A wall structure having a horizontal base stud, which wall structure has an upper wall panel, and a horizontal base stud, wherein the base stud has openings to allow for liquids to escape in the event of a plumbing leak, and additional openings to allow for air flow from the exterior to the interior of the wall structure.

A wall structure having a horizontal base stud, which wall structure has an upper wall panel, and a horizontal base stud, wherein the base stud has openings to allow for liquids to escape in the event of a plumbing leak, and additional openings to allow for air flow from the exterior to the interior of the wall structure.

A resilient channel for joining a board to a support such as a stud, joist or truss in building construction, has a mounting flange and a face flange joined by a web. The mounting flange has a first foot and a second foot disposed at ends of the flange, the first foot bent back toward the support to be disposed between the mounting flange and the support, the second foot bent toward the support, such that the first foot and second foot are disposed to bridge the mounting flange over the support to define a gap between at least a portion of the mounting flange and the support. The face flange has a first bend and a second bend disposed at ends of the flange, and corrugations between the first bend and the second bend.

A resilient channel for joining a board to a support such as a stud, joist or truss in building construction, has a mounting flange and a face flange joined by a web. The mounting flange has a first foot and a second foot disposed at ends of the flange, the first foot bent back toward the support to be disposed between the mounting flange and the support, the second foot bent toward the support, such that the first foot and second foot are disposed to bridge the mounting flange over the support to define a gap between at least a portion of the mounting flange and the support. The face flange has a first bend and a second bend disposed at ends of the flange, and corrugations between the first bend and the second bend.

A structural steel member connecting assembly includes a first connecting member and a second connecting member. The first connecting member is pivotally connected to a positioning portion of a first structural steel member and therefore can be swung. The second connecting member is pivotally connected to the first connecting member such that the two connecting members are rotatable with respect to each other. The second connecting member has a fixing portion coupled with a second structural steel member such that the longitudinal directions of the two structural steel members intersect. With the second connecting member rotatable with respect to the first connecting member, the installation angles of the two structural steel members can be easily changed in order to make a stable engineering structure. The structural steel member connecting assembly features convenience of, and flexibility in, use and has extensive applications.

Described is a method and apparatus for constructing light-weight, modular structures using special openC beams as a top and a bottom frame. Each openC beam comprises a vertical web member, a horizontal top flange extending perpendicularly in a first direction from the vertical web member, a horizontal bottom flange extending perpendicularly in the first direction and substantially parallel with the horizontal top flange and a upper vertical tab extending substantially perpendicularly from a distal edge of the horizontal top flange away from the horizontal bottom flange. Vertical posts are installed in one or more cutouts in the horizontal top flange of each openC beam and a planar surface of each of the vertical posts rests against the horizontal top flange for added support.

Described is a method and apparatus for constructing light-weight, modular structures using special openC beams as a top and a bottom frame. Each openC beam comprises a vertical web member, a horizontal top flange extending perpendicularly in a first direction from the vertical web member, a horizontal bottom flange extending perpendicularly in the first direction and substantially parallel with the horizontal top flange and a upper vertical tab extending substantially perpendicularly from a distal edge of the horizontal top flange away from the horizontal bottom flange. Vertical posts are installed in one or more cutouts in the horizontal top flange of each openC beam and a planar surface of each of the vertical posts rests against the horizontal top flange for added support.

A tubular structural profile and construction system, produced by cutting and folding a semi-rigid and foldable sheet, having four orthogonal layers joined at fold lines and two internal diagonal layers joining two opposing fold lines. The sheet has six rectangular sections. The cutting lines are positioned for at least one tongue, which coincides with at least one slot located on an opposing fold lines, such that, during the folding, the profile is closed of the coming together of fold lines and both internal diagonal layers, and by means of the insertion of at least one tongue on its corresponding slot, and wherein, in addition, the profile of the formed system can have at least one break in the second external layers and in the two internal diagonal layers, which permit the creation of an engaging area for transverse structural profiles.

A beam for formwork systems, with a transverse cross-section that is symmetrical with respect to an axis of symmetry and having, in succession:

a first portion with two C-shaped profiles, which are arranged mirror-symmetrically with respect to the axis of symmetry, with mutually opposite cores and cavities directed outward, connected by a plate for connection between two mirror-symmetrical wings thereof,

a connecting element, which extends along the direction of the axis of symmetry, between the plate for connection and a base,

a second portion with two protrusions which extend from the base and are provided with transverse end elements.

Described is a method and apparatus for constructing light-weight, modular structures using special openC beams as a top and a bottom frame. Each openC beam comprises a vertical web member, a horizontal top flange extending perpendicularly in a first direction from the vertical web member, a horizontal bottom flange extending perpendicularly in the first direction and substantially parallel with the horizontal top flange and a upper vertical tab extending substantially perpendicularly from a distal edge of the horizontal top flange away from the horizontal bottom flange. Vertical posts are installed in one or more cutouts in the horizontal top flange of each openC beam and a planar surface of each of the vertical posts rests against the horizontal top flange for added support.