E3S Web Conf.
Volume 244, 2021XXII International Scientific Conference Energy Management of Municipal Facilities and Sustainable Energy Technologies (EMMFT-2020)
|Number of page(s)||10|
|Section||Use and Conservation of Natural Resources|
|Published online||19 March 2021|
Estimation of the residual resource of wooden structures by changing geometric parameters of the cross-section
1 Saint Petersburg State University of Architecture and Civil Engineering, 4 2nd Krasnoarmeyskaya St., St. Petersburg, 190005, Russian Federation
2 Peter the Great St.Petersburg Polytechnic University, 29 Politechnicheskaya St., St. Petersburg, 195251, Russian Federation
3 Moscow State University of Civil Engineering, 26, Yaroslavskoye shosse, 129337, Moscow, Russia
* Corresponding author: firstname.lastname@example.org
In this article, the authors propose a method for assessing the residual resource by changing the geometric parameters of wooden structures. A general formula for estimating the maximum service life is presented. Then a number of special cases are considered when calculating the ultimate service life for the first group of limiting states. As a result, formulas were derived for calculating the ultimate service life for various design cases: centrally tensioned, centrally compressed, bending members, members subject to an axial force with bending. The author considered the determination of the rate of change in geometric parameters at the macrolevel (visually observed changes) and microscopic (microcracks, breaks of bonds between atoms). Formulas for determining the rate of change of geometric parameters at the macro and micro levels are proposed. The advantages and disadvantages of this method are presented. The scope of its application is indicated.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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