Innovative Engineered Bamboo-Timber Composite Materials

A new concept of bio-based prestress technology with experimental Proof-of-Concept on Bamboo-Timber composite beams (2023)
Journal Article
Zhang, H., Shen, M., Deng, Y., Andras, P., Sukontasukkul, P., Yuen, T. Y. P., Wong, S. H., Limkatanyu, S., Singleton, I., & Hansapinyo, C. (2023). A new concept of bio-based prestress technology with experimental Proof-of-Concept on Bamboo-Timber composite beams. Construction and Building Materials, 402, Article 132991. https://doi.org/10.1016/j.conbuildmat.2023.132991

This paper presents a pioneering experimental proof-of-concept study to validate a novel concept of prestress technology that used only pure bio-based composite materials while achieved consistent prestressed stress distribution within the structure... Read More about A new concept of bio-based prestress technology with experimental Proof-of-Concept on Bamboo-Timber composite beams.

Experimental investigation of mechanically laminated straight or curved-and-tapered bamboo-concrete T-beams (2023)
Journal Article
Deng, Y., Hao, Y., Mohamed, A., Wong, S. H., Tang, Y., Yuen, T. Y., Sukontasukkul, P., Shen, M., Fernando, N., Saint, R., & Zhang, H. (2023). Experimental investigation of mechanically laminated straight or curved-and-tapered bamboo-concrete T-beams. Engineering Structures, 283, Article 115896. https://doi.org/10.1016/j.engstruct.2023.115896

This study echoes the rising demand for bio-based material in concrete composite structures in the race to accelerate carbon neutrality in construction. Noticing that most previous studies are focused on straight timber or engineered bamboo-to-concre... Read More about Experimental investigation of mechanically laminated straight or curved-and-tapered bamboo-concrete T-beams.

An Eigendecomposition-based and Mesh-sensitivity Reduced Constitutive Model for Nonlinear Analysis of Concrete Structures under Non-proportional Cyclic Loading (2021)
Journal Article
Yuen, T. Y., Wen, T.-H., Hung, C.-C., Zhang, H., Huy Pham, P. A., & Deng, Y. (2022). An Eigendecomposition-based and Mesh-sensitivity Reduced Constitutive Model for Nonlinear Analysis of Concrete Structures under Non-proportional Cyclic Loading. Journal of Building Engineering, 47, Article 103875. https://doi.org/10.1016/j.jobe.2021.103875

Emerging 3D printed concrete techniques has raised numerous possibilities in contemporary architectural creations that are often beyond the scope of prevailing structural design standards. Rigorous, three-dimensional, and nonlinear finite element ana... Read More about An Eigendecomposition-based and Mesh-sensitivity Reduced Constitutive Model for Nonlinear Analysis of Concrete Structures under Non-proportional Cyclic Loading.

Study on Crack Width and Crack Resistance of Eccentrically Tensioned Steel-Reinforced Concrete Members Prestressed by CFRP Tendons (2021)
Journal Article
Deng, Y., Gui, J., Zhang, H., Taliercio, A., Zhang, P., Wong, S. H. F., Sukontasukkul, P., Khan, A., Li, L., Tang, Y., & Chen, X. (2022). Study on Crack Width and Crack Resistance of Eccentrically Tensioned Steel-Reinforced Concrete Members Prestressed by CFRP Tendons. Engineering Structures, 252, Article 113651. https://doi.org/10.1016/j.engstruct.2021.113651

In recent decades, steel-reinforced concrete (SRC) members under eccentrical tension have been adopted more frequently in modern buildings due to the constraints of more complex structural design/detailing that accompanying contemporary architectural... Read More about Study on Crack Width and Crack Resistance of Eccentrically Tensioned Steel-Reinforced Concrete Members Prestressed by CFRP Tendons.

Verification of the Photogrammetric Approach on the Torsion Test Method for Timber Beams (2021)
Journal Article
Mohamed, A., Uheida, K., Quan, Y., & Zhang, H. (2022). Verification of the Photogrammetric Approach on the Torsion Test Method for Timber Beams. International Wood Products Journal, 13(1), 3-14. https://doi.org/10.1080/20426445.2021.1983690

The photogrammetric approach was proposed in this study to evaluate torsional behaviour of glulam timber beams during the torsion test. The main objectives of the experimental work were to investigate the applicability of the photogrammetric approach... Read More about Verification of the Photogrammetric Approach on the Torsion Test Method for Timber Beams.

Performance study on mounting system for displacement transducer in mechanical tests of timber samples using photogrammetry method (2021)
Journal Article
Mohamed, A., Zhang, H., Deng, Y., Lehmann, M., Sigrist, C., Uheida, K., Zheng, Y., Bahadori-Jahromi, A., Shahidan, S., & Caudoux, R. (2022). Performance study on mounting system for displacement transducer in mechanical tests of timber samples using photogrammetry method. Wood Material Science and Engineering, 17(6), 937-953. https://doi.org/10.1080/17480272.2021.1978107

This paper presents a unique study to reveal the effect of the mounting system of the linear variable differential transformer (LVDT) on the mechanical property tests of timber materials. This effect has been overlooked in the past but proven to be s... Read More about Performance study on mounting system for displacement transducer in mechanical tests of timber samples using photogrammetry method.

Determining equivalent-sectional shear modulus in torsion tests for laminated glass beams using photogrammetry method (2021)
Journal Article
Uheida, K., Deng, Y., Zhang, H., Galuppi, L., Gao, J., Li, X., Huang, S., Qin, X., Wong, S. H. F., Guo, J., Zhang, G., & Mohamed, A. (2021). Determining equivalent-sectional shear modulus in torsion tests for laminated glass beams using photogrammetry method. Composite Structures, 276, Article 114572. https://doi.org/10.1016/j.compstruct.2021.114572

This paper proposes a concise concept for quantifying the shear/torsional stiffness of the laminated glass beams experimentally by introducing the Equivalent-Sectional Shear Modulus (ESSM), that is directly measured from the torque and sectional-rota... Read More about Determining equivalent-sectional shear modulus in torsion tests for laminated glass beams using photogrammetry method.

Effect of Concentrated Butt-Joints on Flexural Properties of Laminated Bamboo-Timber Flitch Beams (2021)
Journal Article
Zhang, H., Gharavi, N., Wong, S. H. F., Deng, Y., Bahadori-Jahromi, A., Limkatanyu, S., Qiao, Y., & Kuang, J. (2022). Effect of Concentrated Butt-Joints on Flexural Properties of Laminated Bamboo-Timber Flitch Beams. Journal of Sandwich Structures and Materials, 24(2), 1226-1244. https://doi.org/10.1177/10996362211040103

This paper presents the experimental and analytical studies to investigate the effect of concentrated butt-joints on the flexural properties of laminated bamboo-timber flitch beam (BTFB, or bio-flitch beam). The experimental results reveal that the c... Read More about Effect of Concentrated Butt-Joints on Flexural Properties of Laminated Bamboo-Timber Flitch Beams.

Applicability of the Torsion Test and Photogrammetric Approach on Structural Timber Beams (2021)
Journal Article
Mohamed, A., Uheida, K., Quan, Y., & Zhang, H. (2021). Applicability of the Torsion Test and Photogrammetric Approach on Structural Timber Beams. International Wood Products Journal, 12(3), 206-217. https://doi.org/10.1080/20426445.2021.1952047

The torsion test is recommended as a standard approach to determine the shear modulus of structural-size timber and glulam beams. However, there is a difficulty in measuring the rotational deformations of timber joists. A stereo camera system and pho... Read More about Applicability of the Torsion Test and Photogrammetric Approach on Structural Timber Beams.

Photogrammetric Evaluation of Glulam Timber Shear Modulus Using Torsion Test Method and Dual Stereo Vision System (2021)
Journal Article
Mohamed, A., Deng, Y., Zhang, H., Wong, S. H. F., Uheida, K., Zhang, Y., Lehmann, M., & Quan, Y. (2021). Photogrammetric Evaluation of Glulam Timber Shear Modulus Using Torsion Test Method and Dual Stereo Vision System. European Journal of Wood and Wood Products, 79, 1209-1223. https://doi.org/10.1007/s00107-021-01729-8

The shear modulus of timber and timber-based composite materials is a fundamental me-chanical property which is used in the design of timber and engineered wood products. The problem of experimentally determining appropriate values of shear modulus f... Read More about Photogrammetric Evaluation of Glulam Timber Shear Modulus Using Torsion Test Method and Dual Stereo Vision System.