Today’s downloads provide a spreadsheet providing Ultimate Limit State (ULS) analysis of reinforced or prestressed concrete sections, and an iterative method for finding the depth of the Neutral Axis in a circular reinforced concrete section.
The ULS analysis spreadsheet is described at: ULS Analysis of Concrete Beams; now with added units it may be downloaded from:
Input and output are similar to the SLS function in Beam Design Functions, presented yesterday, with the added feature that the function is unit aware, and will accept input and output in a variety of accepted units:
The spreadsheet to find the neutral axis depth is described at: Calling a function as a variable – another example. It may be downloaded from:
The function uses Brent’s Method to solve an equation by iteration, and is included the Circe function (part of RC Design Functions spreadsheet) presented yesterday: