# Concrete Slab on Grade Analysis Calculator (Wall Loading)

For Slab Subjected to Continuous Line Loading from Wall

#### Input Data

Slab Thickness, t = | in. | |

Concrete Strength, f 'c = | psi | |

Subgrade Modulus, k = | pci | |

Wall Load, P = | in. |

#### Result :

**References:**

"Concrete Floor Slabs on Grade Subjected to Heavy Loads"

Army Technical Manual TM 5-809-12, Air Force Manual AFM 88-3, Chapter 15 (1987)

Subgrade Soil Types and Approximate Subgrade Modulus (k) Values | ||
---|---|---|

Type of Soil | Support Provided | k Values Range (pci) |

Fine-grained soils in which silt and clay-size particles predominate | Low | 50 - 120 |

Sands and sand-gravel mixtures with moderate amounts of silt and clay | Medium | 130 - 170 |

Sands and sand-gravel mixtures relatively free of plastic fines | High | 180 - 220 |

Cement-treated subbases | Very high | 250 - 400 |

Note: direct solution for t(min) has been rounded up to nearest 1/4" thickness.

Note: direct solution for t(min) has been rounded up to nearest 1/4" thickness.

**Disclaimer: **This calculator is not intended to be used for the design of actual structures, but only for schematic (preliminary) understanding of structural design principals. For the design of an actual structure, a competent professional should be consulted.

‘Calculations courtesy of Alex Tomanovich, PE ’