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# Tag Archives: moment curvature

## Solving non-linear equations with two or more unknowns – 1

Newton’s Method is a well known iterative solution for non-linear equations with one unknown. That is, if some value Y depends on a variable X, then we can use Newton’s Method to find X for any given value of Y. … Continue reading

Posted in Beam Bending, Excel, Maths, Newton, UDFs, VBA
Tagged Brents method, Excel, moment curvature, Newton's Method, non-linear equations, two or more unknowns, UDF, VBA
2 Comments

## Reinforced Concrete Moment Curvature – Development over time

I recently noticed that in the RC Design Functions spreadsheet the TimeCurve function had stopped working. The function calculates the development of reinforced concrete section curvature over time, and was previously presented in Reinforced Concrete Moment-Curvature – 3; Restrained Shrinkage and Creep and Reinforced … Continue reading

Posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA
Tagged creep, development over time, Excel, moment curvature, RC Design Functions, Reinforced Concrete, shrinkage, TimeCurve function, UDF, VBA
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## Tension Stiffening

Tension Stiffening in reinforced concrete is the increase in stiffness of a cracked member due to the development of tensile stresses in the concrete between the cracks. The main application of tension stiffening theory in design applications is in the … Continue reading

Posted in Beam Bending, Concrete, Excel, Newton, UDFs, VBA
Tagged Excel, moment curvature, Reinforced Concrete, tension stiffening, UDF, VBA
3 Comments