In the 2024 International Building Code (IBC) and 2024 International Fire Code (IFC), several changes were made to mass timber provisions, including the following:
…In the 2024 International Building Code (IBC) and 2024 International Fire Code (IFC), several changes were made to mass timber provisions, including the following:
…The 2022 TMS 402 Building Code Requirements for Masonry Structures added Appendix D for glass fiber reinforced polymer (GFRP) reinforced masonry. GFRP reinforcement is non-corrosive, non-conductive, and not thermally conductive, so there is no thermal bridging. Due to these properties, GFRP reinforcement is advantageous in the masonry near electromagnetic equipment, such as MRI rooms in hospitals and masonry walls near high-voltage cables and transformers in substations. Other applications include walls exposed to severe environments, such as in coastal construction, seawalls, and chemical plants. The lightweight nature of the GFRP bar, being one-fourth the steel weight, allows for production efficiencies for the contractor and health and safety benefits to workers.
…Revised Component and Cladding (C&C) wind load provisions in ASCE 7-22, Minimum Design Loads and Associated Criteria for Buildings and Other Structures, produce in most cases either the same or slightly lower pressures than would occur under the prior edition while also preserving the extensive wind tunnel testing basis of the ASCE 7-16 C&C wind provisions.
…Secondary drainage system rain loads have been updated in the 2021 International Building Code® (IBC) to be consistent with ASCE 7-16, Minimum Design Loads and Associated Criteria for Buildings and Other Structures. The following text shows the specific change in the 2021 IBC. Strike-through indicates deleted text and underlined denotes new text.
…States and municipalities eager to allow taller mass timber buildings are considering adopting the mass timber provisions in the 2021 International Building Code (IBC). Many have recently finished the adoption of the 2018 I-codes and would otherwise wait several more years to incorporate construction types IV-A, IV-B, and IV-C into their building codes to allow mass timber buildings up to 18 stories tall.
…With the adoption of the 2021 International Building Code (IBC), municipalities across the United States will have the ability to build wood buildings taller than ever before. With three new types of construction, Type IV-A, IV-B, and IV-C, mass timber buildings will allow design professionals to erect wood buildings up to 18 stories in height. Figure 1 represents the maximum permitted number of stories under the Type IV-A code change. While these structures are constructed from wood, they are not conventional light-frame construction, and the structural behavior and fire resistance of mass timber structures are not comparable to light-frame construction. …
The American Concrete Institute (ACI) published ACI 318-19, Building Code Requirements for Structural Concrete, in June 2019. This edition of ACI 318 is the first to be published since the format of ACI 318 was reorganized in 2014. It includes new and updated code provisions as well as color illustrations and interactive links in its online version. …
The 2021 International Building Code (IBC) will introduce three new types of construction for fire-resistance-rated mass timber structures, the first significant addition to the types of construction in many years. Although still considered combustible construction, the structural frames of these buildings are designed for integrity in the unlikely event of fire exposure. …