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A mathematical model is developed, which describes the behavior of reinforced concrete under high-velocity impact and explosion conditions within the framework of mechanics of continuous media. The problem of a model projectile penetrating into a layered target consisting of two concrete slabs separated by a sand layer and blasting of an explosive charge encased in the embedded projectile is solved in the three-dimensional formulation by the finite-element method. The effect of reinforcement on penetration and failure of reinforced-concrete slabs is studied by means of mathematical simulations.
Program Description:
"GRDSLAB" is a 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. Loading data for fork trucks and AASHTO trucks is included.
1. Doc: This documentation sheet
2. Slab on Grade: Concrete Slab on Grade Analysis for Concentrated Post or Wheel Loading
3. PCA Fig. 3-Wheel Load: PCA Figure 3 - Design Chart for Single Wheel Loads
4. PCA Fig. 7a-Post Load: PCA Figure 7a - Design Chart for Post Loads (k = 50 pci)
5. PCA Fig. 7b-Post Load: PCA Figure 7b - Design Chart for Post Loads (k = 100 pci)
6. PCA Fig. 7c-Post Load: PCA Figure 7c - Design Chart for Post Loads (k = 200 pci)
7. Wall Load: Concrete Slab on Grade Analysis for Wall Load
8. Unif. Load: Concrete Slab on Grade Analysis for Stationary Uniform Live Loads
9. Fork Truck Data: Fork Truck Axle Load, Wheel Load, and Spacing Data
10. AASHTO Truck Data: AASHTO Truck Axle Load, Wheel Load, and Spacing Data
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