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Wind Design: Examples from SEAOC’s Wind Design Manual based on IBC 2018/ASCE 7-16

The Structural Engineers Association of California (SEAOC) and NCSEA have teamed up to deliver a brand new Web-Based Seminar for you on the massively-popular, newly-published Wind Design Manual. This web-based Wind Design Seminar will be delivered over six weeks in six 1.5 hour webinars by some of the industry’s best and brightest minds.

CE Credits: 9.00

$800.00 for 1 year

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The Structural Engineers Association of California (SEAOC) and NCSEA have teamed up to deliver a brand new Web-Based Seminar for you on the massively-popular, newly-published Wind Design Manual. This web-based Wind Design Seminar will be delivered over six weeks in six 1.5 hour webinars by some of the industry’s best and brightest minds. The Seminar will follow the Manual and cover the following topics: enclosure classification, topographic effects, exposure category, gust effect factor,  a series of full building examples, and several solar PV problems. Each presentation will provide examples of IBC 2018/ASCE 7-16 problems that include a discussion of the provisions in the standard, along with a step-by-step approach to solving the problem.

This seminar is critical to practicing structural engineers, trained designers, building department engineers, plan review agencies, professors and students from across the nation as you can all learn from these examples of code-compliant designs engineered to achieve good performance under wind loading .

The registration fee for the Seminar is $495 for members ($800 for nonmembers), which includes all 9 hours of education and an electronic copy of the recently-released Wind Design Manual. Each individual webinar can be purchased separately for $195 for members ($250 for nonmembers). The Wind Design Manuamay also be purchased separately. Those who purchase the bundle will be given instructions to access the electronic version in one business day from purchase.

  • Purchase all 6 webinars in the Seminar and have access to the recordings for 1 Year.
  • Each seminar purchase is per office location. If your firm is operating remotely, contact NCSEA at ncsea@ncsea.com on how to accommodate multiple users from the same location.

Please note: These webinars are not included in the NCSEA Webinar Subscription.

Schedule of Events

Part 1 – Introduction to the Wind Design Manual, Enclosure Classification, and Topographic Effects, Presented by Emily Guglielmo, SE, and Russell Larsen, PE, SE

Introduction to the Wind Design Manual includes a summary of each of the problems and the authors. It will follow with a deep dive into Design Example 1, which explores the intricacies of Enclosure Classification and internal pressures. The presentation will also cover what constitutes an opening, how to deal with unique geometries, and changes to these provisions in ASCE 7-16. Topographic Effects starts with a review of why wind speed up effects occur and how wind design pressures are affected by topography. Next, the ASCE7-22 Topographic method will be discussed in detail with site examples and tricks to easily evaluate topography.

Part 2 – Exposure Category, Surface Roughness and Gust Factor, Presented by Russell Larsen, PE, SE 

This presentation will start with a review of exposure categories and how exposure affects wind speeds at a building site. It will then demonstrate how a site-specific exposure can be computed using ASCE7 methods. The presentation will then cover the origin and purpose of the Gust Factor for rigid versus flexible buildings, followed by an illustration of the steps used to calculate the Gust Factor.

Part 3 – Wind Loads on Buildings: Directional Procedure, Presented by: Don Scott, SE

This session will focus on a full building design example, using the directional procedure of Chapter 27. The example will include generation of Main Wind Force Resisting (MWFR) and Components and Cladding (C&C) loads. The problem will address the scope and limitations of the directional procedure and focus on a building with unique plan geometry and high wind considerations.

Part 4 – Wind Loads on Buildings: Envelope Procedure and Directional Procedure, Presented by: Don Scott, SE, and Anurag Jain, PhD, PE

This session will start with a focus on wind loads on a building using the Envelope Procedure of Chapter 28. This problem will be solved using both Part 1 and Part 2 methodologies and will highlight the effects of altering the roof configuration (hip and flat) for the same building. The session will also include another example utilizing the provisions of ASCE 7-16’s Chapter 27 on Directional Method to determine the wind load for design of the Main Wind Force Resisting System (MWFRS), and Chapter 30, Part 3: Buildings with mean roof height, h > 60 feet method for computing the Components and Claddings (C&C) pressures on the building’s façade. A rectangular plan shape 14-story steel moment frame building with an eccentric podium on the bottom floor is analyzed for this example. Dimensions of the building in this design example were purposely selected to demonstrate the process for evaluating the gust effect for flexible buildings, Gf. The process for computation of design pressures for components and cladding is also illustrated in this design example.

Part 5 – Solar PV: Wind Load Considerations, Presented by: Karl Telleen, SE

This presentation will cover Wind Design Manual Examples 10 through 13. The examples address low-profile tilted panels on flat roofs (Examples 10 and 11) and flush-mounted panels on sloped roofs (Examples 12 and 13), highlighting new requirements in ASCE 7-16 that followed work by SEAOC’s Solar Photovoltaic Systems Committee. The presentation focuses on concepts behind the requirements and how wind loads on rooftop solar panels are affected by building size and shape, and configuration of the solar arrays.

Part 6 – Solar PV: Seismic and Gravity Load Considerations and Solar Carport, Presented by: John Wolfe, SE, Gwen Searer, PE, SE, and Shaun Walters, PE, SE

This DE14 presentation will review the seismic requirements for design of a low-profile, unattached solar PV system on a low-slope roof. The session will also introduce SEAOC PV-1: Structural Seismic Requirements and Commentary for Rooftop Solar PV Arrays, including provisions adopted by ASCE 7. The DE15 presentation will show how gravity loads should be addressed in the design of structures that support roof-mounted photovoltaic (PV) panels. Gravity loads associated with PV panels are more complicated than they might seem, particularly with respect to existing buildings. Best practices and recommendations for dealing with gravity loads will be discussed, as will the associated upgrade triggers in the International Existing Building Code. The DE16 presentation shows the application of ASCE 7-16 and 2018 IBC to an open-grid carport structure supporting a photovoltaic (PV) panel system. This presentation will briefly cover Wind Design Forces (MWFRS), Combinations of Loads (MWFRS), Design Requirements for MWFRS, Wind Design Forces (C&C), Combinations of Loads (C&C) plus additional considerations.