How to calculate bending capacity M for a reinforcement concrete wall?
How to calculate bending capacity M for a reinforcement concrete wall?
(OP)
Hello guys and thank you for your time,
Can you tell me a book or where to search how the bending moment of a RC wall is calculated ? I only got the capable moment from sotftware like Extract but i want to learn how the program does it ? I know how to calculate for a beam, but a wall..
Can you tell me a book or where to search how the bending moment of a RC wall is calculated ? I only got the capable moment from sotftware like Extract but i want to learn how the program does it ? I know how to calculate for a beam, but a wall..






RE: How to calculate bending capacity M for a reinforcement concrete wall?
RE: How to calculate bending capacity M for a reinforcement concrete wall?
RE: How to calculate bending capacity M for a reinforcement concrete wall?
The greatest trick that bond stress ever pulled was convincing the world it didn't exist.
RE: How to calculate bending capacity M for a reinforcement concrete wall?
The greatest trick that bond stress ever pulled was convincing the world it didn't exist.
RE: How to calculate bending capacity M for a reinforcement concrete wall?
I want to calculate reinforcement in this was and then bearing capacity.
RE: How to calculate bending capacity M for a reinforcement concrete wall?
RE: How to calculate bending capacity M for a reinforcement concrete wall?
The greatest trick that bond stress ever pulled was convincing the world it didn't exist.
RE: How to calculate bending capacity M for a reinforcement concrete wall?
Effectively only your extreme bars will yield, but the whole of the far third will take loop road and play games with your traditional computation. Including the (low end factored - ie: 0.6G or similar) dead load couldn't be simpler - You add in the returning moment as additional capacity.
RE: How to calculate bending capacity M for a reinforcement concrete wall?
But the axial load affects the neutral axis position, so how can you just add it in as though it was linear?
For any given neutral axis position and specified ultimate concrete strain you can calculate the force in the concrete and the force in all the bars, taking account of the yield stress.
Find the total reaction force, and adjust the neutral axis position so that the reaction is equal to the applied load, then take moments about the centre of the section.
It is fairly straightforward to set up a spreadsheet to do that, or this blog post has links to a paper with a closed form solution and a spreadsheet that will do the job (for a rectangular section, or any section made up of trapezoidal layers).
Doug Jenkins
Interactive Design Services
http://newtonexcelbach.wordpress.com/
RE: How to calculate bending capacity M for a reinforcement concrete wall?