Composite joist floor system

Patent metadata

Field	Value
Publication number	US-2015184379-A1
Application number	US-201414487403-A
Country	US
Kind code	A1
Filing date	Sep 16, 2014
Priority date	Jan 24, 2008
Publication date	Jul 2, 2015
Grant date	—

Abstract

Embodiments of the present invention provide systems for connecting a flooring system to a vertical wall. In one embodiment the building structure includes a floor comprising a cementitious slab and a wall supporting at least a portion of the cementitious slab. A plurality of stand-off fasteners extend from the top of the wall into the cementitious slab and are configured to transfer forces between the cementitious slab and the wall. The stand-off fasteners comprise a lower portion and an upper stand-off portion. The lower portion is operatively coupled to the top of the wall, and the upper stand-off portion extends above the top of the wall and is encapsulated within the cementitious slab. In some embodiments, at least a portion of the lower portion is heat treated to a higher degree of hardness relative to the remainder of the stand-off screw.

First claim

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8 . A building structure comprising:
a first supporting structure; a second supporting structure; a plurality of floor joists supported between and operatively coupled to the first supporting structure and the second supporting structure, wherein each of the plurality of floor joists comprise:
an upper chord;
a lower chord;
a joist shoe on at least a first end of the floor joist, and wherein the joist shoe is located between the upper chord and the lower chord and extends over and is operatively coupled to the first supporting structure beyond the upper chord of the floor joist; and
a web operatively coupled to at least the upper chord and the lower chord;
a plurality of joist shoe fasteners for operatively coupling the joist shoe of the plurality of floor joists to the first supporting structure, wherein the joist shoe extends beyond the upper chord of the floor joist to provide sufficient room for utilizing a tool to operatively couple the joist shoe of the plurality of floor joists to the first supporting structure; decking operatively coupled to the plurality of floor joists; a closure extending between the first supporting structure and the decking forming a channel; and a cementitious slab formed within the channel and above the decking that encapsulates at least a portion of the upper chord and at least a portion of the joist shoe of the plurality of floor joists, and at least a portion of the plurality of joist shoe fasteners.

9 . The building structure of claim 8 , further comprising:
a plurality of decking fasteners, and wherein the decking is operatively coupled to the plurality of floor joists through the plurality of decking fasteners.

10 . The building structure of claim 9 , wherein the plurality of decking fasteners comprise self-drilling stand-off screws.

11 . The building structure of claim 9 , wherein the plurality of decking fasteners comprise welded shear stud fasteners.

12 . The building structure of claim 8 , wherein the plurality of joist shoe fasteners comprise self-drilling stand-off screws.

13 . The building structure of claim 8 , wherein the plurality of joist shoe fasteners comprise welded shear stud fasteners.

14 . The building structure of claim 8 , further comprising:
at least one rebar located within the channel below or adjacent the upper chord; wherein the joist shoe is spaced apart from the upper chord and the lower chord, and wherein the cementitious slab formed within the channel further encapsulates the rebar.

15 . The building structure of claim 8 , further comprising:
at least one rebar located within the channel below or adjacent the upper chord; wherein the joist shoe coupled directly to the upper chord and spaced apart from the lower chord, and wherein the cementitious slab formed within the channel further encapsulates the rebar.

16 . The building structure of claim 8 , wherein the upper chord, the lower chord and the joist shoe of the plurality of floor joists are operatively coupled through the web, or through an end diagonal that is separate from the web.

17 . The building structure of claim 8 , wherein a portion of the closure is assembled either above the decking or below the decking.

18 . A building structure comprising:
a first supporting structure; a second supporting structure; a plurality of floor joists supported between and operatively coupled to the first supporting structure and the second supporting structure, wherein each of the plurality of floor joists comprise:
an upper chord;
a lower chord;
a joist shoe on at least a first end of the floor joist, and wherein the joist shoe is located between the upper chord and the lower chord and is operatively coupled to at least the first supporting structure; and
a web operatively coupled to at least the upper chord and the lower chord;
a plurality of joist shoe fasteners for operatively coupling the joist shoe to the first supporting structure decking operatively coupled to the plurality of floor joists; a closure extending between the first supporting structure and the decking forming a channel; rebar located within the channel below or adjacent the upper chord; and a cementitious slab formed within the channel and above the decking that encapsulates at least a portion of the upper chord and at least a portion of the joist shoe of the plurality of floor joists, and at least a portion of the plurality of joist shoe fasteners.

19 . The building structure of claim 18 , wherein the joist shoe of the plurality of floor joists is spaced apart from the upper chord and the lower chord.

20 . The building structure of claim 18 , wherein the joist shoe of the plurality of floor joists extends beyond the upper chord of the floor joist to provide sufficient room for utilizing a tool to operatively couple the joist shoe of the plurality of floor joists to the first supporting structure.

21 . The building structure of claim 18 , further comprising:
a plurality of decking fasteners, and wherein the decking is operatively coupled to the plurality of floor joists through the plurality of decking fasteners.

22 . The building structure of claim 21 , wherein the plurality of decking fasteners comprise self-drilling stand-off screws.

23 . The building structure of claim 21 , wherein the plurality of decking fasteners comprise welded shear stud fasteners.

24 . The building structure of claim 18 , wherein the plurality of joist shoe fasteners comprise self-drilling stand-off screws.

25 . The building structure of claim 18 , wherein the plurality of joist shoe fasteners comprise welded shear stud fasteners.

26 . The building structure of claim 18 , wherein the upper chord, the lower chord, and the joist shoe of the plurality of floor joists are operatively coupled through the web, or through an end diagonal that is separate from the web.

27 . The building structure of claim 18 , wherein a portion of the closure is assembled either above the decking or below the decking.

28 . A method for forming a building structure, the method comprising:
assembling a plurality of floor joists to a first supporting structure and a second supporting structure, wherein each of the plurality of floor joists comprise:
an upper chord;
a lower chord;
a joist shoe on at least a first end of the floor joist, and wherein the joist shoe is located between the upper chord and the lower chord and extends over and is operatively coupled to the first supporting structure beyond the upper chord of the floor joist;
a web operatively coupled to at least the upper chord and the lower chord; and
wherein assembling comprises using a plurality of joist shoe fasteners for operatively coupling the joist shoe of the plurality of floor joists to the first supporting structure, wherein the joist shoe extends beyond the upper chord of the floor joist to provide sufficient room for utilizing a tool to operatively couple the joist shoe of the plurality of floor joists to the first supporting structure;
assembling decking to the plurality of floor joists; assembling a closure between the first supporting structure and the decking forming a channel; and forming a cementitious slab within the channel and above the decking that e

Assignees

• Nucor Corp

Inventors

• Studebaker Glenn Wayne
• Samuelson David Lee
• Dayton Lionel Edward

Classifications

• E04B2005/322

  with permanent forms for the floor edges · CPC title

• E04B1/4157

  Longitudinally-externally threaded elements extending from the concrete or masonry, e.g. anchoring bolt with embedded head · CPC title

• E04C3/08

  with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders (E04C3/10, E04C3/11 take precedence) · CPC title

• E04B1/165 Primary

  with elongated load-supporting parts, cast in situ (E04B1/161, E04B1/163 and E04B1/164 take precedence) · CPC title

• E04B5/40 Primary

  with metal form-slabs · CPC title