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Moisture variation impacts on vertical displacement of tall mass-timber buildings : case study: UBC Brock Commons Tallwood House

Rezai Sabzevar, Arezoo

University of British Columbia

In the contemporary construction landscape, the integration of wood materials in building structures, particularly in the form of Tall wooden houses, marks an innovative stride towards sustainable and environmentally conscious urban development. Timber, with its intrinsic strengths and versatile attributes, stands at the forefront of this architectural transition. However, as timber structures rise in prominence, the multifaceted interaction of wood with environmental factors becomes an essential focus. Notably, the impact of moisture variation on timber elements emerges as a critical consideration due to its potential to instigate deleterious effects on both the mechanical and physical properties of wood. This research embarks on a comprehensive exploration of the intricate nexus between moisture variation and the behavior of timber elements in UBC Brock Commons Tallwood House. Through an interdisciplinary lens encompassing engineering and material science, the study delves into the time-dependent phenomena of creep and viscoelastic deformation in the context of varying moisture conditions. The intricate interplay between environmental factors, including temperature, humidity, and rainfall, is examined through both theoretical formulations and empirical investigations. The focal point of inquiry lies in assessing the vertical displacement of Glulam columns within tall wood houses. The thesis emphasizes the significance of moisture variation in influencing the vertical displacement of the structure. The objective of this study is to ascertain whether direct exposure to rain during the construction phase can induce significant vertical displacement, warranting consideration during the design phase, or if any observed displacement is negligible. With tall wood houses poised to reshape urban landscapes, this research offers valuable insights that extend beyond construction engineering to address broader concerns regarding sustainable urban development. Understanding the implications of severe moisture variation during construction is crucial information for designers and engineers to ensure the reliability of buildings. Furthermore, the resulting model from this research can serve as a tool for future building monitoring efforts. By elucidating the complex dynamics between moisture variation, timber behavior, and tall wood structures, this study enriches the foundational knowledge necessary for advancing resilient and innovative architectural practices.

Text

2024-04-29

Attribution-NonCommercial-NoDerivatives 4.0 International

http://hdl.handle.net/2429/88101

Forestry

University of British Columbia

UBCV

http://creativecommons.org/licenses/by-nc-nd/4.0/