GRDSLAB is developed by Mr. Alex Tomanovich which is spreadsheet based program powered by MS-Excel. The Spreadsheet program can be used for evaluating the concrete slabs on grade. Mainly, a concrete slab on its grade is based on concentrated post or wheel loading. The above said Spreadsheet construction program process to examine the slab flexural, bearing, and shear stresses; calculating the crack width. It also states the minimum required distribution reinforcing as well as checks the bearing stress on the dowels at construction joints for the specified parameters.
A supplementary method for examining and defining the necessary slab thickness for flexure is used along with the designed chart provided by Portland Cement Association (PCA). Calculating the capacity of a slab on grade is dependent on arrangement of stationary, continuous wall (line-type) load and live loads distribution uniformly.
Program is based on the following theorem:-
Spreadsheet “Slab on Grade” supposes a structurally unreinforced slab and ACI-360″Type B” strengthen only for shrinkage and temperature and interior Load is assumed for flexural analysis. This means wheel Load or concentrated post is accepted to be well far from a “free” slab edge or corner. In the Westergaard analysis model some of the more crucial and refining assumptions are provided.
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