Webinar instructions will be emailed before the date of the webinar.

Please log into the webinar 15 – 30 minutes before the start time.

Monday, June 17, 2024
9:00 am – 4:00 pm CDT


Presented by: William L. Coulbourne, P.E.

Study of Tornadoes and Development of ASCE 7-22

  • Definition of tornadoes and other high-wind events
  • History and location of tornadoes and windstorms
  • Development of ASCE/SEI 7-22
  • Scope of Chapter 32 on Tornado Loads in ASCE 7-22

Location and Classification of Structures

  • ASCE 7-22’s tornado hazard maps
  • Building risk categorization
  • Meeting and exceeding standards
  • Adoption and enforcement of ASCE 7 standards
  • Considering climate change and increased number/magnitude of storms

Design Requirements for Risk Category III and IV Buildings

  • IBC requirements for tornado protection for RC III and IV buildings
  • Design provisions in ASCE 7-22 for determining tornado wind pressures
  • Shelter standards
  • How to achieve shelter standards

Resisting Tornadic Wind Loads on Buildings

  • Magnitude of tornadic wind pressures
  • Past failures and lessons learned in how to keep the building together
  • Lessons learned from study of Joplin tornado, 2011
  • Managing progressive collapse and failures
  • Common failure modes to focus on improving

Surviving Impact Loads on Buildings

  • Impact load testing
  • Finding impact load test results
  • Managing progressive collapse and failures
  • Using ASCE 7 reliability theory


Webinar Instructions

All attendees must log-on through their own email – attendees may not watch together if they wish to earn continuing education credit. HalfMoon Education Inc. must be able to prove attendance if either the attendee or HalfMoon Education Inc. is audited.

Certificates of completion can be downloaded in PDF form upon passing a short quiz. A link to the quiz will be sent to each qualifying attendee immediately after the webinar. The certificate can be downloaded from the Results page of the quiz upon scoring 80% or higher.

Webinars are presented via GoToWebinar, an easy-to-use application that can be run on most systems and tablets. Instructions and login information will be provided in an email sent close to the date of the webinar. It is highly recommended that you download, install and test the application before the webinar begins by clicking on the link in the email.

GoToWebinar App requirements:
Windows 7 – 10 or Mac OSX Mavericks (10.9) – macOS Catalina (10.15)

Web Browser:
The two most recent version of the following browsers:
Google Chrome, Mozilla Firefox, Apple Safari, Microsoft Edge
Internet Explorer v11 (or later) with Flash enabled.

Internet connection: Minimum of 1Mbps       Hardware: 2GB RAM or more

For more information, visit the Support section at


6.0 PDHs

6.0 HSW CE Hours

AIA - American Institute of Architects
6.0 LU|HSW

ICC - International Code Council
.6 CEUs (Building)


Continuing Education Credit Information

This webinar is open to the public and is designed to qualify for 6.0 PDHs for professional engineers and 6.0 HSW continuing education hours for licensed architects in all states that allow this learning method. Please refer to specific state rules to determine eligibility.

HalfMoon Education is an approved continuing education sponsor for engineers in Florida (Provider License No: CEA362), Indiana (License No. CE21700059), Maryland, New Jersey (Approval No. 24GP00000700) and North Carolina (S-0130). HalfMoon Education is deemed an approved continuing education sponsor for New York engineers and architects via its registration with the American Institute of Architects Continuing Education System (Regulations of the Commissioner §68.14(i)(2) and §69.6(i)(2)). Other states do not preapprove continuing education providers or courses.

The American Institute of Architects Continuing Education System has approved this course for 6.0 HSW LUs (Sponsor No. J885). Only full participation is reportable to the AIA/CES.

The International Code Council has approved this event for .6 CEUs in the specialty area of Building (Preferred Provider No. 1232).

Attendance will be monitored, and attendance certificates will be available after the webinar for those who attend the entire course and score a minimum 80% on the quiz that follows the course (multiple attempts allowed).

On-Demand Credits

The preceding credit information only applies to the live presentation. This course in an on-demand format is not pre-approved by any licensing boards and may not qualify for the same credits; please consult your licensing board(s) to ensure that a structured, asynchronous learning format is appropriate. The following pre-approvals may be available for the on-demand format upon request:

6.0 HSW LUs (AIA)


William L. Coulbourne, P.E.

Consulting Structural Engineer with Coulbourne Consulting

Mr. Coulbourne has a Civil Engineering degree from Virginia Tech and a master’s degree in Structural Engineering from the University of Virginia. He has more than 40 years of experience in the engineering and construction business. Most of this experience has been focused on buildings, with the last 15 years exclusively devoted to engineering solutions to the problems created by high wind and flood events including hurricanes and tornadoes. Mr. Coulbourne is actively engaged in guidelines and standards used by engineering professionals and builders for improving the performance of buildings in natural hazard environments, and he has been part of damage assessment teams for many major high wind and flood events. He teaches high wind and flooding design concepts for design professionals through workshops and webinars and has authored several high wind design guides including the Federal Emergency Management Agency’s (FEMA) Coastal Construction Manual. Mr. Coulbourne is active in the engineering standards work of American Society of Civil Engineers (ASCE) 7 Minimum Design Loads on Buildings and Other Structures and ASCE 24 Flood Resistant Design and Construction. He is a licensed professional engineer in Delaware, Virginia, and Maryland and he is a certified structural engineer and certified building inspection engineer. Mr. Coulbourne has taught as an adjunct faculty member in the Civil Engineering Department of the University of Delaware.

AIA Info

AIA Provider Statement:

HalfMoon Education Inc. is a registered provider of AIA-approved continuing education under Provider Number J885. All registered AIA/CES Providers must comply with the AIA Standards for Continuing Education Programs. Any questions or concerns about this provider of learning program may be sent to AIA/CES ( or (800) AIA 3837, Option 3).

This learning program is registered with AIA/CES for continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using, distributing, or dealing in any material or product.

AIA continuing education credit has been reviewed and approved by AIA/CES. Learners must complete the entire learning program to receive continuing education credit. AIA continuing education Learning Units earned upon completion of this course will be reported to AIA/CES for AIA members. Certificates of Completion for both AIA members and non-AIA members are available upon request.

Course Title: Designing to Withstand Tornadic Loads on Buildings

Delivery Method: Live Online

Course Description: This course examines design requirements, standards and best practices for designing buildings to withstand loads produced by tornadoes and other high-wind events. Topics include ASCE 7-22, classification of structures, design requirements for risk category III and IV buildings, and managing tornadic wind loads and impact loads on buildings.

Learning Objectives:

Learning Objective 1:
Learners will be able to define what is and is not a tornadic load, and explain how ASCE 7 standards have evolved and been adopted to address loads on buildings from high-wind events.

Learning Objective 2:
Learners will be able to reference and discuss ASCE 7-22’s hazard maps and explain how a building’s risk categorization is determined.

Learning Objective 3:
Learners will be able to comply with design requirements for risk category III and IV buildings.

Learning Objective 4:
Learners will be able to identify code provisions, materials and components to manage tornadic wind and impact loads on buildings.

LUs: 6.0                                                                                              LU Type: LU|HSWs.

Prerequisites: Some experience with structural design

Advance Preparation: None

Program Level: Intermediate

Course Expiration Date: 03/03/2025

Complaint Resolution Policy:

Complaints regarding this course can be emailed to or by calling (715) 835-5900. A HalfMoon Education representative will respond within 72 hours to resolve the complaint, which will include, but not limited to, access to another CE activity at no or reduced cost or a full or partial refund. Each instance will be resolved on a case-by-case situation.

USB MP4/PDF Price: $349.00

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