of the holes of the end diaphragms and rounded bearing surfaces of the lugs reduce the concentration of stresses in the rod SPA at the point of inflection and support. 5 Il. The invention relates to the field of construction, in particular, to the production of structures prestressed GFRP rebar.A device for anchoring tension members made of high-strength materials (see and.with. USSR N 1057655 E 04 5/12, publ. 1982. ), consisting of a casing with a tapered bore. Items sankarani due to forces of friction wedges, with their subsequent pressing.The closest technical solution to the claimed is the anchor for a rod of fiberglass reinforcement (application Germany N 2705483, E 04 5/12, publ. 1979), consisting of filled composite glass with end diaphragms with holes for the rod. The length of the zone of the anchoring rods, based on the principle of coupling with composite, is 16.17 cm, which does not ensure the manufacturability of work due to the large length of the zone and the STI works by giving the alignment rod and the anchor.This task, which is aimed invention is achieved in that the anchor rod fiberglass reinforcement, containing the filled composite material of glass spaced respectively from the side of the tensioner and the end of the stem, end diaphragms having openings facing the inside of the Cup with the rounding under the rods fiberglass reinforcement, this anchor equipped with a screw thrust with an eye, which has a rounded bearing surface and through which is threaded a rod of fiberglass reinforcement, with the end aperture from the side of the tensioner is made with a thickness of not less than two diameters of the fixed rods fiberglass reinforcement, and channel it under the rod has a section of cylindrical shape with a length not less than half the thickness of the diaphragm.The curvature of the axis of the rod fiberglass reinforcement screw thrust with eyelet through the hole which is threaded a rod SPA, fill the internal cavity of the glass composite and setting the glass on the side tensioner end aperture with an increased thickness and a cylindrical hole rods SPA at length, not only reduces the length zo is Rina SPA and its anchors.The invention is illustrated by drawings, in which: Fig.1 shows a view of the anchor of Fig.2, in Fig.2 a section along B-B of the anchor of Fig.1, in Fig.3 a view of the anchor of Fig.2, in Fig.4,5 view and cross section of the screw rod with eyelet.The anchor rod fiberglass reinforcement contains a glass 1 with end diaphragms 2 from the side of the tensioner, and 3 - side end of the rod having apertures with rounded 4 under rods 5 fiberglass reinforcement. In the middle of the length of the anchor in the wall in the median plane with holes: round 6 for the screw part of the thrust 7 and oval 8 lugs 9 thrust screw 7 with the eyelet 9 is executed at the same time. In the oval hole 8 is filled composite material 10. End aperture 2 with a thickness of not less than two diameters of the fixed rods has on the length of the channel of the cylindrical form 11 under the rod 5 fiberglass reinforcement, giving the alignment rod and the anchor, and the plot has a cylindrical shape with a length not less than half the thickness of the diaphragm. Support lugs rounded. End diaphragm 2,3 with rounding 4 under the fiberglass rods valve is screwed into the Cup 1. The holes 6 and 8 insert screw rod 7 with the eyelet 9 is executed at the same time. PowerCinema lug 9. Then screw on part of the thrust 7 wrapped around the nut and screw scriplet axis of the rod 5 to the design size. In the fill hole 8 of the composite material 10, for example, epoxy resin. After hardening compound nut screw part vivencial, and the protruding portion of the screw thrust cut. The roundness of the holes of the end diaphragms and rounded bearing surface of the lugs reduce the concentration of stresses in the rod fiberglass reinforcement at the point of inflection and bearing.Thus, each rod fiberglass reinforcement has a small anchor length, observed the alignment rods and anchors, and this allows the use of rods of fiberglass reinforcement individually or campanulate of these powerful beams to prestress the structure. The anchor rod fiberglass reinforcement, containing the filled composite material of glass spaced respectively from the side of the tensioner and the end rod end diaphragms having openings facing the inside of the glass curves under the rod of fiberglass reinforcement, characterized in that it is equipped with a screw thrust with an eye, which has a rounded op is from the side of the tensioner is made with a thickness of not less than two diameters of the fixed rods fiberglass reinforcement, and channel it under the rod has a section of cylindrical shape with a length not less than half the thickness of the diaphragm.
SUBSTANCE: proposal is related to construction and repair of artificial structures, mostly bridges, namely to devices and accessories for production of works related to concreting of construction structures and facilities. Anchor device includes support-anchor plate that contains casing arranged with conical channel and protrusion with support surface rigidly fixed to the casing, collet element installed in conical bore of support-anchor plate and reinforcement spiral that interacts with support surface of support-anchor plate. Support surface of protrusion is installed in the plane that is located perpendicularly to longitudinal axis of casing conical channel at the distance H equal to 0.6-0.7 of conical channel length from the plane of its largest diameter, at that between casing and support surface of protrusion there is radial surface arranged with radius R equal to 0.2 - 0.35 of conical channel length.
EFFECT: reduction of structure material intensity and labour intensity of its manufacture with simultaneous reduction of stress concentration in concrete.
5 dwg, 2 tbl
SUBSTANCE: tendon comprises additional external reinforcing contour in the form of cylindrical rigid steel or nonmetal cartridge that is installed symmetrically relative to prestressed reinforcement and filled with concrete of at least B 15 grade; with concrete prestressing force in element within the limits from 5 N/sq.mm to 40 N/sq.mm and force of side thrust in cartridge from prestressing within the limits from 0 to 300 N\sq.mm. External cartridge may be arranged with rectangular or square section, and prestressed reinforcement - from coal plastic; at that reinforcement made of steel ropes may be installed in flexible nonmetal tubes with lubricant inside.
EFFECT: increased reliability.
5 cl, 2 dwg, 2 ex
SUBSTANCE: joint anchor bolt for consecutive assembly, installed into the place after reinforced concrete frame gets frozen, contains the first anchor bolt, made standing out from the reinforced concrete frame, the second anchor bolt set eccentrically against the axis of the first anchor bolt, connective part for connection of the first and the second anchor bolts, connective part wherein is made with a protruding part, standing out in the direction opposite to the first anchor bolt. As per the other version of the joint anchor bolt, centre of the connective part and axis of the first anchor bolt are coaxial, profile of the said connective part has a polygonal or round surface, and the second anchor bolt is arranged on the circle centered at the axis of the connective part and the first anchor bolt. As per the third version of the joint anchor bolt, connective part and the second anchor bolt are formed in the T-shaped spot, and the first anchor bolt is arranged on the butt side of the connective part. As per the assembly method of the joint anchor bolt for consecutive assembly, which is installed in place after the reinforced concrete frame gets frozen, at first, joint anchor bolt is prepared. Then cylindrical or multisided core is removed from the covering fittings band, preserving their position, when the fitting meets with the drilled hole for the anchor, whereat said core corresponds to the shape of the specified connective part and surrounds drilled hole. Thereafter holes for the second anchor bolt are drilled and joint anchor bolt is simultaneously secured.
EFFECT: reduced moment of deflection directly affecting the connective part due to the load over the said first anchor bolt.
18 cl, 19 dwg
FIELD: construction industry.
SUBSTANCE: invention refers to construction of pre-stressed reinforced-concrete structures, and namely protective reinforced-concrete coverings of nuclear power stations and can be used for controlling the operation of stressed groups of ropes during operation of nuclear power station. Anchorage for fixing a group of stressed ropes contains support flange 1 installed on reinforced-concrete housing 4 of building structure and inside which there are fixtures 6 for ropes 7, and cap 10 fixed on flange 1 and intended for protection of ends 11 of ropes 7, having liquid-type pressure gage 15 mounted in upper part of wall of cap 10. Internal cavity of cap 10 is divided into upper 16 and lower 17 sections, the boundary 20 between which is located between level 21 of ends 11 of ropes 7 and flange 1. At that, lower section 17 is intended for filling ropes 7 with paraffin, and upper section 16 with ends 11 of ropes 7 serves for being filled with non-compressible liquid, for example, brake fluid.
EFFECT: providing the possibility of controlling both breakage of rope inside pre-stressed building structure, which is characterised with rope end released from channel former to free volume space under the cap, which thus decreases volume under cap, and possibility of controlling loosened rope at sliding in collet, which is characterised by sinking the rope end in channel former and thus increasing volume space under cap.
3 cl, 3 dwg
SUBSTANCE: reinforcement rod fixation device contains a body having a throughhole for the reinforcement rod insertion and embedded parts for installation between the reinforcement rod as inserted into the throughhole and the peripheral inner surface of the body. The peripheral inner surface of the body is shaped as a funnel. Each embedded element has hitching section on its peripheral inner surface coming in a fastening contact with the reinforcement rod and a conic surface formed on at least part of its peripheral outer surface that comes in surfacial contact with the body peripheral inner surface. The hitching section contains a section with female screw thread formed on the peripheral inner surface of the embedded elements designed so that to enable screwing onto the male screw thread section formed on the outer surface of the reinforcement rod. The body contains an insert section having a basically cylindrical shape and a flange section whose outer diametre exceeds that of the insert section. The flange section on the body outer periphery has a couple of flat sections positioned parallel to each other on opposite sides of the body throughhole central axis.
EFFECT: reinforcement rod fixture device can easily be fixed in a position relatively remote from the reinforcement rod end section; it ensures enhanced strength of cohesion to the reinforcement rod.
2 cl, 14 dwg
SUBSTANCE: invention relates to clamp of anchor designed for concrete element lifting and includes attachment mechanism for clamp attachment to lifting anchor and retaining plate intended for creation of load clamp supporting surface to limit load clamp rotation relative lifting anchor.
EFFECT: perfected design.
15 cl, 7 dwg
SUBSTANCE: supporting device is suggested which device creates support for edge lifting anchor designed for concrete parts lifting. The anchor includes head end engaging with load clamp of hoisting unit and body for its embedding into concrete element material. The supporting device is provided with surfaces for supporting edge lifting anchor relative to surface of poured concrete during concrete element spouting.
EFFECT: perfected design.
17 cl, 21 dwg
SUBSTANCE: shear bar of a boundary lifting anchor is proposed for an assembly wall panel. It is made in the form of a bar having a central part engaged with the upper edge of the lifting anchor when installed in the wall panel, and legs inclined downwards from each end of the central part. The lower part of each leg is shaped so that it is strongly engaged with concrete, where it is embedded. Shaping is made in the form of structural elements arranged in longitudinal direction at a certain distance from each other, each having mainly serrated shape. The front edge of each structural element is turned towards the central part so that whenever shear load is applied to the shear lug, legs are attached to concrete mainly with pressing loading applied to concrete in the area between two legs.
EFFECT: increased reliability.
6 cl, 7 dwg
FIELD: machine building.
SUBSTANCE: to protect the end of wire containing set of cables holding individually in system of the anchor securing the device contains skirt passing from face of the anchor securing system and located around the cables set, and multiple cases. The cables have appropriate end parts that project from the face of the anchor securing system, and that are individually inserted in cases, at that the cases are closed from outside of the ends. Connection between the skirt and cases closes the chamber limited by the face of the anchor securing system, skirt and cases. This chamber volume is filled by filler.
EFFECT: improved design.
12 cl, 4 dwg
FIELD: process engineering.
SUBSTANCE: claimed process is intended for protection of the end of rope composed of multiple parallel strands secured by tackle with front side, rear side and channels extending between said front and rear sides. Rope every strand is retained in appropriate groove of said tackle by appropriate retainer. Claimed process comprises fulfilment of protective material injection first step in, at least, several grooves of said tackle. The chamber is configured on at least one side of the tackle to have sections of multiple strands. Then, second step of injection is performed.
EFFECT: higher efficiency of the process.
15 cl, 5 dwg