The invention relates to a system for joining two components or for reinforcing a component, comprising a first and a second threaded sleeve which each comprise the following: an outer thread, with the aid of which the threaded sleeve can be screwed into the respective component and which is suitable to form a composite with the respective component, and a power drive, by which a torque for screwing the threaded sleeve into the respective component can be transmitted to the threaded sleeve. The system further comprises an elongate clamping element which is suitable to be guided through the second threaded sleeve and introduced into or guided through the first threaded sleeve, and which is suitable to axially clamp the first and the second threaded sleeve in such a manner that the first and the second threaded sleeve form opposed composite stresses in the respective component.

An anchoring device configured for anchoring tendons for structural reinforcing a structure. The anchoring device includes fastening means configured for fastening the anchoring device to the structure, and a tendon pressure contact surface configured for being pressed against a surface of the tendon to be anchored. The tendon defines a reference plane, and anchoring device defines first and second distal end spaced apart from each other in a longitudinal direction. The anchoring device further includes a proximal portion located between the first and second distal ends. The anchoring device defines a core plane extending parallel to the reference plane. The tendon pressure contact surface extends in the longitudinal direction of the anchoring device from the first distal end to the proximal portion. The tendon pressure contact surface converges in the longitudinal direction of the anchoring device from the proximal portion towards the first distal end in the direction towards the core plane, such that the distance between the tendon pressure contact surface and the core plane varies along the longitudinal direction of the anchoring device. The distance increases from the first distal end towards the proximal portion of the anchoring device.

Wall reinforcement systems and methods of reinforcing wall structures are provided. The systems and method include at least one carbon fiber strap (CFS) adhered to a wall structure, in which the CFS and an anchoring pin are configured to form a composite anchor that is secured within a hole located at or proximate a bottom end of the wall and extends into a foundation portion.

Disclosed is an automatic leveling CFRP plate pre-stressing and tensioning device for a curved surface structure, including a fixed end mechanism and a tension end mechanism, one end of the CFRP plate is connected to the fixed end mechanism and the other end is connected to the tension end mechanism, and the fixed end mechanism cooperating with the tension end mechanism to reinforce a curved surface. The fixed end mechanism includes a fixed end base plate, a fixture, a fixed end CFRP plate clamping plate, and a second high-strength bolt. The fixed end base plate is provided with a slide groove, the fixture is hinged within the slide groove by the second high-strength bolt; the fixture is provided with a fixture groove, and a size of the fixture groove decreases from one end of the fixture near the tension end mechanism to the other end of the fixture.

A fiber-reinforced polymer anchoring system for a structural element includes a fiber-reinforced polymer member configured to provide external tensile reinforcement to the structural element; an anchoring device coupled with the fiber-reinforced polymer member and the structural element; wherein the anchoring device includes a metallic layer, a fiber-reinforced polymer layer, and a fastener for securing the anchoring device on the fiber-reinforced polymer member and the structural element.

The present disclosure relates to an arrangement having a supporting structure having a surface containing (e.g., consisting of) one or more faces, wherein a bore runs from at least one face into an inner region of the supporting structure, and this bore is filled with an adhesive and with a portion of a fibre bundle projecting beyond said face, wherein, on the at least one face, from which the bore runs into an inner region of the supporting structure, the supporting structure is provided with at least one groove which, starting from the bore, extends in at least one direction on the surface, and the projecting part of the fibre bundle is located, at least in part, in the at least one groove and is fastened therein by way of the adhesive.

The clamp anchorage with locking nut and bolt covers is similar to a conventional clamp anchorage, but with additional first and second locking plates. A plurality of first and second covers each have a head portion and a shaft. Each of the shafts has a cavity defined therein. The shafts of the plurality of first covers are respectively received within a plurality of first openings in the first locking plate such that the cavity formed in each of the shafts of the plurality of first covers receives a respective bolt head. The shafts of the plurality of second covers are respectively received within a plurality of second openings in the second locking plate such that the cavity formed in each of the shafts of the plurality of second covers receives a respective nut. The first and second covers may be made of a non-corrosive material.

A fiber reinforced polymer (FRP) anchor configured for field testing includes a precured end portion at a first end of the FRP anchor, a plurality of rovings extending from the precured end portion to free ends at a second end of the FRP anchor wherein the rovings being splayed in a first plane, and a pair of plates disposed at opposite sides of the rovings relative to the first plane. The plates are cured to the splayed rovings.

A reinforcement system includes a structural member with a fiber reinforcement strip mounted in two positions and adhered to the member. An end of the fiber reinforcement strip is secured to a lower portion of the structure with a bracket. The opposite end of the fiber strip is mounted with an upper bracket to a sill pate of the structure. The upper bracket includes an upper bridge portion and a lower bridge portion with a slot between the bridge portions. With the upper bracket mounted to a sill plate, the fiber strip is wrapped behind and around the upper bridge portion of the upper bracket. The fiber strip is threaded through the slot between the bridge portions and behind the lower bridge portion. The fiber strip through the upper bracket is pulled tightly through the slot, and the upper bracket is secured to the sill plate of the structural member.