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US 7,017,314 B2Granted
Apparatus and method for composite concrete and steel floor construction
OwnerMalcolm J. Paceinventor
Life of this patent
Estimating the term…
Abstract
A composite floor system comprises a system of joists, where each of the joists has a top chord, a bottom chord and a web, including tension and compression members in the space between the top chord and the bottom chord and secured to the top and bottom chords, and a top chord that is formed substantially in the shape of a cross.
Claims13
A composite steel and concrete floor construction comprising:
- a concrete slab;
- a plurality of individual laterally placed, parallel disposed, and supported joists, wherein each of said plurality of joists comprises an upper chord and a lower chord, said upper chord of at least one of said plurality of joists comprising a substantially cross-shaped cross section about a longitudinal axis;
- an intermediate web member joining said upper chord and said lower chord, said intermediate web member comprising a plurality of tension and compression members triangulating a space between said upper chord and said lower chord;
- wherein each of said upper chords of each of said plurality of joists comprises:
- a first angle, said first angle comprising a first horizontal leg portion and an upward vertical leg portion;
- and
- a second angle, said second angle comprising a second horizontal leg portion and a downward vertical leg portion;
- and
- wherein at least a portion of each of said upward vertical leg portions of each of said first angles of each of said plurality of joists is embedded in said concrete slab;
- and
- a reinforcing mesh at least partially supported upon said upper chords of said plurality of joists and hanging generally in a catenary shape therebetween and being fully embedded in said slab.
8 more elements
A method comprising the steps of:
- supporting a plurality of joists between a plurality of support structures, each of said plurality of joists comprising:
- an upper chord, said upper chord comprising a substantially cross-shaped cross section about a longitudinal axis, said upper chord comprising:
- a first angle, said first angle comprising a first horizontal leg portion and a upward vertical leg portion;
- and
- a second angle, said second angle comprising a second horizontal leg portion and a downward vertical leg portion;
- a lower chord;
- an intermediate web member joining said upper chord and said lower chord, said intermediate web member comprising a plurality of tension and compression members triangulating a space between said upper chord and said lower chord;
- placing a plurality of removable spanner bars extending between said plurality of joists;
- placing a support platform over said plurality of removable spanner bars;
- and
- pouring a concrete slab over said support platform, thereby embedding at least a portion of at least one vertical leg portion of at least one of said plurality of joists in said concrete slab.
8 more elements
Dependencies are inferred from the claim text.