Three building features - height, area, and number of stories - will often determine the fire resistive construction requirements of building elements in light wood frame construction. This presentation introduces common types of framing and scoping requirements associated with using wood in combustible construction in Types III and V structures. These requirements are summarized in the 2018 Code Conforming Wood Design (CCWD) which will also be discussed. Additionally, one of the methods for determining fire resistance per section 703.3 in the International Building Code is fire-resistant designs documented in approved sources. The American Wood Council's Design for Code Acceptance No. 3 Fire-Resistance-Rated Wood-Frame Wall and Floor/Ceiling Assemblies (DCA-3) is commonly used as an approved source to specify rated wood-frame assemblies.
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 introduces basic design and construction methods for single-story residential wood decks focusing on the significant changes for the 2018 IRC. The vertical and lateral load paths of conventional residential decks are addressed in the 2018 International Residential Code. Specific design guidance includes convenient span tables for joists and beams and charts of post sizing limitations and connection methods. Figures for multiple lateral connections make connection to an existing dwelling simpler and require less removal of existing materials.
This presentation will provide an overview of the significant changes for wood design per AWC's National Design Specification® (NDS) for Wood Construction. The NDS is referenced in the International Building Code and International Residential Code and used to design wood structures worldwide. The 2018 NDS references ASCE/SEI Standard 7-16 Minimum Design Loads and Associated Criteria for Buildings and Other Structures which includes increased wind loads. Participants will learn about changes in the 2018 NDS to address increased wind loads and gain an overview of the standard.
The Wood Frame Construction Manual (WFCM) for One- and Two-Family Dwellings (ANSI/AWC WFCM-2018) has been updated and is referenced in the 2018 International Building Code (IBC) and 2018 International Residential Code (IRC). The 2018 WFCM uses gravity and lateral loads based on ASCE 7-16 Minimum Design Loads and Associated Criteria for Buildings and Other Structures. This presentation will provide an overview of the significant changes in the 2018 WFCM relative to the previous 2015 edition. The WFCM provides code officials and designers with time-saving tools based on engineered and prescriptive solutions (based on structural engineering principles) for wood structures to resist anticipated lateral and gravity loads.
The material science of wood influences its behavior from harvest through the use phase and beyond. This course will provide an introduction to the material science of wood, wood-moisture relations, and wood anatomy. The types of wood products structural engineers may use in designs, and the standards governing these products are also discussed.
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.
Do you have questions on deck design? Now’s the chance to ask the pros! Renowned deck expert Mike Guertin joins AWC’s Matt Hunter, BCO, and Loren Ross, PE for a panel discussion on all things deck construction. Topics covered will include relevant International Residential Code (IRC) references, AWC’s Design for Code Acceptance 6 (DCA6) – Prescriptive Residential Deck Construction Guide, and other relevant documents. Attendees are asked to come prepared with plenty of questions – in this new panel discussion format we are encouraging participants to engage with our experts and help guide the discussion!
By the end of this learning unit, you will be able to:
Discuss deck load path code requirements and how to satisfy them.
Recognize proper design and detailing of significant components.
Identify best construction practices outlined in DCA6s.
Indicate relevant analysis requirements and code updates.
Funding provided in part by the Softwood Lumber Board.
The Wood Frame Construction Manual (WFCM) for One- and Two-Family Dwellings (ANSI/AWC WFCM-2015) is referenced in the 2015 International Building Code and 2015 International Residential Code. For WFCM wind load calculations, Minimum Design Loads for Buildings and Other Structures (ASCE 7-10) is used. The 2015 WFCM includes design information for buildings located in regions with 700-year return period “three second gust” design wind speeds between 110 and 195 mph. ASD wind pressures for Main Wind-Force Resisting Systems (MWFRS) and Components and Cladding (C&C) are computed. Shear, uplift, and overturning loads are calculated for various building components. WFCM Chapter 2 provides minimum loads for the purpose of establishing specific resistance requirements for buildings within the scope of the document. This presentation will provide background and examples for calculation of these forces which will enable designers and code officials to quickly determine wind design loads for projects.
The addition of cross-laminated timber (CLT) to AWC’s National Design Specification® (NDS®) and upcoming changes in the 2021 International Building Code (IBC) has given engineers exciting design options never before available in US building codes and standards. New provisions were introduced for CLT connection design in the 2015 edition of the NDS and clarified in the 2018 edition. This presentation will provide background on relevant NDS provisions governing structural design of connections for CLT members, present a design example, and discuss fire protection requirements specified in NDS and AWC’s newly updated Technical Report 10 – Calculating the Fire Resistance of Wood Members and Assemblies (TR10).
Even before cross-laminated timber (CLT) was recognized in the 2015 IBC, there was growing interest to use it in the US by designers seeking a sustainable construction product, with a reduced on-site construction time, all while exploiting the natural beauty of wood to provide a pleasing environment to occupants. Not only does CLT meet all of these attributes, but it also provides excellent thermal separation and can be designed to provide up to two hours of fire resistance and even more when protected. This presentation will provide a step-by-step design example of CLT used in a wall application to resist gravity loads as well as design for exposure to fire per the 2018 National Design Specification® (NDS®) for Wood Construction and AWC’s TR-10 – Calculating the Fire Resistance of Wood Members and Assemblies.
This program provides information to assist the Fire Service charged with responsibilities for fire and life safety on a construction site to follow best practices. Builders and building officials will also benefit from the information provided. The purpose is to reduce the risk of injuries and losses from fire. The information applies to the design and planning stages as well as the actual construction phase of buildings. Many hazards can be addressed before they become an issue by adoption of best practices and rigorous code enforcement. The primary focus of this program is on large buildings during construction. Other topics that include demolition, alterations, renovations, repair and maintenance, as well as newly-completed buildings will be discussed. This program provides guidance that is based on compliance with Chapter 33 of the 2021 International Fire Code, Chapter 33 of the 2021 International Building Code, and NFPA Standards 1 and 241.
Funding provided in part by the Softwood Lumber Board.