Tag Archives: Prestressed concrete

Composite Beam Spreadsheet Update 1.01

Posted on November 4, 2017 by

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 , , , , , , , | Leave a comment

Faster Biaxial Bending

Posted on August 10, 2014 by

The spreadsheet to calculate ultimate moment capacity of a reinforced or prestressed concrete section under combined axial load and biaxial bending, last presented here, has been updated to use the QuadBrent solver, rather than the Excel Goal Seek function, for … Continue reading →

Posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA | Tagged , , , , , , , , | 1 Comment

Reinforced Concrete – ULS capacity under combined axial load and biaxial bending

Posted on June 19, 2014 by

I have modified the ULS Design Functions spreadsheet, last presented here, to analyse sections subject to bi-axial bending, and non-symmetrical sections.  The new version makes use of the routines for splitting any section defined by XY coordinates into trapezoidal layers, described … Continue reading →

Posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA | Tagged , , , , , , | 13 Comments

Concrete ULS spreadsheet update

Posted on July 10, 2013 by

The ULS Design Functions spreadsheet has been updated with the addition of provision for the Eurocode 2 rectangular stress block.  The new spreadsheet can be downloaded from:  ULS Design Functions.zip (including full open-source code). For more details see: ULS Analysis … Continue reading →

Posted in Concrete, Excel, Newton, UDFs, VBA | Tagged , , , , , , | 10 Comments

Bridges Over the Tiber -3

Posted on February 24, 2013 by

See Bridges Over the Tiber -1 for location map. The final installment of Bridges Over the Tiber brings us to the six bridges built in the 20 th Century, which can be grouped in three pairs: two copies of the ancient … Continue reading →

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Daily Download 3: ULS design of reinforced concrete sections

Posted on September 19, 2012 by

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: … Continue reading →

Posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA | Tagged , , , , , , | 23 Comments

Daily Download 2: SLS design of reinforced concrete sections …

Posted on September 18, 2012 by

… and prestressed concrete sections. Today’s download installment covers spreadsheets for design of reinforced and prestressed concrete beams and columns at the Serviceability Limit State (SLS).  The spreadsheets cover design of rectangular and circular sections, sections made up of any … Continue reading →

Posted in Beam Bending, Concrete, Excel, Newton, UDFs | Tagged , , , , , , , , , , | 15 Comments