TY  - JOUR
AU  - Zivanović Misulić, Tatjana
AU  - Radujković, Aleksandra
AU  - Popović, Zdravko
AU  - Hiel, Ksenija
PY  - 2024
UR  - https://omorika.sfb.bg.ac.rs/handle/123456789/1463
AB  - The aim of this paper is to contribute to the classification of structural timber in the ex-YU region into strength-class system through the application of experimentally obtained archive data in order to provide a realistic framework for most commonly used II grade (according to JUS) structural coniferous timber. The analysis of archive data was carried out on a sample of 150 specimens of structural size and based on the set of statistical requirements prescribed by EN standards, taking into account the change in disposition of loading in laboratory testing in the past and now. Statistical procedures prescribed by EN standards are given through calculation steps together with necessary adjustment factors that cover the size and number of specimens. The presented procedures given for structural-size specimens are also applicable to small clear specimens, so that a more comprehensive research and additional new examinations could be conducted with the available archive data simultaneously with the harmonization of the visual classification rules applied in the ex-YU region. The paper emphasises the direct dependence of the consistent application of the visual grading rules required by the relevant EN standard on strength-class system.
PB  - University of Zagreb Faculty of Forestry and Wood Technology
T2  - Drvna industrija
T1  - Timber Strength Grading as Necessary Basis for Structural Design in ex-YU Region: Part 2
EP  - 169
IS  - 2
SP  - 161
VL  - 75
DO  - 10.5552/drvind.2024.0106
UR  - conv_1852
ER  - 

@article{
author = "Zivanović Misulić, Tatjana and Radujković, Aleksandra and Popović, Zdravko and Hiel, Ksenija",
year = "2024",
abstract = "The aim of this paper is to contribute to the classification of structural timber in the ex-YU region into strength-class system through the application of experimentally obtained archive data in order to provide a realistic framework for most commonly used II grade (according to JUS) structural coniferous timber. The analysis of archive data was carried out on a sample of 150 specimens of structural size and based on the set of statistical requirements prescribed by EN standards, taking into account the change in disposition of loading in laboratory testing in the past and now. Statistical procedures prescribed by EN standards are given through calculation steps together with necessary adjustment factors that cover the size and number of specimens. The presented procedures given for structural-size specimens are also applicable to small clear specimens, so that a more comprehensive research and additional new examinations could be conducted with the available archive data simultaneously with the harmonization of the visual classification rules applied in the ex-YU region. The paper emphasises the direct dependence of the consistent application of the visual grading rules required by the relevant EN standard on strength-class system.",
publisher = "University of Zagreb Faculty of Forestry and Wood Technology",
journal = "Drvna industrija",
title = "Timber Strength Grading as Necessary Basis for Structural Design in ex-YU Region: Part 2",
pages = "169-161",
number = "2",
volume = "75",
doi = "10.5552/drvind.2024.0106",
url = "conv_1852"
}

Zivanović Misulić, T., Radujković, A., Popović, Z.,& Hiel, K.. (2024). Timber Strength Grading as Necessary Basis for Structural Design in ex-YU Region: Part 2. in Drvna industrija
University of Zagreb Faculty of Forestry and Wood Technology., 75(2), 161-169.
https://doi.org/10.5552/drvind.2024.0106
conv_1852

Zivanović Misulić T, Radujković A, Popović Z, Hiel K. Timber Strength Grading as Necessary Basis for Structural Design in ex-YU Region: Part 2. in Drvna industrija. 2024;75(2):161-169.
doi:10.5552/drvind.2024.0106
conv_1852 .

Zivanović Misulić, Tatjana, Radujković, Aleksandra, Popović, Zdravko, Hiel, Ksenija, "Timber Strength Grading as Necessary Basis for Structural Design in ex-YU Region: Part 2" in Drvna industrija, 75, no. 2 (2024):161-169,
https://doi.org/10.5552/drvind.2024.0106 .,
conv_1852 .

TY  - JOUR
AU  - Zivanović Misulić, Tatjana
AU  - Radujković, Aleksandra
AU  - Popović, Zdravko
AU  - Hiel, Ksenija
PY  - 2023
UR  - https://omorika.sfb.bg.ac.rs/handle/123456789/1390
AB  - Classification of timber for various commercial purposes is essential for its proper application in order to ensure the reliability and economic use. Visual grading of structural timber is commonly used in a number of EU countries, with different grading national standards optimized for locally available wood. Countries in the ex-YU region are traditional partners in wood trade and had the same standards for visual grading, but in most of the regions these standards are not completely compliant with EN requirements. Consequently, that leads to the fact that the most of regionally available structural timber is not assigned into strength classes, which is the starting point for the limit-state concept in design of timber structures. The aim of this paper is to emphasize the lack of strength classification of structural timber in the ex-YU region, which is a prerequisite for the design of timber structures made by civil engineers. Based on an overview of visual classification types with regional experience in grading, relevant EN standards, and differences in design concepts with possible consequences of grading approach, it can be concluded that "quality" grades and "strength" classes are not easily comparable.
T2  - Drvna industrija
T1  - Timber Strength Grading as Necessary Basis for Structural Design in Ex-YU Region: Part
EP  - 435
IS  - 4
SP  - 427
VL  - 74
DO  - 10.5552/drvind.2023.0105
UR  - conv_1750
ER  - 

@article{
author = "Zivanović Misulić, Tatjana and Radujković, Aleksandra and Popović, Zdravko and Hiel, Ksenija",
year = "2023",
abstract = "Classification of timber for various commercial purposes is essential for its proper application in order to ensure the reliability and economic use. Visual grading of structural timber is commonly used in a number of EU countries, with different grading national standards optimized for locally available wood. Countries in the ex-YU region are traditional partners in wood trade and had the same standards for visual grading, but in most of the regions these standards are not completely compliant with EN requirements. Consequently, that leads to the fact that the most of regionally available structural timber is not assigned into strength classes, which is the starting point for the limit-state concept in design of timber structures. The aim of this paper is to emphasize the lack of strength classification of structural timber in the ex-YU region, which is a prerequisite for the design of timber structures made by civil engineers. Based on an overview of visual classification types with regional experience in grading, relevant EN standards, and differences in design concepts with possible consequences of grading approach, it can be concluded that "quality" grades and "strength" classes are not easily comparable.",
journal = "Drvna industrija",
title = "Timber Strength Grading as Necessary Basis for Structural Design in Ex-YU Region: Part",
pages = "435-427",
number = "4",
volume = "74",
doi = "10.5552/drvind.2023.0105",
url = "conv_1750"
}

Zivanović Misulić, T., Radujković, A., Popović, Z.,& Hiel, K.. (2023). Timber Strength Grading as Necessary Basis for Structural Design in Ex-YU Region: Part. in Drvna industrija, 74(4), 427-435.
https://doi.org/10.5552/drvind.2023.0105
conv_1750

Zivanović Misulić T, Radujković A, Popović Z, Hiel K. Timber Strength Grading as Necessary Basis for Structural Design in Ex-YU Region: Part. in Drvna industrija. 2023;74(4):427-435.
doi:10.5552/drvind.2023.0105
conv_1750 .

Zivanović Misulić, Tatjana, Radujković, Aleksandra, Popović, Zdravko, Hiel, Ksenija, "Timber Strength Grading as Necessary Basis for Structural Design in Ex-YU Region: Part" in Drvna industrija, 74, no. 4 (2023):427-435,
https://doi.org/10.5552/drvind.2023.0105 .,
conv_1750 .