Category Archives: Concrete

Reinforced Concrete Moment-Curvature – 3; Restrained Shrinkage and Creep

Posted on 23/01/2010 by dougaj4

The previous post in this series provided Excel User Defined Functions (UDFs) to find the strain in a concrete section due to unrestrained creep and shrinkage.  In this post the effect of restraint of the creep and shrinkage strains by … Continue reading →

Posted in Concrete, Newton | Tagged , , , , | 7 Comments

Just in Time for Christmas!

Posted on 21/12/2009 by dougaj4

The new version of the Australian Standard Concrete Structures Code (AS 3600) has just made it for 2009: Download from SAI Global

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Reinforced Concrete Moment-Curvature – 2; Shrinkage and Creep

Posted on 08/12/2009 by dougaj4

The previous post in this series provided an Excel User Defined Function (UDF) to find  the short term curvature of a reinforced concrete section subject to combined bending and axial load.  In this post UDFs will be presented to determine the strain … Continue reading →

Posted in Concrete, Excel, Newton, UDFs, VBA | Tagged , , , , , , , | 4 Comments

Reinforced Concrete Moment-Curvature – 1

Posted on 22/11/2009 by dougaj4

The flexural curvature of any beam composed of material with linear elastic behaviour, subject to a bending moment, M, is given by: C = M / EI where E is the elastic modulus of the beam, and I is its … Continue reading →

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

Reinforced Concrete Section Analysis – with prestress

Posted on 25/10/2009 by dougaj4

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 | Tagged , , , , , , , , , | 3 Comments