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Tag Archives: UDF
Python Traps
When converting existing VBA code to Python there are a number of obvious changes to the syntax that need to be made for the code to run at all, but there are also a number of not so obvious traps … Continue reading
Posted in Arrays, Excel, Link to Python, Newton, NumPy and SciPy, PyXLL, UDFs, VBA
Tagged Excel, for loop counters |, Numpy, Passing variables, Python, python traps, PyXLL, UDF, VBA
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ULS design of circular reinforced concrete columns
The RC Design Functions spreadsheet has been updated (to Version 8.04) with the addition of a CircU function for ULS design of circular reinforced concrete sections under combined bending and axial load. The new version, including full open-source code, may … Continue reading
ULS Design Functions – update for AS 3600
The ULS Design Functions spreadsheet (last posted here) has been updated to the new Australian Standard for concrete structures; AS 3600-2018. The new version can be downloaded from: ULS Design Functions.zip Note that the biaxial version included in the download … Continue reading
Posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA
Tagged AS 3600, AS 5100, circular section, Excel, Reinforced Concrete, UDF, ULS Design Functions, VBA
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RC Design Functions 8_03
The RC Design Functions 8_03 spreadsheet is now available for free download from: RC Design Functions8.zip The main changes are: The NA layer check has been corrected for compression steel in tension The new AS 3600 crack width and curvature … Continue reading
Posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA
Tagged AS 3600, crack width, Curvature, Excel, RC Design Functions, Reinforced Concrete, UDF, VBA
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Numerical Integration; Tanh-Sinh Quadrature v. 4.42
Back to Newton and Excel. I recently received a new update to the Tanh-Sinh Quadrature spreadsheet from Graeme Dennes, which may be downloaded from: Tanh_Sinh Quadrature. From the Readme: The Tanh-Sinh quadrature workbook has been enhanced as follows: The Tanh-Sinh … Continue reading
Posted in Charts, Excel, Maths, Newton, Numerical integration, UDFs, VBA
Tagged Double Exponential, Excel, Gauss-Kronrod, numerical integration, Romberg, Tanh-Sinh method, Tanh-Sinh Quadrature, UDF, VBA
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Numerical Integration; Tanh-Sinh Quadrature v. 4.4
Update 27 Nov 2018: Version 4.41 now available from the link below, with minor modifications for compatibility with Excel 2007. I recently received a new version (4.4) of the numerical integration spreadsheet by Graeme Dennes which is now available for … Continue reading
Posted in Charts, Excel, Maths, Newton, Numerical integration, UDFs, VBA
Tagged Double Exponential, Excel, Gauss-Kronrod, numerical integration, Romberg, Tanh-Sinh method, Tanh-Sinh Quadrature, UDF, VBA
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AS 3600 and RC Design Functions 8.01
The updated RC Design Functions spreadsheet (presented here) included an updated UMom function to find the ultimate strength of a rectangular section under combined bending and axial load; but I omitted to include the revisions to the alpha2 and Gamma … Continue reading
Posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA
Tagged AS 3600, Excel, Rectangular stress block factors, Reinforced Concrete Design Functions, UDF, ULS design, VBA
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