# US 2012/0073213 A1 · Balcony structure

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- Number: US 2012/0073213 A1
- Document ID: US20120073213A1
- Status: Published application
- Kind: A1
- Application number: 13/313,857
- Filed: 2011-12-07
- Published: 2012-03-29
- Earliest claimed: 2008-01-24
- Assignees: Nucor Corporation
- Inventors: Glenn Wayne Studebaker; David Lee Samuelson; Lionel Edward Dayton
- Web page: https://patentgrep.com/patent/US20120073213A1

## CPC

- E04B 5/40: with metal form-slabs
- E04B 1/003: {Balconies; Decks}
- F16B 5/0275: {the screw-threaded element having at least two axially separated threaded portions (F16B5/0283 takes precedence)}
- F16B 25/0031: {the screw being designed to be screwed into different materials, e.g. a layered structure or through metallic and wooden parts}
- F16B 25/0094: {the screw being assembled or manufactured from several components, e.g. a tip out of a first material welded to shaft of a second material}
- F16B 25/103: {by means of a drilling screw-point, i.e. with a cutting and material removing action}
- F16B 33/06: Surface treatment of parts furnished with screw-thread, e.g. for preventing seizure {or fretting (corrosion preventing means F16B33/008; settable coatings for locking threaded members F16B39/225; deformable coatings for locking threaded members F16B39/34)}
- F16B 35/048: {Specially-shaped necks (F16B35/06 takes precedence)}
- E04B: GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS (border constructions of opening in walls, floors or ceilings E06B1/00; {electromagnetic shielding H05K9/0001})
- F16B: DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING (couplings for transmitting rotation F16D)

## Abstract

Systems are provided for use in balcony structures. The system includes a joist comprising an upper chord and a lower chord separated by a web. One end of the joist is supported by a supporting member and a cantilevered balcony extends generally perpendicularly from the supporting member. The cantilevered balcony comprises a cementitious balcony slab extending from a cementitious floor slab. The cementitious floor slab includes a backspan region extending from the top of the supporting member opposite the cementitious balcony slab. A portion of the joist in the backspan region comprises a decking supporting member coupled to the web. The joist in the backspan region supports decking using the decking supporting member; however, the joist beyond the backspan region supports decking above the upper chord. In this way, the cementitious floor slab in the backspan region is thicker than the cementitious floor slab beyond the backspan region.

## Claims

### Claim 1

A floor system configured to provide for a balcony, the floor system comprising:
a supporting member;
a joist comprising an upper chord and a lower chord separated by a web, wherein the joist is positioned generally parallel to the supporting member;
decking supported by the upper chord of the joist;
a cementitious floor slab supported by the decking; and
a cantilevered balcony extending generally perpendicularly from the top of the supporting member, the cantilevered balcony comprising a cementitious balcony slab extending from the cementitious floor slab, wherein the cementitious floor slab includes a backspan region extending from the top of the supporting member opposite the cementitious balcony slab and supported by a backspan portion of the joist, and wherein the backspan portion of the joist has an upper chord that is lower than the upper chord in the remainder of the joist such that the cementitious floor slab in the backspan region is generally thicker than the cementitious floor slab supported by the remainder of the joist.

### Claim 2 (depends on 1)

The floor system of claim 1, wherein the distance between the upper chord and the lower chord in the backspan region of the joist is less than the distance between the upper chord and the lower chord in the remainder of the joist.

### Claim 3 (depends on 1)

The floor system of claim 1, wherein the upper chord and the lower chord of the joist each comprise a pair of angles, and wherein the angles used in the upper chord in the backspan region are separate from the angles used in the upper chord of the remainder of the joist.

### Claim 4 (depends on 1)

The floor system of claim 1, wherein the decking comprises corrugated steel decking, and wherein the corrugations of the corrugated steel decking run generally perpendicular to the joist.

### Claim 5 (depends on 1)

The floor system of claim 1, wherein the supporting member comprises a metal stud, a wood stud, a masonry wall, a concrete wall, a metal beam, or a metal truss that extends generally parallel to the joist.

### Claim 6 (depends on 1)

The floor system of claim 1, further comprising:
a z-shaped closure running perpendicular to the joist at the edge of the backspan region, the z-shaped closure for forming the cementitious floor slab as it transitions from the thicker backspan region to a standard cementitious floor slab thickness.

### Claim 7 (depends on 1)

The floor system of claim 1, further comprising:
stand-off fasteners for coupling the decking to the joist's upper chord inside and outside the backspan region, wherein a significant portion of each stand-off fastener extends above the decking into the cementitious floor slab.