Plate Bending Of Concrete Floor Slab Equations

Deflection calculations it is backed by site based research.
Plate bending of concrete floor slab equations. Serviceability the actual long term deflection of a normally reinforced slab or beam in the typical floor of a multi level office building depends on a large. Engineering calculators menu engineering analysis menu. The dimensions of the column also directly affect the magnitude of i in the stiffness equation. The concrete floor slab system shown below is for an intermediate floor to be designed considering partition weight 20 psf and unfactored live load 40 psf.
F f is measured as the curvature of the floor over a 2 foot interval. Curvature in a simply supported slab. Biharmonic operator for deflection reinforced concrete slab beam floor system operator for the composite action of the plate supported by t beam operator for the moment of the plate at free edge corner operator for the plate supported by balcony beam plate with two edges fixed and two edges supported by balcony beams. Flat plates stress deflection equations and calculators.
F f this number is used to indicate the flatness of a random traffic floor. Flat plate concrete floor system does not use beams between columns or drop panels and it is usually suited. Moisture barrier between the sole plate the concrete slab. The height and cross sectional dimensions of the columns above and below the floor slab affect the bending.
The f f value is primarily a result of how good the finisher was at working the. The concrete society publication. The follow web pages contain engineering design calculators that will determine the amount of deflection and stress a flat plate of known thickness will deflect under the specified load and distribution. 9 6 industrial slabs with post tensioned reinforcement for structural support 9 7 residential slabs with post tensioned reinforcement for structural action 9 8 design for slabs on expansive soils 9 9 design for slabs on compressible soil chapter 10 fiber reinforced concrete slabs on ground p.
Take a grid of 2 foot intervals over the entire floor and put the values through an equation and you get the f f value as an indication of the waviness of the floor. This is essential in a flat slab or plate where the mid panel deflection relative to the supporting columns is the sum of the column strip deflection and the two way panel deflection. Two way flat plate concrete floor system analysis and design. Two way flat plate concrete floor system analysis and design.
Two way flat plate concrete floor system analysis and design the concrete floor slab system shown below is for an intermediate floor to be designed considering partition weight 20 psf and unfactored live load 40 psf. This rigorous method is described in greater detail elsewhere e g. Sole plates or sill plates are the first pieces of framing lumber placed in home construction. A flat plate floor system is a two way concrete slab of uniform depth without interior beams drop panels or.
Flat plate concrete floor system does not use beams between columns or.