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# Tag Archives: Reinforced Concrete

## Biaxial bending update

The reinforced concrete biaxial bending spreadsheet has now been updated: Stress block and capacity reduction factors updated for AS 3600-2018 ACI factors for US customary units used when stress is entered in ksi or psi units Example data updated The … Continue reading

Posted in Beam Bending, Concrete, Newton
Tagged ACI 318, AS 3600, biaxial bending, Eurocode 2, Excel, Reinforced Concrete, UDFs, ULS Design Functions, VBA
2 Comments

## 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
2 Comments

## 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
9 Comments

## More iterative solvers

Following the recent post on using Brent’s Method solvers on an array (Iterative solvers and arrays), here is another example with an engineering related problem. The example is included in the xlScipy3 spreadsheet, which can be downloaded from: xlScipy3.zip The depth … Continue reading

Posted in Arrays, Beam Bending, Concrete, Excel, Link to Python, Maths, Newton, NumPy and SciPy, UDFs, VBA, xlwings
Tagged Brents method, depth of neutral axis, Excel, Python, Reinforced Concrete, SciPy, UDFs, VBA, xlwings
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## Evaluating text with units and finding the neutral axis

A few weeks ago a comment asked for guidance on finding the moment capacity of a reinforced concrete section. This post will look at finding the depth of the neutral axis (NA) in a rectangular section, with a single layer of … Continue reading

Posted in Beam Bending, Concrete, Excel, Maths, Newton, UDFs, VBA
Tagged depth of neutral axis, elastic analysis, EvalU, evaluate text strings, evaluate units, Excel, Reinforced Concrete, UDF, ULS analyis, unit aware, VBA
5 Comments

## Composite Beam Spreadsheet Update 1.01

Following a comment here, I have modified the Composite Beam spreadsheet to correct the stage 1 stresses forces in the reinforcement as listed in Columns 6 and 7, when the tensile face is the top. The output has also been … Continue reading

Posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA
Tagged AS 3600, AS 5100, Composite beam design, Excel, Prestressed concrete, Reinforced Concrete, UDF, VBA
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