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.

The invention relates to a method for the cambering of a wooden element, comprising the steps of: cutting to form at least one incision in a surface of the wooden element; inserting an expansive material into the at least one incision of the wooden element; letting the expansive material expand in the at least one incision so that a cambering of the wooden element is achieved.

The invention relates to a method for the cambering of a wooden element, comprising the steps of: cutting to form at least one incision in a surface of the wooden element; inserting an expansive material into the at least one incision of the wooden element; letting the expansive material expand in the at least one incision so that a cambering of the wooden element is achieved.

A steel-structure building envelope includes a building body, floor slabs, and external walls. The building body has H beams and decks. The decks are assembled onto the H beams. The floor slabs have RC slabs laid on the decks. The external walls each have an RC curb formed on the RC slab by means of casting, two steel C profiles, one of which is installed on the RC curb with an opening thereof facing upward, and the other of which is mounted on the deck with an opening thereof facing downward; and an outer wall panel and an inner wall panel, attached to opposite sides of the RC curb and the two steel C profiles, respectively, so that a hollow space is formed between the outer wall panel and the inner wall panel. Thereby the external walls have a two-layer structure and are affixed directly to the floor slabs.

The present invention relates to a composite floor, typically a wood/concrete composite floor. The composite floor comprises a support structure being adapted to be attached to a concrete layer. The support structure comprises a top portion being made of at least one support panel comprising at least one opening through which the concrete layer may flow into the inner portion of the support structure once the top portion of the support structure is being disposed on the top of the concrete layer. The upward flow of the concrete creates at least one anchor point, which, once being harden in the inner portion of the support structure, improves the adhesion between the support panels and the concrete and ensures better mechanical rigidity and resistance of the assembly made of the panels and the concrete.

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.

A wood-concrete composite slab having a planar wood element, by means of which spans with little dependence upon the relative inherent weight of the slab are achieved. The slab layer construction includes a wood layer, an insulating layer, and a concrete layer. In one embodiment, the layer construction is interrupted by at least one bearing means, in that this bearing means traverses at least the concrete layer and the insulating layer and extends downward at least as far as the wood layer. In a different embodiment, for a high level of soundproofing, the slab comprises in its insulating layer two different-density insulating materials, wherein the denser insulating material rests directly on the wood layer, acting as a vibration damping means. In a further embodiment, the wooden panels of the wood-concrete composite slab that form the planar wood element are tensioned against one another in order to convey tensile forces therethrough.

A steel-structure building envelope includes a building body, floor slabs, and external walls. The building body has H beams and decks. The decks are assembled onto the H beams. The floor slabs have RC slabs laid on the decks. The external walls each have an RC curb formed on the RC slab by means of casting, two steel C profiles, one of which is installed on the RC curb with an opening thereof facing upward, and the other of which is mounted on the deck with an opening thereof facing downward; and an outer wall panel and an inner wall panel, attached to opposite sides of the RC curb and the two steel C profiles, respectively, so that a hollow space is formed between the outer wall panel and the inner wall panel. Thereby the external walls have a two-layer structure and are affixed directly to the floor slabs.

A method is for horizontal leveling coupling between a concrete foundation and wooden vertical beams. The method includes (a) perforating n anchor holes in a predetermined position of the concrete foundation (where n is a natural number that is greater than or equal to 2); (b) installing a post-installed anchor in each of the n anchor holes; (c) coupling each of nuts to each thread-shaped anchor head located on an upper portion of the post-installed anchor, wherein the nuts are coupled so that upper surfaces of the nuts coincide with a reference surface X1; (d) preparing wooden vertical beams having lower surfaces in which insertion holes into which the nuts are inserted, are formed; (e) installing the wooden vertical beams by moving the wooden vertical beams in a horizontal direction so that the nuts are inserted into the insertion holes formed in the lower surfaces of the wooden vertical beams, wherein a movement direction of each of the wooden vertical beams is one of two or more movement directions; and (f) filling a space between lower surfaces of the concrete foundation and the nuts with a predetermined member.