A connection is provided where angled fasteners connect a beam and a wooden panel to make a composite panel.

A method of manufacturing a pre-stressed beam or panel and the resulting beam or panel are described. The method includes providing a timber-based component (1); providing a pre-stressing member (9) arranged along the timber-based component; applying a tensile force to the pre-stressing member (9); providing concrete anchors (11a, 11b) at locations that are spaced apart along the timber-based component (1); coupling the pre-stressing member (9) to the concrete anchors (11a, 11b); and releasing the tensile force on the pre-stressing member (9) to transfer a compressive force to the timber-based component (1) through the concrete anchors (11a, 11b) to form a pre-stressed beam or panel.

A method of manufacturing a pre-stressed beam or panel and the resulting beam or panel are described. The method includes providing a timber-based component (1); providing a pre-stressing member (9) arranged along the timber-based component; applying a tensile force to the pre-stressing member (9); providing concrete anchors (11a, 11b) at locations that are spaced apart along the timber-based component (1); coupling the pre-stressing member (9) to the concrete anchors (11a, 11b); and releasing the tensile force on the pre-stressing member (9) to transfer a compressive force to the timber-based component (1) through the concrete anchors (11a, 11b) to form a pre-stressed beam or panel.

This method is suitable for the strengthening of concrete or timber structures (1, 4) by applying prestressed Carbon FRP or Glass FRP lamella (8). Firstly, at least one groove (22) is cut into the concrete or timber structure (1, 4) along the direction in which the concrete or timber structure (1, 4) is to be strengthened. The grooves (22) are filled with epoxy resin (9) and a layer of epoxy resin (9) is put onto the entire section to be equipped with the CRFP or GFRP lamella (8). The lamella (8) will be prestressed and anchored at both ends. U-shaped brackets (24) are then being put over the two end sections of the CFRP or GFRP lamella (8) by inserting and submerging its both U-legs (27) into holes (26) filled with resin as well. These holding brackets (24) will then tightly press onto the CFRP or GFRP lamella (8) to prevent cracking or fracture of the concrete or timber and bending away of the extremities of the CFRP or GFRP lamella.

A trussed joist (such as shown in FIGS. 1, 2, and 3) is provided which includes an upper chord and a lower chord connected to each other by descending and ascending diagonals making triangular or trapezoid openings across the joist. The joist is sup-ported at lower chord not matching the truss node point or supported at the upper chord whereby the joist is unworkable. At least one reinforcing is fixed at the faces of the chords by dowel fasteners. The reinforcing element overlaps at least one truss node point.

A trussed joist (such as shown in FIGS. 1, 2, and 3) is provided which includes an upper chord and a lower chord connected to each other by descending and ascending diagonals making triangular or trapezoid openings across the joist. The joist is sup-ported at lower chord not matching the truss node point or supported at the upper chord whereby the joist is unworkable. At least one reinforcing is fixed at the faces of the chords by dowel fasteners. The reinforcing element overlaps at least one truss node point.

A metal restraint strap for suppressing a displacement between two parallel disposed structural bodies away from each other includes an elongated metal base member; metal bolt members extending outward in a longitudinal direction of the base member from opposite longitudinal ends of the base member, and each having an external thread at least on an outer periphery of an distal end portion of the bolt member; and fasteners adapted to be screwed onto the external threads of the bolt members.

A metal restraint strap for suppressing a displacement between two parallel disposed structural bodies away from each other includes an elongated metal base member; metal bolt members extending outward in a longitudinal direction of the base member from opposite longitudinal ends of the base member, and each having an external thread at least on an outer periphery of an distal end portion of the bolt member; and fasteners adapted to be screwed onto the external threads of the bolt members.

A system and method of retroactively reinforcing an exterior wall of a building. An anchoring assembly is mounted into the void space between a first joist and a second joist inside the building. The anchoring assembly has a first element that mounts to the first joist and a second element that mounts to the second joist. The anchoring assembly has an adjustable length. In this manner, the anchoring assembly can be adjusted to properly fit the void space between the first joist and the second joist. An anchor plate is provided outside the building in the area of the wall that needs to be reinforced. A tensioning tether is provided that extends through the exterior wall and mechanically joins the anchoring assembly to the anchor plate. The tensioning tether can be selectively tightened, therein biasing the anchor plate outside the building toward the anchoring assembly inside the building.

A system and method of retroactively reinforcing an exterior wall of a building. An anchoring assembly is mounted into the void space between a first joist and a second joist inside the building. The anchoring assembly has a first element that mounts to the first joist and a second element that mounts to the second joist. The anchoring assembly has an adjustable length. In this manner, the anchoring assembly can be adjusted to properly fit the void space between the first joist and the second joist. An anchor plate is provided outside the building in the area of the wall that needs to be reinforced. A tensioning tether is provided that extends through the exterior wall and mechanically joins the anchoring assembly to the anchor plate. The tensioning tether can be selectively tightened, therein biasing the anchor plate outside the building toward the anchoring assembly inside the building.