I want to calculate the bending moment and shear forces of a reinforced concrete beam using direct stiffness matrix method. As the upper portion of the beam is in compression and lower portion is in tension, so what value of Modulus of Elasticity should i use in the stiffness matrix considering reinforcement ?
Please provide the calculation steps or example if possible.
Thank you in advance.
You should know all the required details including the boundary condition of the structural member. Depending on the conditions of your case, please study the very useful, brief and having full of example source entitled " BEAM ANALYSIS USING THE STIFFNESS METHOD" given via the following link:
https://www.erbakan.edu.tr/storage/files/department/insaatmuhendisligi/editor/DersSayfalari/YapSt2/06_Matrix_Beam.pdf
i hope it is useful for you.
All the best.
I know the methodology of using stiffness matrix method. As i am solving in MATLAB, so I wanted to ask that what value of modulus of elasticity should be taken considering the member as composite (reinforcement and concrete both) ?
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