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INSTRUCTOR: 
Robert G. Pekelnicky, P.E., S.E., M.ASCE

Purpose and Background

This webinar introduces engineers to the seismic hazard and analysis provisions contained in ASCE/SEI 41-23, the latest edition of the standard governing the seismic evaluation and retrofit of existing buildings. ASCE/SEI 41-23 reflects significant advancements in performance based engineering, incorporating updated research, refined modeling parameters, and clearer guidance on selecting and applying seismic hazard levels. Because existing buildings often present complex challenges—ranging from limited documentation to irregular configurations—engineers must understand how to correctly interpret and implement the standard’s hazard and analysis requirements to produce reliable, defensible evaluations.

The 2023 update places greater emphasis on consistency in hazard characterization, improved alignment with national hazard maps, and clearer distinctions between linear and nonlinear analysis procedures. These refinements are intended to reduce uncertainty in seismic demand calculations and to support more transparent decision making when determining appropriate performance objectives. For practitioners, this means a more structured framework for selecting ground motions, evaluating building behavior, and identifying deficiencies that may require retrofit.

This webinar provides a focused overview of these key provisions, highlighting what has changed, why the changes matter, and how they influence engineering practice. Through a practical, example driven discussion, participants will gain clarity on how to apply ASCE/SEI 41-23 in real world assessment and retrofit projects, ensuring that evaluations align with current expectations for safety, reliability, and performance.

Benefits and Learning Outcomes

Upon completion of this course, you will be able to:

  • Explain how ASCE/SEI 41-23 characterizes seismic hazard and how it differs from prior editions.
  • Identify and apply the appropriate analysis procedures—linear and nonlinear—based on building conditions and performance objectives.
  • Select seismic demands and ground motions consistent with ASCE/SEI 41-23 requirements.

Assessment of Learning Outcomes

Students' achievement of the learning outcomes will be assessed via a short post-test exam involving true-false and multiple-choice questions.

Who Should Attend?

  • Civil and structural engineers
  • Building officials
  • Building owners/managers
  • Federal, state, and city agencies

Outline

  • Introduction & Overview of ASCE/SEI 41-23
  • Seismic Hazard Provisions
  • Performance Objectives & Seismic Demand
  • Analysis Procedures: Linear & Nonlinear
  • Practical Application & Key Considerations
  • Q&A

How to Earn your CEUs/PDHs

This course is worth .1 CEU /1 PDH. To receive your certificate of completion, you will need to complete a short post-test and receive a passing score of 70% or higher within 30 days of the course.

How do I convert CEUs to PDHs?

1.0 CEU = 10 PDHs [Example: 0.1 CEU = 1 PDH]


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