Guest Editors
Huifeng Yang, Professor, Nanjing Tech University, China.
Professor Huifeng Yang is the Vice Director of Timber Structure Research Center in Nanjing Tech University, China. He works as a teaching and research staff in College of Civil Engineering, Nanjing Tech University, since 2007. Also he was a visiting scholar of Lund University from March, 2014 to August, 2015. His main research interests are innovative structural components (including members, joints and connections) for timber structures, as well as for hybrid timber structures. He has published more than 60 peer-reviewed academic papers, authorized 5 invention patents, and also designed several mass timber structures and bridges in China, including a 76 m span timber bridge that was built in 2012. He has received 2 awards for his scientific achievements from the government. He is the member of both The Architectural Society of China and China Association for Engineering Construction Standardization. He is one of the key committee members for developing the ‘General Code for Timber Structures (GB55005)’, ‘Technical Standard for Multi-story and High Rise Timber Buildings (GB/T 51226)’, and ‘Technical Code for Prefabricated Timber Buildings (GB/T 51233)’, et al.
Zheng Li, Associate Professor, Tongji University, China.
Dr. Zheng Li specializes in the area of timber engineering and earthquake engineering. Specifically, he is working on the development of earthquake resistant / resilient structures and reliability analysis of timber structures. Dr. Li is currently an associate professor on the faculty of College of Civil Engineering at Tongji University. He was selected as the recipient of Shanghai rising star program in 2021, Chenguang scholar of Shanghai in 2017, and Shanghai sailing program in 2016. He is the author of three technical books and over 100 technical publications in academic journals.
Summary
To meet the low-carbon demands and promote sustainable development in structural engineering, it is quite important to develop and investigate the innovative bio-based buildings and structures. Bio-based composite/hybrid structure which primarily uses renewable materials or components has attracted more and more attention in recent decades.
This special issue, Bio-based Composite/Hybrid Structures and Components, will cover the research topics and works that are (not only those) focused on the following aspects:
• Timber-concrete composite structures.
• Bamboo-concrete composite structures.
• Hybrid steel-timber structures.
• FRP/steel reinforced structural timber/bamboo elements.
• Mixed-species engineered wood elements.
• Hybrid joints for bio-based structures.
Keywords
Bio-based materials; Composite structures; Hybrid structures; Hybrid joints; Reinforced timber elements; Reinforced bamboo elements; Timber-concrete composites; Bamboo-concrete composites; Hybrid steel-timber structures; Mixed-species; Structural behaviour; Seismic behaviour; Experimental; Numerical; Analytical
Published Papers
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Open Access
ARTICLE
Evaluation of Novel Chitosan Based Composites Coating on Wettability for Pure Titanium Implants
Qahtan A. Hamad, Hanaa A. Al-Kaisy, Mohanad N. Al-Shroofy, Noor K. Faheed
Journal of Renewable Materials, Vol.11, No.4, pp. 1601-1612, 2023, DOI:10.32604/jrm.2023.023213
（This article belongs to this Special Issue:
Bio-based Composite/Hybrid Structures and Components)
Abstract This work aims to prepare chitosan (CS)-based coated layers, CS (10 wt% nanosilver/90 wt% CS, 10 wt% biotin/90
wt% CS, and 5 wt% nanosilver–5 wt% biotin)/90 wt% CS coatings are prepared, onto pure Ti substrate. The surface
morphology of the novel CS composite coating was studied using field emission scanning electron microscopy,
atomic force microscopy (AFM), Fourier transforms infrared (FTIR) and wettability test. Results show that the
addition of (biotin, nanosilver) 5 Vol.% improves the properties of composite materials. Using different particles’
scale size aid in improving the combinations in the alginate, producing a dual effect on film properties. Coating…
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Graphic Abstract
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Open Access
ARTICLE
Extraction and Characterization of Litopenaeus vannamei’s Shell as Potential Sources of Chitosan Biopolymers
Che Engku Noramalina Che Engku Chik, Amyra Suryatie Kamaruzzan, Ahmad Ideris Abdul Rahim, Fathurrahman Lananan, Azizah Endut, Siti Aslamyah, Nor Azman Kasan
Journal of Renewable Materials, Vol.11, No.3, pp. 1181-1197, 2023, DOI:10.32604/jrm.2023.022755
（This article belongs to this Special Issue:
Bio-based Composite/Hybrid Structures and Components)
Abstract Chitin is the second most abundant polysaccharide, produced mainly as an industrial waste stream during crustacean processing. Chitin can be derived into chitosan through the deacetylation process. Conversion of shrimp
waste into chitosan via the deacetylation process could be considered a practical approach for shell waste remediation. In this study, chitosan’s physicochemical characteristics extracted from two types of Pacific white leg
shrimp,
L. vannamei’s shell (i.e., rough and smooth), were compared with commercial chitosan. The yield, moisture, ash, solubility, water and fat binding capacity were measured. The degree of deacetylation (DDA) was calculated using FTIR, and their chemical Structure was…
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Graphic Abstract
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Open Access
ARTICLE
An Experimental Study of Composite Columns Filled with Eucalyptus nitens Timber under Axial Compression
Yingyao Cheng, Xudong Chen, Huaming An, Huimin Wang, Kai Tao
Journal of Renewable Materials, Vol.11, No.2, pp. 825-836, 2023, DOI:10.32604/jrm.2022.022599
（This article belongs to this Special Issue:
Bio-based Composite/Hybrid Structures and Components)
Abstract Eucalyptus nitens (
E. nitens) has been much used for producing paper but also shows promise for structural applications. In this study, static compressive tests were undertaken to examine its suitability to be used in an innovative composite column. The composite column was comprised of a rectangular steel tube with
E. nitens timber
infill. The nonlinear compressive behaviour of the composite column filled with
E. nitens wood for both dry and
wet conditions was examined. The same tests on rectangular steel tubes and bare dry and wet
E. nitens samples
were also undertaken as a comparison. For samples with different conditions,…
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Graphic Abstract
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Open Access
ARTICLE
Experimental and Numerical Study on Progressive Collapse Analysis of a Glulam Frame Structure: I. Side Column Exposed to Fire
Xiaowu Cheng, Xinyan Tao, Lu Wang
Journal of Renewable Materials, Vol.11, No.2, pp. 905-920, 2023, DOI:10.32604/jrm.2022.023196
（This article belongs to this Special Issue:
Bio-based Composite/Hybrid Structures and Components)
Abstract This paper presents experimental and numerical investigations on progressive collapse behavior of a two-story glulam frame when the side column is exposed to ISO834 standard fire. The collapse mechanism initiated by fire is identified. The experimental results show that the progressive collapse of a glulam frame could be described for three stages, namely bending effect stage, catenary effect stage and failure stage, respectively. These stages are discussed in detail to understand the structural behavior before and during collapse. It is demonstrated that the entire frame slopes towards the side of the heated column, and the “overturning” collapse occurs eventually. The…
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Open Access
ARTICLE
Shear Behaviors of Steel-Plate Connections for Timber-Concrete Composite Beams with Prefabricated Concrete Slabs
Benkai Shi, Bowen Huang, Huifeng Yang, Yongqing Dai, Sijian Chen
Journal of Renewable Materials, Vol.11, No.1, pp. 349-361, 2023, DOI:10.32604/jrm.2023.022343
（This article belongs to this Special Issue:
Bio-based Composite/Hybrid Structures and Components)
Abstract To promote the development of timber-concrete composite (TCC) structures, it is necessary to propose the assembly-type connections with high assembly efficiency and shear performances. This article presented the experimental results of the innovative steel-plate connections for TCC beams using prefabricated concrete slabs. The steel-plate connections consisted of the screws and the steel-plates. The steel-plates were partly embedded in the concrete slabs. The concrete slabs and the timber beams were connected by screws through the steel-plates. The parameters researched in this article included screw number, angle steel as the reinforcement for anchoring, and shallow notches on the timber surface to restrict…
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Open Access
ARTICLE
Experimental Study of Mode-I and Mode-II Interlaminar Fracture Characteristics of Poplar LVL
Zhongping Xiao, Chen Li, Biqing Shu, Shukai Tang, Xinghuan Yang, Yan Liu
Journal of Renewable Materials, Vol.11, No.1, pp. 245-255, 2023, DOI:10.32604/jrm.2023.020751
（This article belongs to this Special Issue:
Bio-based Composite/Hybrid Structures and Components)
Abstract Fracture is a common failure form of poplar laminated veneer lumber (LVL). In the present work, we performed an experimental study on the mode-I along-grain interlaminar fracture, mode-I cross-grain interlaminar fracture, and mode-II interlaminar fracture of poplar LVL. We investigated stress mechanisms, failure modes, and fracture toughness values of the different fracture types. The experimental results revealed that the crack in the mode-I along-grain interlaminar fracture specimen propagated along the prefabricated crack direction, and the crack tip broke. The mode-I cross-grain interlaminar fracture specimen had cracks in the vertical direction near the prefabricated crack. In the mode-II interlaminar fracture specimen,…
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Open Access
REVIEW
Phytoremediation of Rare Tailings-Contaminated Soil
Min Huang, Zhirong Liu, Xiang Li
Journal of Renewable Materials, Vol.10, No.12, pp. 3351-3372, 2022, DOI:10.32604/jrm.2022.022393
（This article belongs to this Special Issue:
Bio-based Composite/Hybrid Structures and Components)
Abstract In order to achieve the goal of circular economy and sustainable development of ecological environment, it is important
to separate and recover associated elements from rare mineral resources. Compared with traditional physical and chemical remediation methods of contaminated soil, phytoremediation is regarded as the most promising green in-situ
restoration technology. The purpose of this review is to effectively alleviate the environmental problems caused by rare
tailings contaminated soil through phytoremediation and realize the recovery of uranium-thorium, rare earth elements
(REEs) and tantalum-niobium. This review took rare tailings with uranium-thorium, REEs, tantalum-niobium in China
as the research object, then the background,…
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Open Access
ARTICLE
Experimental Evaluation of Flexural Behavior of Stress Laminated Timber Decks
Qingguo Ben, Congcong Zhang, Benkai Shi, Huifeng Yang
Journal of Renewable Materials, Vol.10, No.12, pp. 3599-3610, 2022, DOI:10.32604/jrm.2022.022344
（This article belongs to this Special Issue:
Bio-based Composite/Hybrid Structures and Components)
Abstract Stress laminated timber (SLT) deck is assembled using timber (lumber or glulam) components placed side by side
and stressed together, which has the advantages of easy prefabrication and good cost performance. This work presented an experimental investigation of bending tests performed on SLT slabs. Several parameters, including prestress levels, distance of pre-stressing bars, and the existence of self-tapping screw (STS) reinforcement, were
taken into consideration. To reinforce the compressive property of timber perpendicular to the grain, the STSs
were placed under the anchor plate of the pre-stressed bars. The experimental results were analyzed and discussed
in terms of failure modes,…
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Graphic Abstract
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