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Wednesday, September 08, 2010  | Structural Floors » Concrete Floors Register  Login
Concrete Basement Structural Floors

  • Strongest, quietest suspended basement floor possible
  • Completely sealed system
  • No organic elements to support mold or fungal growth

When the foundation is poured and stripped and the drains are installed, It is ready for the structural floor
The main steel beams stack under the first floor beams. The purlins are spaced At 8'0" on center for maximum efficient use of the metal deck
We use a 1.5" 22 ga. galvanized composite metal deck with reinforcing metal fibers mixed into the concrete at the batch plant. All plumbing lines are wrapped in foam
Concrete strength is 3000 psi and The pour is laser controlled to ensure a level slab

General Description:
The floor is constructed using a platform of high strength wide flange beams. Purlins are spaced at 8'0" on center running perpendicular to and at the same elevation as the main beams. This platform is covered by 1.5" 22 gauge composite metal deck.  Regular weight concrete is poured over the metal deck to a depth of 4” and reinforced with high strength metal fibers mixed onto the concrete at the batch plant. There are no wood elements in the system and no possibility of rot, mold or other such problems associated with wood floors. Maintaining a minimum 6” air space under the bottom of the beams, the basement finish floor can be as low as 22” above basement grade.

Materials:
Main Beams – 12, 10” or 8” beams as sized by our engineers supported by wall mounted angle iron connections and supported at mid span by 3-1/2” X 3-1/2" x 1/4" tube steel posts anchored to the top of the concrete piers.

Purlins – 12, 10” or 8” beams as sized by our engineers running perpendicular to the main beams at 8’0” on center welded to the main beam and supported at the side wall with an angle iron connector. The top of the purlins and main beam are at the same elevation.

Decking – 1.5" 22 ga galvanized composite metal deck as manufactured by Wheeling Corrugated or equal.

Design Criteria: Dead Load 52#/sf, Live Load 40#/sf

Deflection and Noise: Virtually Non-existent

Void Space Access: Prefabricated access assembly with diamond plate cover and recessed handle

Pricing: Less than other competing concrete floor systems.

Quotations include:
Engineering, Installation, steel beams, posts under the structural floor, fasteners, concrete, reinforcing steel, welding, and hoisting. Stamped drawings are on site at the time of installation with an additional two sets delivered to the builder for inspection or record purposes.

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