Finite element methods for Yield Line Analysis

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SUMMARY

This discussion focuses on the steps required to accurately estimate yield lines in reinforced concrete (RC) structures using finite element methods (FEM). The user seeks clarification on how to determine the yielding line formation and transfer it to beams, particularly in the context of loading from slabs. They reference key literature, including "Theories and Applications of Plate Analysis" by Rudolph Szilard and methods for rigid-plastic yield-line analysis. The conversation emphasizes the need for a clear understanding of pseudo yield line patterns and their refinement through Virtual Work and Equilibrium Methods.

PREREQUISITES
  • Understanding of finite element methods (FEM)
  • Knowledge of yield line analysis in reinforced concrete structures
  • Familiarity with Virtual Work and Equilibrium Methods
  • Experience with commercial software for structural analysis
NEXT STEPS
  • Research the application of FEM in yield line analysis
  • Study the process of refining pseudo yield line patterns
  • Explore the use of Virtual Work and Equilibrium Methods in structural analysis
  • Investigate software tools for yield line analysis, such as ANSYS or Abaqus
USEFUL FOR

Structural engineers, civil engineers, and researchers involved in the analysis and design of reinforced concrete structures, particularly those focusing on yield line analysis and finite element methods.

Ronankeating
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Hi All,

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 transferred 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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