Civil Engineering Association

Slab on Grade Analysis

Subjected to Concentrated Post or Wheel Load

Spreadsheet program written in MS-Excel for the purpose of analysis of concrete slabs on grade. Specifically, a concrete slab on grade may be subjected to concentrated post or wheel loading. Then for the given parameters, the slab flexural, bearing, and shear stresses are checked, the estimated crack width is determined, the minimum required distribution reinforcing is determined, and the bearing stress on the dowels at construction joints is checked. Also, design charts from the Portland Cement Association (PCA) are included to provide an additional method for determining/checking required slab thickness for flexure. The ability to analyze the capacity of a slab on grade subjected to continuous wall (line-type) load as well as stationary, uniformly distributed live loads is also provided.

- Concrete Slab on Grade Analysis for Concentrated Post or Wheel Loading
- PCA Figure 3 - Design Chart for Single Wheel Loads
- PCA Figure 7a - Design Chart for Post Loads (k = 50 pci)
- PCA Figure 7b - Design Chart for Post Loads (k = 100 pci)
- PCA Figure 7c - Design Chart for Post Loads (k = 200 pci)
- Concrete Slab on Grade Analysis for Wall Load
- Concrete Slab on Grade Analysis for Stationary Uniform Live Loads

This program is based on the following references:

a. "Load Testing of Instumented Pavement Sections - Improved Techniques for Appling the Finite Element Method to Strain Predition in PCC Pavement Structures" - by University of Minnesota, Department of Civil Engineering (submitted to MN/DOT, March 24, 2002)
b. "Principles of Pavement Design" - by E.J. Yoder and M.W. Witczak (John Wiley & Sons, 1975)
c. "Design of Concrete Structures" - by Winter, Urquhart, O'Rourke, and Nilson" - (McGraw-Hill, 1962)
d. "Dowel Bar Opimization: Phases I and II - Final Report" - by Max L. Porter (Iowa State University, 2001)
e. "Design of Slabs on Grade" - ACI 360R-92 - by American Concrete Institute (from ACI Manual of Concrete Practice, 1999)
f. "Slab Thickness Design for Industrial Concrete Floors on Grade" (IS195.01D) - by Robert G. Packard (Portland Cement Association, 1976)
g. "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)

Code:
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