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# Tag Archives: AS 3600

## 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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## New AS 3600 and RC Design Functions 8

A revised version of the Australian Concrete Structures code, AS 3600, was recently published, with many significant changes, including: Changes to ULS reduction Factors Creep and shrinkage Curvature and deflection calculations Crack width calculation and stress limits Major changes to … Continue reading

## 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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## Stress increments in prestressed concrete beams

The two main Australian Standards covering prestressed concrete structures (AS 3600, Concrete Structures, and AS 5100 Part 5, Concrete Bridges) put a limit on the allowable increase in stress in reinforcement and prestressing strands and tendons, when the load increases from … Continue reading

Posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA
Tagged AS 3600, AS 5100, Excel, Prestressed Concrete Design, Stress increment, UDF, VBA
2 Comments

## Using RC Design Functions 4 – Umom and new MaxAx function

Previous post in this series. Download latest version of RC Design Functions6. Previous posts in this series have looked at elastic design functions. We now move on to functions for ultimate limit state (ULS) analysis of reinforced concrete sections: UMom: … Continue reading

Posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA
Tagged ACI 318, AS 3600, AS 5100, BS 5400, BS 8110, Combined bending and axial load, EC 2, Excel, slender columns, UDF, ULS Analysis, VBA
6 Comments

## Equivalent Stress Blocks

Previous posts (e.g. Stress blocks in AS 3600) have presented Excel User Defined Functions (UDFs) that determine the ultimate bending strength of a reinforced concrete section with the use of a rectangular concrete stress block, with depth and stress factors … Continue reading

Posted in Beam Bending, Concrete, Excel, Newton, UDFs
Tagged AS 3600, Eurocode 2, Excel, Rectangular stress block, Reinforced Concrete, UDF, ultimate moment capacity, VBA
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## Getting concrete shrinkage right

At the end of last year, very quietly, the commentary to the Australian Concrete Structures Code (AS 3600) was published. The commentary provides a wide range of explanatory and background information to the requirements in the main code, including some … Continue reading →