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This webinar was co-sponsored by ASCE's Structural Engineering Institute (SEI) and ASCE Continuing Education

Instructor:  T. Eric Stafford

Course Length: 1 Hour

Purpose and Background

Current building codes require all buildings and structures to be designed and constructed to resist the applicable design wind loads. For the vast majority of the U.S., the design wind loads are determined in accordance with the applicable provisions of ASCE 7. This webinar will address the significant changes in the wind load design procedures of the 2010 Edition of ASCE 7 Minimum Design Loads for Buildings and Other Structures. The implications to strength design and allowable stress design resulting from the new strength design-level wind speed maps will be discussed. A new simplified procedure for Main Wind-Force Resisting System (MWFRS) and Component and Cladding loads has been added for buildings up to 160 feet high. The design of the MWFRS is now specifically covered by two Design Procedures: Directional Procedure and Envelope Procedure. A corresponding simplified method is provided for each procedure. This webinar will also address the changes to the Envelope Procedure (formerly the MWFRS provisions for low-rise buildings of Method 2 in ASCE 7-05) and discuss the causes for improper application and interpretation of this method in ASCE 7-05 and ASCE 7-02. The webinar will conclude with a discussion on the refinements to the provisions for roof overhangs, signs, rooftop structures, and the minimum design wind loads.

Learning Outcomes and Webinar Benefits

You will gain an in-depth understanding of the changes to the wind load design procedures in ASCE 7-10, and how these changes will impact the design of buildings for wind loads. You will also learn the rationale for making the changes discussed.

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

• Find out the key changes in ASCE 7-10 wind design procedures that will impact the design of buildings for wind
• Determine the reasoning behind the changes to the wind provisions in ASCE 7-10
• Identify why the Envelope Procedure has been revised for consistency with ASCE 7-98
• Avoid making costly errors due to a lack of understanding of the appropriate adjustments applicable to the wind provisions of ASCE 7-10 for allowable stress design
• Recognize the changes to designing rooftop equipment for wind loads in addition to other structures and building appurtenances
• Achieve a better understanding of how the wind speed maps have changed and how the changes will impact design
• Review wind load calculations on example buildings for comparisons to previous editions of ASCE 7

Assessment of Learning Outcomes

Students' achievement of the learning outcomes will be assessed via a short post-assessment (true-false, multiple choice and fill in the blank questions).

Intended Audience

Structural engineers, architects, code officials and code consultants will benefit from this webinar.

Webinar Outline

• Introduction
• Reorganization of wind provisions (brief discussion)
• Basic wind speed maps
• Strength design-level wind speeds
• Risk categories and classification of buildings
• Load combinations
• Comparison of design pressures
• Directional procedure
• Analytical
• Simplified
• Envelope procedure
• Analytical
• Simplified
• Components and cladding
• Minimum design wind loads
• Rooftop structures and equipment
• Wind tunnel procedure

How to Earn your CEUs/PDHs and Receive Your Certificate of Completion

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 1 year of purchasing the course.

How do I convert CEUs to PDHs?

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