Effect of Thickness and Lamina Species Combination on Bending and Shear Properties of Cross Laminated Timber (CLT) Panel

被引：0

作者：

Rahmawati, Kundari ^{[1
]}

Basuki, Achmad ^{[1
]}

Saifullah, Halwan Alfisa ^{[1
]}

Anshari, Buan ^{[2
]}

Saharso, Tafidah Khairiyyah ^{[1
]}

机构：

[1] Department of Civil Engineering, Faculty of Engineering, Sebelas Maret University, Surakarta

[2] Department of Civil Engineering, Faculty of Engineering, Mataram University, Mataram

来源：

Journal of the Korean Wood Science and Technology | 2025年 / 53卷 / 03期

关键词：

bending stiffness; cross-laminated timber (CLT); effect thickness; lamina species; shear strength;

D O I：

10.5658/WOOD.2025.53.3.207

中图分类号：

学科分类号：

摘要：

Cross-laminated timber (CLT) is an innovative engineered timber material used in the research and development phase in Indonesia. Therefore, the characteristics of CLT based on local timber species must be investigated in depth. The purpose of this study was to investigate the effects of the thickness and lamina species combination of local timber on the bending stiffness and shear stress of CLT. CLT with two different thicknesses of 51 mm (17/17/17 mm) and 67 mm (25/17/25 mm) and two different lamina configurations of acacia CLT and a combination of two species Acacia mangium (acacia) and Melia azedarach (mindi) became a hybrid CLT. An increase in the acacia CLT thickness had a positive effect on the bending stiffness. The bending stiffness of acacia CLT with a thickness of 67 mm was 3.77 times higher than that of acacia CLT with a thickness of 51 mm, whereas in hybrid CLT, it increased by 3.38 times. In terms of shear stress, the effect of thickness was not significant on Acacia CLT, as it showed a decrease of 0.01 MPa, whereas hybrid CLT experienced a reduction of 0.29 MPa, which is approximately 19.71%. The bending stiffness test results on CLT with uniform lamina thickness can be predicted using popular theoretical approaches, such as Shear analogy, Gamma theory, and Timoshenko theory. Meanwhile, the prediction of the shear stress using the Shear analogy was the closest to the test results for the entire CLT configuration. © 2025, Korean Society of Wood Science Technology. All rights reserved.

引用

页码：207 / 224

页数：17

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