The Difference Between Static and Dynamic Concrete Floors

Dynamic Concrete Floor Design

• Dynamic concrete floors are connected to a semi-flexible structure that can absorb modest vibrations without damaging the concrete. The vibration tolerance of concrete floors is enhanced by post-tensioning, which involves reinforcing concrete with high-strength steel bars called tendons. Steel tendons can absorb vibrations and transfer that motion to anchors that maintain the tension in the steel bars, preventing flexing of concrete that would otherwise fracture. In skyscrapers, the composite steel-concrete floors are attached to shear connectors to create dynamic concrete floors. The concrete floor can then flex as the building sways in the wind or under the added weight of crowds without fracturing.

Static Concrete Floor Design

• Static floors lack the flexibility of dynamic concrete floors. Static concrete floors are poured in place around un-tensioned steel bars. Static concrete slabs do not require additional anchors. However, if the static load creates enough deflection in the floor, the concrete will crack. Residential concrete slabs are an example of static concrete floor design.

Anti-Static Concrete Floor Design

• Static electricity can fry sensitive electronic components and interfere with sensors. Anti-static coatings can be painted over a concrete floor to add static control. Static control increases the electrical resistance of the concrete, preventing static buildup. Installing rubber-backed tile on top of a concrete floor reduces its conductivity.