Component and Cladding Wind Design Using ASCE/SEI 7-22

In Component and Cladding Wind Design Using ASCE/SEI 7-22, you'll learn ...

• The application of ASCE/SEI 7-22 Component and Cladding wind-design provisions to buildings with mean roof heights above 18.3 m (60 ft)
• The development of height-dependent wind pressures and component-specific design criteria for building-envelope systems
• The evaluation of effective wind area, pressure zones, internal and external pressure effects, and load paths for wall, roof, and parapet components
• How to develop and communicate traceable C and C pressure schedules for façade, roofing, and delegated-design coordination

Overview

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Credit: 5 PDH

Length: 45 pages

Designing Component and Cladding (C and C) wind pressures for buildings with mean roof heights above 18.3 m (60 ft) requires more than applying a single envelope pressure. The engineer must account for height-dependent velocity pressure, localized wall and roof zones, effective wind area, internal pressure, and the load path of the specific component being evaluated.

This course provides a practical, calculation-driven application of ASCE/SEI 7-22 Chapter 30 through an integrated 48.8 m (160 ft) office-building case study. The design workflow is developed from the initial project wind criteria through final C and C pressures for curtain-wall mullions, glazing, roof components, and parapets.

Worked examples demonstrate the development of the velocity-pressure profile, selection of effective wind areas and external pressure coefficients, evaluation of wall Zones 4 and 5, calculation of roof uplift pressures, and application of the Chapter 30 Part 4 parapet provisions. The results are consolidated into C and C pressure schedules suitable for design review and delegated-design coordination.

The emphasis throughout the course is on engineering application rather than coefficient selection alone. Participants will learn how to determine which pressure governs, where that pressure applies, and how to translate ASCE/SEI 7-22 provisions into clear, traceable building-envelope design criteria that can be communicated to façade, roofing, and specialty-design professionals.

Learning Objectives

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

• Identify and describe when ASCE/SEI 7-22 Chapter 30 Part 2 applies to buildings with mean roof heights exceeding 18.3 m (60 ft) and distinguish C and C pressures from MWFRS wind effects.
• Establish and document the wind-design basis for a building, including risk category, basic wind speed, exposure category, directionality factor, topographic factor, ground-elevation factor, enclosure classification, and internal pressure coefficient.
• Calculate height-dependent velocity pressures at multiple building elevations and apply the appropriate velocity pressure to the envelope component and surface being evaluated.
• Determine effective wind areas for curtain-wall mullions and glazed panels based on component dimensions, tributary areas, support conditions, and load-transfer behavior.
• Select applicable external pressure coefficients and calculate positive and negative design pressures for curtain-wall mullions and glazing located in Wall Zones 4 and 5.
• Calculate flat-roof C and C uplift pressures for multiple effective wind areas and roof pressure zones and identify the applicable uplift demand for a specified roof component and location.
• Evaluate inward and outward parapet pressure cases using the applicable ASCE/SEI 7-22 Chapter 30 Part 4 provisions and determine the pressure cases required for framing and attachment design.
• Apply an integrated C and C wind-design workflow from project geometry and wind parameters through component classification, effective wind area, pressure-zone selection, and final design pressure.
• Evaluate C and C calculations and pressure schedules for common design-review issues, including incorrect effective wind areas, pressure zones, load directions, pressure levels, and incomplete load paths.
• Prepare a coordinated C and C pressure schedule that identifies component type, effective wind area, pressure zone, elevation basis, positive and negative pressures, and governing design conditions for façade, roof, and delegated-design applications.

Certificate of Completion

You will be able to immediately print a certificate of completion after passing a multiple-choice quiz consisting of 40 questions. PDH credits are not awarded until the course is completed and quiz is passed.