ACI 318-19 Changes to the Concrete Design Standard-Appendix A Design Verification Using Nonlinear Dynamic Analysis

Appendix A Design Verification Using Nonlinear Dynamic Analysis

Video Transcription

Video Summary

Appendix A of ACI 318.19 addresses design verification using nonlinear dynamic analysis, a crucial development from the 3.18.19 code cycle. It aligns with ASE 7.16 and other guidelines requiring nonlinear response history analysis for certain designs, primarily tall buildings. The appendix provides a framework for verifying concrete structure designs originally proportioned with linear methods. Nonlinear analysis is crucial for buildings over 240 feet with concrete shear wall cores, per IBC 2018 Section 104.11. While currently focused on seismic designs, expanding these principles to wind design is underway for the 318-2025 edition.

Keywords

nonlinear dynamic analysis

ACI 318.19

tall buildings

seismic design

concrete shear wall