Experimental Study on the Bending Behavior of Steel‐Wood Composite Beams

Duan, Shaowei; Zhou, Wentao; Liu, Xinglong; Yuan, Jiugang; Wang, Zhifeng

doi:10.1155/2021/1315849

Cited by 7 publications

(3 citation statements)

References 5 publications

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“…Thus, timber's strength reduction coefficient γ t = 0.95 is proposed [67]. Then, according to the superposition principle [68,69], the ultimate flexural bearing capacity of the normal section of the composite beam is obtained as Formula (1):…”

Section: Calculation Methods For Flexural Bearing Capacitymentioning

confidence: 99%

Bending Properties of Cold-Formed Thin-Walled Steel/Fast-Growing Timber Composite I-Beams

Chen,

Liu

et al. 2024

Forests

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A cold-formed, thin-walled steel/fast-growing timber composite system has recently been presented for low-rise buildings. It aims to increase the use of fast-growing wood as a green building material in structures, thus contributing to the transformation of traditional buildings. This study proposed a composite I-beam combined with fast-growing radiata pine and cold-formed thin-walled U-shaped steel. A four-point bending test was used to measure the bending properties of steel–timber composite I-beams under various connection methods. Based on experimental results, this study examined the specimen’s failure mechanism, mechanical properties, and strain development. In addition, a method for calculating flexural bearing capacity based on the superposition principle and transformed section method was suggested. It is evident from the results that fast-growing timber and cold-formed thin-walled steel can have significant composite effects. Different connecting methods significantly impact beams’ failure mode, stiffness, and bearing capacity. Furthermore, the theoretical method for calculating the flexural bearing capacity of composite beams differs from the test value by less than 10%. This paper’s research encourages the applications of fast-growing wood as light residential components, and it serves as a reference for the development, production, and engineering of steel–timber composite structural systems.

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Section: Calculation Methods For Flexural Bearing Capacitymentioning

confidence: 99%

Bending Properties of Cold-Formed Thin-Walled Steel/Fast-Growing Timber Composite I-Beams

Chen,

Liu

et al. 2024

Forests

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“…Steel tendons can be used to strengthen newly designed beams and renovate existing ones [ 9 , 10 , 11 ]. An attractive solution, in which wood is instead a cladding for H-profile steel, was proposed by Duan and the team [ 12 ].…”

Section: Introductionmentioning

confidence: 99%

GL Beams Reinforced with Plywood in the Outer Layer

et al. 2022

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Glulam beams are increasingly used in the construction industry because of their high strength and the possibility of using round timber with smaller cross-sections. The load-bearing capacity of beams is strongly related to the quality of the outer layers and, in the case of wood, especially the tension zones. For these reasons, this study decided to replace the outer lamella with tensile plywood. The produced beams were subjected to static bending strength and modulus of elasticity evaluation. It was shown that the best static bending strength values were obtained for beams containing plywood in the tension layer. However, the change in structure in the tension zone of beams made of glued laminated timber results not only in an increase in the load capacity of elements produced in this way but also in a decrease in the range/range of the obtained results of bending strength. This way of modifying the construction of glued laminated beams allows a more rational use of available pine timber.

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“…Chen et al [26] experimentally investigated the flexural performance of wood-bamboo composite I-beams to enhance the structural performance of I-beams. Duan et al [27] proposed a steel-wood combination beam with H-shaped steel beam webs pasted onto timber, and the flexural load capacities of three hot-rolled H-arch combination beams and one pure steel beam were tested. Inspired by the natural bamboo structures with high stiffness and stability when subjected to lateral loads, Zhang et al [28] conducted flexural tests on a combined structure with hollow sections and internal stiffener ribs.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Studies on Repaired Wooden Beam of Traditional Buildings in Huizhou Region, China

Jiang

Sun

2022

Buildings

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In this study, three different repair methods are proposed for the common broken parts of traditional wooden beams. Four wooden beams without initial damage and six repaired beams in a planar wooden frame are tested and numerical simulated. The test phenomena, bearing capacity, and stiffness of all the wooden beams are analyzed. Compared with the wooden beams without initial damage, the bearing capacity of the beams with upper inlay repair, upper core repair, partial tenon repair, and lower core repair increases by 38.93%, 13.06%, 5.08%, and 3.94%, respectively. Furthermore, the experimental and numerical results indicate that the upper and lower parts of the wooden beam with initial damage can be more effectively repaired by the inlay and core methods, respectively. When the tenon is partially damaged, the mechanical properties of the wooden beam are improved after repair. The simulation of lower inlay repair shows that the bearing capacity of the wooden beam is inversely proportional to the repair height and the distance between the repair position and the span. Based on the experimental results, a dovetail form of inlay repair is proposed, and it is numerically verified that this method can effectively reduce the stress concentration.

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Experimental Study on the Bending Behavior of Steel‐Wood Composite Beams

Cited by 7 publications

References 5 publications

Bending Properties of Cold-Formed Thin-Walled Steel/Fast-Growing Timber Composite I-Beams

Bending Properties of Cold-Formed Thin-Walled Steel/Fast-Growing Timber Composite I-Beams

GL Beams Reinforced with Plywood in the Outer Layer

Experimental and Numerical Studies on Repaired Wooden Beam of Traditional Buildings in Huizhou Region, China

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