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Fire Protection Construction Sequencing in Mass Timber Buildings for Fire Safety

https://research.thinkwood.com/en/permalink/catalogue2787
Topic
Fire
Application
Wood Building Systems
Organization
TallWood Design Institute
Oregon State University
Country of Publication
United States
Application
Wood Building Systems
Topic
Fire
Keywords
Passive Fire Protection
Construction Sequencing
Fire Spread
Fire Dynamics
Research Status
In Progress
Notes
Project contact is Yelda Turkan, Oregon State University
Summary
Over the past decade, fires have caused significant losses, both financial and through loss of lives, in timber buildings during construction (USFA 2020). Buildings under construction or in development are largely unprotected as they are not yet equipped with active fire protection systems (sprinklers), and for those buildings that are not designed for exposed timber, multiple floors are left exposed at a time as the fire protection trade trails in schedule behind the erection of the mass timber structural elements. With the addition of Type IVA, B, and C in the 2021 International Building Code (IBC), the IBC also adopted stricter requirements for mass timber buildings under construction. Under-construction mass timber buildings require that the mass timber is protected with noncombustible material within four levels of any construction more than six stories above grade. However, limited research has occurred to demonstrate that this construction sequence results in the optimal balance of safety, property loss, and cost. The goals of this project are to: (a) develop a methodology to couple multiple commonly-used computational tools to evaluate the sequence of installation of passive fire protection in mass timber buildings under construction fire scenarios, (b) develop an analytical framework that can be implemented by industry to evaluate the risk and impact of fire protection construction sequencing on a job site while balancing property loss, cost, and life safety of construction workers due to a construction fire, and (c) identify knowledge gaps in fire dynamics in timber buildings that would increase the accuracy of predicting fire spread in mass timber buildings under construction.
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