Based on the popular Code Conforming Wood Design (CCWD), a joint publication of the American Wood Council (AWC) and the International Code Council (ICC), this presentation concisely summarizes the 2018 International Building Code (IBC) for commercial and multi-family residential construction. It will explain the determination of maximum building size for eight common use groups using the height and area tables of the 2018 IBC and pre-calculated tables provided in the CCWD. It will also address establishing fire resistance for wood assemblies and heavy timber; special provisions for pedestal buildings; criteria for finishes, appendages, and other wood features; the scoping of referenced wood design standards; an overview of structural provisions in Chapter 23; and requirements for precautions during construction.
This course will discuss the approval of beyond prescriptive code tall mass timber developments through effective collaboration and project vision. Learn how the largest mass timber high-rise building in the world, the Ascent, was completed by involving the right people at the right time and approving IBC code variances supported by laboratory testing. Structural design concepts used for the structure metropolitan high-rise building firefighting concepts will be discussed briefly, as will for fire and code officials, engineers, and other design professionals.
Funding provided in part by the Softwood Lumber Board.
Principles of Fire and Connection Design & Special Inspection
Changes to the 2021 International Building Code allow for the construction of mass timber buildings with larger heights and areas than is currently permitted in Types III, IV, and V construction. This presentation will provide an overview of fire design of mass timber building elements and assemblies, and the protection of connections. New code provisions for special inspection of tall mass timber structures will also be discussed.
Funding provided in part by the Softwood Lumber Board.
The International Code Council’s (ICC) International Building Code (IBC) Chapter 17, titled Structural Tests and Special Inspections, will be covered in this program. This presentation provides background on special inspections for wood construction, in addition to discussion on related topics such as prefabricated wood components and special inspections for lateral resistance as it pertains to the 2018 IBC. Additionally, background and requirements for large high load diaphragms will be discussed.
Funding provided in part by the Softwood Lumber Board.
Wood-Frame Shear Walls And SDPWS: Insights from Testing with 10d “Short” Nails, Better End-Post Details, and Added Gypsum Wallboard
Experimental studies of cyclic performance of wood-frame shear walls give insight into structural performance and have informed recent changes implemented in the 2021 Special Design Provisions for Wind and Seismic (SDPWS). Experimental results for 10d short nails, shear wall end post details, and gypsum wallboard contribution to shear wall strength and stiffness are summarized. SDPWS requirements and commentary guidance relative to the tested systems will also be discussed.
Significant Changes to the 2021 International Residential Code, Part 1
This seminar provides an overview of the 2021 Significant Changes to the International Residential Code, including an in-depth examination of each code change.
This program includes discussion about wood-based connection design based on numerous help desk questions and feedback from design professionals. AWC has identified some commonly overlooked wood-based connection engineering requirements from the National Design Specification® (NDS®) for Wood Construction and Special Design Provisions for Wind and Seismic (SDPWS) for discussion. Connection detailing requirements and design examples will also be provided.
Funding provided in part by the Softwood Lumber Board.
Advancing Environmental Transparency for Wood Products
The built environment is responsible for nearly 40% of annual global greenhouse gas emissions. In order to avoid the worst climate change scenarios, rapid decarbonization is needed in all sectors. Wood products present a right-now solution to this challenge, as they are significantly lower in embodied carbon than other conventional building materials, and, when sourced from sustainably managed forests, provide numerous environmental benefits. This webinar will walk through the sustainability story of U.S. wood products and show the work we’re doing to tell the story transparently through data and EPDs.
With encouragement from the U.S. wood products industry, in 2016, the International Code Council (ICC) formally began to explore the feasibility of adding provisions for tall mass timber buildings in the U.S. model building codes. Since that time, the ICC Tall Wood Building (TWB) Ad Hoc Committee has reviewed voluminous materials regarding tall mass timber buildings, including domestic and international research. The TWB developed a comprehensive set of technically substantiated code changes, supported by a number of unique fire testing scenarios and designer input. In January 2019, most of these code changes were approved by the ICC membership, including provisions for permissible building heights and areas, number of stories, and fire requirements. Three remaining changes, addressing construction inspections and fire resistance design of connections were approved as part of the 2021 IBC. This presentation will provide a brief oversight of the new U.S. model code provisions for Tall Wood Buildings.
AWC received ANSI approval of its 2024 Fire Design Specification for Wood Construction (FDS) as an American National Standard (ANS). The standard, designated as ANSI/AWC FDS-2024, is primarily ANSI/AWC FDS-2022 with modifications to better coordinate with the 2024 NDS (ANSI/AWC NDS-2024). The FDS brings together provisions for fire design of wood members, assemblies, and connections to meet code requirements. This presentation will discuss the history of fire design provisions for wood construction, existing wood design provisions currently in building codes, wood design standards, and numerous design aids that have been incorporated into the standard. It will also provide information on calculation procedures to address the added fire resistance and thermal benefits of protection provided by use of wood cover, gypsum panel products, and insulation.
The 2018 International Building Code (IBC) specifies that structures using wood-framed shear walls and diaphragms to resist wind, seismic and other lateral loads shall be designed and constructed in accordance with AWC’s 2015 Special Design Provisions for Wind and Seismic (SDPWS). Calculation of wood-frame diaphragm deflection should account for bending and shear deflections, fastener deformation, chord splice slip, and other contributing sources of deflections. The 2015 SDPWS incorporates both a 3-term and 4-term deflection equation that accounts for these variables. This course will provide an overview and comparison of the 3-term and 4-term deflection equations. Additionally, an example showing calculation of mid-span deflection of a blocked wood structural panel diaphragm will be presented.
Funding provided in part by the Softwood Lumber Board.
US model building codes recognize multiple construction types using mass timber. These code provisions stipulate, among other fire safety requirements, minimum fire-resistance ratings for building elements and fire protection of connections. Among the numerous means provided by building codes for establishing fire-resistance ratings, the calculation approach is the primary focus of this course. The AWC National Design Specification for Wood Construction (NDS) and the AWC Fire Design Specification for Wood Construction (FDS) provide the necessary design guidance for establishing the fire-resistance rating of wood building elements using the calculation approach. In this course, NDS and FDS provisions applicable to fire design of mass timber are presented. Examples of how these provisions can be used in design of wood members and connections are also given.