Shear behavior of I-shaped wood-steel composite beam

Wu, Shixu; Shan, Qifeng; Zhang, Jialiang; Tong, Keting; Li, Yushun

doi:10.15376/biores.16.1.583-596

Cited by 4 publications

(2 citation statements)

References 6 publications

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“…By combining Hill's yield and element removal criteria, a new, high-fidelity finite element model was proposed. Wu et al [10] carried out the shear performance test on steel-wood composite beams, and established the calculation formula of shear capacity of composite beams according to the bending shear flow theory. Wang et al [11] performed four-point bending on a new type of I-LVL beam strengthened by cold-formed thin-walled channel steel, and found that considering the slip effect when calculating the flexural capacity was closer to the actual deformation than the section method.…”

Section: Introductionmentioning

confidence: 99%

Research on the Shear Performance of Cold-Formed Thin-Walled Steel-Glued Laminated Wood Composite Beams

Yang,

Guo,

Wang

et al. 2023

Buildings

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This paper proposes a new type of composite box beam combined with cold-formed thin-walled steel and glued laminated timber to develop green building structures while improving the load-carrying capacity of a single steel girder and glued timber girder. Two composite beams composed of laminated timber and Q235 cold-formed thin-walled steel were designed and fabricated. Then, the shear performance test with quadratic loading was carried out to analyze the load carrying capacity, damage modes, and deformation characteristics of the test beams, as well as their influencing factors. Subsequently, a finite element model of the composite beam was established, and the loading mode was the same as that of the test to further study the parameters affecting the shear performance of the composite beam. The results of the study indicate that steel and glued timber in composite beams connected by adhesive bonding can work and deform together under load and each give full play to its material properties, especially the composite beams, which exhibit higher shear strength than a steel or timber beam. The effects of parameters such as steel cross-sectional area, shear span ratio, steel skeleton form, and steel cross-sectional strength on the shear capacity of the composite beams were observed, among which the shear span ratio had the greatest effect on the shear capacity of the composite beams. The shear capacity decreased by 14.3% and 19.5% when the shear span ratio was increased from 1.5 to 2.0 and 2.5, respectively. The shear capacity of the combined composite beams increased by 10.6%, 6.3%, and 5.8% when the thickness was increased from 1.5 mm to 2.0 mm, 2.5 mm, and 3.0 mm, respectively. When the combination of the steel cross-section was a box beam, the overall shear-bearing capacity could be increased by 12% compared with the “I” type composite beam, although its shear stiffness was close to that of the “I” section composite beam.

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Section: Introductionmentioning

confidence: 99%

Research on the Shear Performance of Cold-Formed Thin-Walled Steel-Glued Laminated Wood Composite Beams

Yang,

Guo,

Wang

et al. 2023

Buildings

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“…Tsai and Le (2018) reinforced the web of an I-shaped steel beam with timber using screws, and the strength of the composite beam was improved by about 15%. Wu et al (2021) developed an I-shaped wood-steel composite beam and reported that an elastic-plastic phase appeared as a result of the bending performance test. As mentioned above, researchers revealed the advantages of timber-steel composite beams.…”

Section: Introductionmentioning

confidence: 99%

Bending behavior of separable glued-laminated timber (GLT)-steel beam combined with inclined screws,

Pang

2023

BioRes

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A separable glued-laminated timber (GLT, Larix kaempferi Carr.)-steel beam system is presented in this work for easy recycling at the time of disposal. The minimum thickness of steel required to induce compressive GLT failure was assembled with GLT by inclined screws. In a total of 8 GLTs, 3 GLTs were not reinforced (control group), and 5 GLTs were reinforced with steel plates (comparison group). In the GLT in the comparison group, a steel plate (SPHC, yield strength: 227 MPa, modulus of elasticity 166.33 GPa) was installed with screws (∅9x160mm, 45°). The deflection and load of specimens were measured by a third-point bending test to derive their bending stiffness and load-carrying capacities. All specimens in the control group showed brittle tensile failure, but all specimens in the comparison group showed ductile behavior and maintained a load-carrying capacity of about 30 kN. After the compression failure of the GLT, there was no damage to the screw connection, while the steel plate was extended. Based on the behavior of the steel, a GLT-steel beam prediction model was developed, similar to the structural design method for reinforced concrete.

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Experimental investigation on the flexural and shear behaviour of LVL I-beam strengthened with steel channels

Wang

Zhang

et al. 2022

Construction and Building Materials

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Shear behavior of I-shaped wood-steel composite beam

Cited by 4 publications

References 6 publications

Research on the Shear Performance of Cold-Formed Thin-Walled Steel-Glued Laminated Wood Composite Beams

Research on the Shear Performance of Cold-Formed Thin-Walled Steel-Glued Laminated Wood Composite Beams

Bending behavior of separable glued-laminated timber (GLT)-steel beam combined with inclined screws,

Experimental investigation on the flexural and shear behaviour of LVL I-beam strengthened with steel channels

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