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I'd like to what kind of steps need to be taken to accurately estimate the yield lines of RC structures. My intention is, to know what type of loading is acting on beams transfered from slabs. I know how to formulate thin/thick plates and shells. The results converges with commercial packages but how is the way obtain the yielding line formation and how to correctly transfer it to beams?

It doesn't mean that I'm completely new to the yield line analysis, I've read the Theories and Applications of Plate Analysis by Rudolph Szilard and many nomenclatures e.g.

"GENERAL COMPUTER PROGRAM FOR THE YIELD-LINE SOLUTION OF EDGE SUPPORTED SLABS"

"A computerised method for rigid-plastic yield-line analysis of slabs"

"NUMERICAL YIELD LINE ANALYSIS" by D. BAUER and R. G. REDWOOD

Many of them starts with pseudo yield line pattern where I'm completely confounded how they found it and proceed with refinement and optimization of it, either by Vurtual Work and Equilibrium Method to find the correct Yield Line pattern. Although I've introductory info, this still remains unclear and vague for me. Does anybody can shed some light on that, especially how can be implemented with FEM.

Your comments will be appreciated!

Best Regards,

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# Finite element methods for Yield Line Analysis

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