# Tag Archives: Prestressed concrete

The Composite Beam Analysis spreadsheet, previously discussed at: https://newtonexcelbach.wordpress.com/2012/04/27/composite-beam-spreadsheet-2/ has now been updated with a VBA User Defined Function (UDF) in place of the previous macro that used the Excel Goal-Seek command.  This has two main advantages: The UDF is much faster … Continue reading

Posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA | | 5 Comments

## Composite Beam Spreadsheet – 2

The previous post on this topic presented a spreadsheet performing elastic analysis of composite reinforced or prestressed composite beams, available for download from: Composite Design Functions-GS.zip.  This post will look in more detail at how the spreadsheet works, and a preview … Continue reading

Posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA | | 4 Comments

As promised in the previous post, a spreadsheet for designing reinforced or prestressed concrete composite beams has now been uploaded to my web site.  It can be downloaded from: Composite Design Functions-GS.zip .  As usual, the spreadsheet includes full open-source code. … Continue reading

Posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA | | 3 Comments

## Composite Concrete Beam Analysis

Composite concrete beams are widely used in both building and bridge structures; typically precast pretensioned beams are combined with an in-situ reinforced concrete slab to provide structures that are both efficient in use of materials and fast and easy to … Continue reading

Posted in Concrete, Newton | | 4 Comments

## Using Beam Design Functions

“Beam Design Functions” is an Excel spreadsheet providing a User Defined Function (UDF) that will calculate the stresses, strains, forces and moments in a reinforced or prestressed concrete section subject to any specified bending moment and axial load, using an … Continue reading

Posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA | | 12 Comments

## Reinforced Concrete Section Analysis – with prestress

The simplified reinforced concrete section analysis spreadsheet presented here has been revised to allow the input of a pre-tension stress to either or both layers of reinforcement.  The spreadsheet (including full open source code) can be downloaded from RC Design Functions5. Note … Continue reading

Posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA | | 3 Comments

## Reinforced Concrete Section Analysis – 6; Ultimate Limit State

The previous post in this series included Excel User Defined Functions using closed form solutions to find the ultimate bending and axial load capacity of reinforced or prestressed concrete sections of any complex shape defined by rectangular or horizontal layers.  The … Continue reading

Posted in Beam Bending, Concrete, Newton | | 6 Comments