Abstract: A ribbed metal floor deck for the erection of steel/concrete composite slabs has a cross-section with polygonal ribs. The polygonal ribs exhibit arrises. The ribbed metal floor deck includes non-stripping localized deformations, formed in the arrises of the polygonal ribs. The non-stripping localized deformations have a cross-section of a reentrant shape making the deck non-demolding when embedded in the concrete of the composite slab.

Abstract: A concrete-filled steel bearing earthquake resistant wall which has combined resistance to shearing forces exerted in the surface plane thereof has connecting members (1), a pair of surface steel plates (2 and 2') arranged in parallel spaced relationship to each other and secured by the connecting members (1) so that the space between these surface steel plates is filled with the wall unit concrete (7), and wall unit periphery binding steel reinforcements (8) constructed from inverted U-shaped steel bars or similar material and arranged along the peripheral part of the wall unit at predetermined intervals so as to be embedded in the concrete (7). Slippage preventing members (6) are arranged in a staggered arrangement on the aforementioned surface steel plates (2 and 2').

Abstract: A deck plate includes a number of trusses arranged in parallel and rigidly secured to a base member, each of the trusses includes one upper reinforcing bar and two lower reinforcing bars arranged to provide a triangle transversely, and two corrugated reinforcing bars each having a series longitudinal triangle waves and adapted to be rigidly secured to the upper reinforcing bar and to the corresponding lower reinforcing bar respectively, so that the truss has a triangle shape transversely and can stand independently.

Abstract: A building system utilizing outwardly projecting legs on a horizontally or vertically extending purlin to connect with standard stirrups on conventional columns in a rebar assembly. The stirrups are force-fit within the legs of the purlins extending outwardly from the surface of adjoining wall sections such that the rebar and the wall sections are connected in a uniframe construction without welding and a metal form can be fitted around the connection to form a channel into which concrete may be poured to form a unitary structure.

Abstract: An element of insulating material, particularly for heat and/or sound insulation of buildings and for mounting between supports, has a body including a plurality of supports, has a body including a plurality of separate parts which are formed by at least one continuous beveled cut and shaped so that they are displaceable relative to one another during mounting and can be clamped between supporting elements.

Abstract: A composite floor structure comprising a floor slab of concrete or other compression resistant material; and at least one reinforced beam under the floor slab. The beam comprises permanent shuttering including an open-mouthed, upwardly facing channel formation of steel or other tension resistant material; and a plurality of transverse members spaced apart along the length of the channel formation and extending transversely to the channel formation across substantially the entire width of the mouth of the channel formation. Each transverse member is fast with the channel formation in the region of its mouth on opposite sides of the mouth and at least part of at least certain of the transverse members extend upwardly from the region of the mouth of the channel formation into the overlying floor slab. Concrete or other compression resistant material is located in the channel formation and is formed integrally with the compression resistant material of the floor slab.

Abstract: A building panel is described which can be used for either walls or floors. It comprises a thin shell unit of reinforced, monolithic cementitious material having a large, planar outer face and an inner face interconnected by parallel end edges and parallel side edges. A plurality of stud members are partially embedded in the inner face of the cementitious shell, these stud members being parallel to each other, laterally spaced from each other and being fabricated of about 15 to 25 gauge galvanized steel sheet. This steel sheet material is shaped to provide a web portion with one longitudinal edge of the web being shaped to lock the stud within the concrete shell and the longitudinal edge of the web remote from the concrete shell comprising an L-shaped flange defining the outer surface of the stud member to which a finished panel may be attached. Channel-shaped metal beam members connect the ends of the studs.

Abstract: A framework cassette of thin sheet intended to be joined to adjacent cassettes so as to constitute a lost form when casting concrete framework and co-operating with the concrete in the finished framework as regards the absorption of forces. It consists of a rectangular bottom (11) along the two longitudinal sides of which edge beam sections are bent up. These edge beam sections consist in part of an upper, horizontal flange (5), a vertical web (3) with bulges (8) and furthest down a sleeve (6). On the sleeves (6) and between them is located a top section (9) which is also secured to them. The space between the top section (9) and bottom (11) of the cassette can be filled with insulation or used for installation material (14). The concrete is cast over the top section (9) and between the webs (3).

Abstract: A compound girder of an on-site assembly type is assembled to include components which rigidly interconnect two or more prefabricated ceiling panels (3a, 3b) in a bending stiff manner. The compound girder includes for each ceiling panel (3a, 3b) at least one web section (1a, 1b) and an upper chord section (2a, 2b). The girder further includes a continuous length lower chord (4). The lower chord (4) takes up the tension and shearing loads. The individual web sections (1a, 1b) are secured to the lower chord (4) by screw connections which prevent a sliding displacement between the connected elements relative to each other.

Abstract: A building structure including a beam of steel or rod reinforced concrete which is sheathed in a U-shaped cross section steel shell, a concrete column which is encased in a steel tube, diagonal bracings and connecting members thereof. The topside of the U-shaped steel shell is open to allow concrete to be filled therethrough. Steel rods are placed in the shell and a steel panel connecting member secures the opposed sidewalls of the shell. Steel bars extend from a floor slab into the beam shell through the aforesaid open topside, thereby rendering the beam integral with the slab. Frame-like steel members for confining reinforcing bars and/or shear connectors are disposed in the inside of the beam shell. A steel sleeve is also provided in the beam shell for defining a space for disposition of equipment. In addition, an opening is provided in the bottom wall of the beam shell so as to allow steel rods to extend from the wall into the beam shell, thereby rendering the beam integral with the wall.

Abstract: A building structure including a beam of steel or rod reinforced concrete which is sheathed in a U-shaped cross section steel shell, a concrete column which is encased in a steel tube, diagonal bracings and connecting members thereof. The topside of the U-shaped steel shell is open to allow concrete to be filled therethrough. Steel rods are placed in the shell and a steel panel connecting member secures the opposed sidewalls of the shell. Steel bars extend from a floor slab into the beam shell through the aforesaid open topside, thereby rendering the beam integral with the slab. Frame-like steel members for confining reinforcing bars and/or shear connectors are disposed in the inside of the beam shell. A steel sleeve is also provided in the beam shell for defining a space for disposition of equipment. In addition, an opening is provided in the bottom wall of the beam shell so as to allow steel rods to extend from the wall into the beam shell, thereby rendering the beam integral with the wall.

Abstract: A steel joist formwork and a composite steel and concrete floor structure provided with a top chord, a bottom chord and a web joining the top and bottom chords with the top chord being serpentine shaped like an S or Z and including top and bottom, generally horizontal portions and an intermediate portion integrally connecting opposite edges of the top and bottom portions with the top and intermediate portions substantially being adapted to be embedded in the concrete floor to cause the floor and steel joists to act structurally as a composite beam. Either the web or a leg depends vertically from the free end of the bottom portion of the top chord, and the web joining the top and bottom chords is substantially solid or is, an open web formed of a zigzag bar member. There is also disclosed a building system and erecting method utilizing steel joists spaced apart by spanner bars which also support rigid panels which act as formwork for the pouring of concrete.