WOOD AS A STRUCTURAL MATERIAL: CURRENT STATE OF THE ISSUE, PROBLEMS, PROSPECTS
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Abstract
This document provides a systematic overview of the latest developments in the field of bendable and non-centrally compressed elements and composite elements made of wood and concrete, focusing on key topics including mechanical characteristics, molding processes, fire resistance, interfacial mechanisms and stability assessment. As a result of the analysis, it was determined that: glued wood, due to its multilayer structure, good flexibility and controlled surface behavior, has clear advantages when exposed to fire, bending and composite systems, although the stability of the surface at high temperatures and the mechanisms of prolonged aging require further study. Progress in the field of flexible wood components, driven by advances in hydrothermal softening, local compaction, material modification, and cross-sectional innovations, however, challenges remain related to molding stability and the continuity of the manufacturing process for large-sized parts. Wood–concrete composite structures exhibit excellent ductility, energy dissipation, and seismic performance, but uncertainty remains about the long-term durability of the joints and behavior under environmental conditions. In general, engineered wood materials are evolving from the study of individual properties to the development of a multiscale paradigm of “material-interface–structure–environment”. Future work should strengthen the understanding of mechanics, multiscale modeling, process industrialization, and sustainability research to create high-performance wooden structural systems.
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