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INSTRUCTOR:  Praveen K. Malhotra, Ph.D., P.E., MASCE

Webinar Brief

The USGS have revised their estimate of the seismic hazard throughout the country. The code committee has revised procedures to compute the seismic design ground motions. This webinar will discuss the upcoming changes in seismic design ground motions in ASCE 7-22. Three methods of generating the design ground motions will be discussed:

• General procedure (GP)
• Ground motion hazard analysis (GMHA)
• Dynamic site-response analysis (SRA)

General procedure is simplest, but in many situations ASCE 7-22 requires a GMHA. In some special situations, a dynamic analysis is required to generate the design ground motions. During this webinar, a real-life example will be solved in a step-by-step manner so the attendees can learn by reproducing the results and asking questions. Discussions are encouraged during the webinar. A soft copy of the entire class notes will be provided before the webinar.

Benefits and Learning Outcomes

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

• Explain the basis of current and future requirements in ASCE 7
• Apply various tools to perform GMHA and dynamic site-response analysis
• Explain the ASCE 7-22 requirements for site-specific design ground motions
• Avoid commonly made mistakes in generating the design ground motions

Assessment of Learning Outcomes

Achievement of the learning outcomes by attendees will be assessed through a short post-assessment (true-false, multiple choice and fill in the blank questions.

Who Should Attend

• Geotechnical engineers
• structural engineers
• architects
• seismologists
• geologists
• building officials
• insurers
• regulators
• students
• educators

Outline

• Meaning of response spectrum of ground motion
• MCER and design response spectra using the GP
• Uniform Hazard Response Spectrum (UHRS) by the USGS
• Probabilistic MCER response spectrum
• Deterministic response spectrum
• MCER and design response spectra as per the GMHA
• Rock-outcrop ground motion histories
• Dynamic analysis of soil profile
• Spectral amplifications from dynamic analysis
• MCER and design response spectra from SRA

How to Earn your CEUs/PDHs

This course is worth .2 CEUs/2 PDHs. To receive your certificate of completion, you will need to complete a short on-line post-test and receive a passing score of 70% or higher within 30 days of the course.