ESTIMATING THE RESIDUAL OPERATING LIFE OF WOODEN STRUCTURES IN HIGH HUMIDITY CONDITIONS

• Main Authors: Aleksandr Chernykh, Dmitry Korolkov, Denis Nizhegorodtsev, Tatiana Kazakevich, Shirali Mamedov
• Format: Article
• Language: English
• Published: Saint Petersburg State University of Architecture and Civil Engineering 2020-03-01
• Series: Architecture and Engineering
• Subjects: residual operating life; regression equations; wooden structures; humidity.
• Online Access: https://aej.spbgasu.ru/index.php/AE/article/view/273/153
• ISSN: 2500-0055; 2500-0055

Introduction: The paper addresses the issue of using regression equations to determine the residual operating life of structures made of wood of various species in high humidity conditions. Purpose of the study: The study is aimed at deriving general equations for calculation of the ultimate life of wooden structures using univariate regression equations for subsequent calculation of the residual operating life (option 1), or equations for immediate calculation of the residual operating life (option 2). Methods: Univariate regression equations are used: linear, logarithmic, seconddegree polynomial, power, exponential, natural exponential, and hyperbolic. Results: The authors derive general equations for calculation of the ultimate life of wooden structures for subsequent calculation of the residual operating life (option 1), and equations for immediate calculation of the residual operating life (option 2), presenting advantages and disadvantages of both options. They propose an algorithm to process the obtained results in case the calculation is carried out using several equations at once. The authors also present an example of calculating the residual operating life using the second option. Discussion: Based on the proposed relationships, it is possible to determine the residual operating life of any wooden structures under any operating conditions.