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White Paper February 13, 2020

Strong Column-Weak Beam Check (NBCI-2016)

Summary

Strong Column-Weak Beam Check in ProtaStructure with NBCI 2016

ProtaStructure Suite now fully supports Indian Codes (NBCI), including standards for loading, seismic design, and steel and concrete design. This ensures compliance and precision for engineers working on Indian projects. One critical aspect of structural design in NBCI 2016 Annex F is the strong column-weak beam check, which ensures ductility and safety in seismic design.

Strong Column-Weak Beam Check Process

After completing the building analysis, ProtaStructure automatically checks both global and local ductility conditions. This includes verifying that columns remain stronger than beams at beam-column joints, a key principle to prevent catastrophic failures during seismic events.

The process involves:

  1. Analyzing Beam-Column Joint Behavior: Ensuring that columns can adequately support the forces transferred by beams during an earthquake.
  2. Global Ductility Check: Verifying the overall ductility of the structure to withstand seismic loads.
  3. Local Ductility Check: Ensuring individual joints meet code requirements for deformation and force distribution.

This document provides a step-by-step explanation of these checks through a numerical example of a 4-storey building, illustrating compliance with NBCI 2016 Annex F.

ProtaStructure and Real-World Applications

ProtaStructure ensures that Indian building projects meet seismic safety standards effectively:

  • Explore Real Projects: Browse our Projects Gallery to see how ProtaStructure has been used in real-world applications.
  • Customer Success Stories: Read customer success stories to learn how engineers have achieved precision and compliance using ProtaStructure.

Conclusion

The strong column-weak beam check, as outlined in NBCI 2016 Annex F, is critical for seismic safety. ProtaStructure automates these checks, providing engineers with an efficient, accurate, and code-compliant solution. By supporting Indian Codes comprehensively, ProtaStructure enhances structural safety and performance for projects in India.