Category Archives: Concrete

Secondary moments in prestressed beams with FEA

Posted on January 9, 2023 by dougaj4

Secondary (or hyperstatic) bending moments occur in prestressed beams that are continuous over internal supports, or have other redundant support conditions. Any eccentric prestress force will cause a beam to deflect, and if these deflections are restrained at internal supports, … Continue reading →

Posted in Beam Bending, Concrete, Excel, Finite Element Analysis, Frame Analysis, Newton, Strand7 | Tagged , , , , , , | Leave a comment

More on combined shear and bending design to AS 3600

Posted on December 15, 2022 by dougaj4

Further to the last post on this subject I have been looking at procedures to speed up design for shear to AS 3600 when the “refined” analysis procedure is used. The issues that need to be addressed are: I have … Continue reading →

Posted in Beam Bending, Concrete, Excel, Link to Python, Newton, NumPy and SciPy, PyXLL, UDFs | Tagged , , , , , , , , | 1 Comment

RC Design Functions 9.03; compression strut angle adjustment

Posted on November 11, 2022 by dougaj4

The RC Design Functions spreadsheet has now been updated to Version 9.03, and is available for free download from: RC Design Functions9.zip The new version includes a number of corrections to the calculation of beam shear and torsion capacity to … Continue reading →

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

RC Design Functions 9.02; DevLength function

Posted on September 13, 2022 by dougaj4

The RC Design Functions spreadsheet has now been updated to Version 9.02, and is available for free download from: RC Design Functions9.zip Changes in the new version include: The new DevLength function returns reinforcement development length to AS 3600, AS … Continue reading →

Posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA | Tagged , , , , , , , , , , | Leave a comment

RC Design Functions 9.01; Shear for Eurocode 2 and BS 5400

Posted on August 28, 2022 by dougaj4

The RC Design Functions spreadsheet has now been updated to Version 9.01, and is available for free download from: RC Design Functions9.zip The UMomPF function returns ultimate bending and axial load capacity to the Eurocode 2 and BS 5400 design … Continue reading →

Posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA | Tagged , , , , , , , | Leave a comment