Flexural Behavior of Laminated Wood Beams Strengthened with Novel Hybrid Composite Systems: An Experimental Study

Q2 Engineering

Journal of the Korean wood science and technology Pub Date : 2023-11-01 DOI:10.5658/wood.2023.51.6.526

Mehmet Faruk Ozdemir, M. Maras, Hasan Basri Yurtseven

{"title":"Flexural Behavior of Laminated Wood Beams Strengthened with Novel Hybrid Composite Systems: An Experimental Study","authors":"Mehmet Faruk Ozdemir, M. Maras, Hasan Basri Yurtseven","doi":"10.5658/wood.2023.51.6.526","DOIUrl":null,"url":null,"abstract":"Wooden structures are widely used, particularly in earthquake zones, owing to their light weight, ease of application, and resistance to the external environment. In this study, we aimed to improve the mechanical properties of laminated timber beams using novel hybrid systems [carbon-fiber-reinforced polymer (CFRP) and wire rope]. Within the scope of this study, it is expected that using wood, which is an environmentally friendly and sustainable building element, will be more economical and safe than the reinforced concrete and steel elements currently used to pass through wide openings. The structural behavior of the hybrid-reinforced laminated timber beams was determined under the loading system. The experimental findings showed that the highest increase in the values of laminated beams reinforced with steel ropes was obtained with the 2N reinforcement, with a maximum load of 38 kN and a displacement of 137 mm. Thus, a load increase of 168% and displacement increase of 275% compared with the reference sample were obtained. Compared with the reference sample, a load increase of 92% and a displacement increase of 14% were obtained. Carbon fabrics placed between the layers with fiber-reinforced polymer (FRP) prevented crack development and provided significant interlayer connections. Consequently, the fabrics placed between the laminated wooden beams with the innovative reinforcement system will not disrupt the aesthetics or reduce the effect of earthquake forces, and significant reductions can be achieved in these sections.","PeriodicalId":17357,"journal":{"name":"Journal of the Korean wood science and technology","volume":"2 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the Korean wood science and technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.5658/wood.2023.51.6.526","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Engineering","Score":null,"Total":0}

引用次数: 0

Abstract

Wooden structures are widely used, particularly in earthquake zones, owing to their light weight, ease of application, and resistance to the external environment. In this study, we aimed to improve the mechanical properties of laminated timber beams using novel hybrid systems [carbon-fiber-reinforced polymer (CFRP) and wire rope]. Within the scope of this study, it is expected that using wood, which is an environmentally friendly and sustainable building element, will be more economical and safe than the reinforced concrete and steel elements currently used to pass through wide openings. The structural behavior of the hybrid-reinforced laminated timber beams was determined under the loading system. The experimental findings showed that the highest increase in the values of laminated beams reinforced with steel ropes was obtained with the 2N reinforcement, with a maximum load of 38 kN and a displacement of 137 mm. Thus, a load increase of 168% and displacement increase of 275% compared with the reference sample were obtained. Compared with the reference sample, a load increase of 92% and a displacement increase of 14% were obtained. Carbon fabrics placed between the layers with fiber-reinforced polymer (FRP) prevented crack development and provided significant interlayer connections. Consequently, the fabrics placed between the laminated wooden beams with the innovative reinforcement system will not disrupt the aesthetics or reduce the effect of earthquake forces, and significant reductions can be achieved in these sections.

查看原文本刊更多论文

用新型混合复合材料系统加固的层压木梁的挠曲行为：实验研究

木结构因其重量轻、易于应用和抵御外部环境的能力而被广泛使用，尤其是在地震灾区。在这项研究中，我们旨在利用新型混合系统（碳纤维增强聚合物（CFRP）和钢丝绳）改善层压木梁的机械性能。在本研究的范围内，预计使用木材这种环境友好型和可持续发展的建筑构件，将比目前用于通过大开口的钢筋混凝土和钢构件更加经济和安全。在加载系统下，对混合加固层压木梁的结构行为进行了测定。实验结果表明，用钢绳加固的层叠木梁在 2N 加固时，荷载增加值最高，最大荷载为 38 kN，位移为 137 mm。因此，与参考样本相比，荷载增加了 168%，位移增加了 275%。与参考样本相比，载荷增加了 92%，位移增加了 14%。放置在纤维增强聚合物（FRP）层之间的碳纤维织物可防止裂纹发展，并提供显著的层间连接。因此，在采用创新加固系统的层压木梁之间铺设碳纤维织物不会破坏美观，也不会降低地震力的影响，而且可以显著降低这些部分的地震力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of the Korean wood science and technology Materials Science-Materials Science (miscellaneous)

CiteScore

5.20

自引率

0.00%

发文量

期刊介绍： The Journal of the Korean Wood Science and Technology (JKWST) launched in 1973 as an official publication of the Korean Society of Wood Science and Technology has been served as a core of knowledges on wood science and technology. The Journal acts as a medium for the exchange of research in the area of science and technology related to wood, and publishes results on the biology, chemistry, physics and technology of wood and wood-based products. Research results about applied sciences of wood-based materials are also welcome. The Journal is published bimonthly, and printing six issues per year. Supplemental or special issues are published occasionally. The abbreviated and official title of the journal is ''J. Korean Wood Sci. Technol.''. All submitted manuscripts written in Korean or English are peer-reviewed by more than two reviewers. The title, abstract, acknowledgement, references, and captions of figures and tables should be provided in English for all submitted manuscripts.