Double Span Continuous Glulam Slabs Strengthened with GFRP

Branco, Jorge M.; Jorge, Marco; Sena-Cruz, José

doi:10.1007/978-94-007-7811-5_72

Cited by 1 publication

(2 citation statements)

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“…e ductility of the PBSL beams could be effectively enhanced by adopting the AFRP provision. Meanwhile, the NSM (near-surface mounted) technique has been applied to timber structures [18,19]. Jorge et al [18] studied the bond between Glulam and NSM CFRP laminates; the local bond stress-slip relationship and failure modes were determined, and they found that the bond length was the main influence factor.…”

Section: Introductionmentioning

confidence: 99%

“…Jorge et al [18] studied the bond between Glulam and NSM CFRP laminates; the local bond stress-slip relationship and failure modes were determined, and they found that the bond length was the main influence factor. Branco et al [19] proposed that GFRP robs were mounted to double-span continuous Glulam slabs bottom to strengthen its capacity.…”

Section: Introductionmentioning

confidence: 99%

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Bending Performance of Prestressed Continuous Glulam Beams

Guo

et al. 2021

Advances in Civil Engineering

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The limited transferring moment capability of Glulam (glued laminated wood) joints results in insufficient joint stiffness. Therefore, most of the connections are hinged joints. Based on the previous studies, one novel end-connection device was proposed to form prestressed continuous Glulam beams. The prestressed beams were composed of prestressed low-relaxation steel bars, the deviator block, the anchorage device, and the novel end-connection apparatus. These prestressed steel bars were tensioned by the deviator block to exert prestress. Then, 18 prestressed continuous beams and two prestressed simply supported beams were subject to the bending tests to explore the impact of reinforcement ratio and prestress on the prestressed Glulam beams from aspects such as failure modes, bearing capacity, load-deflection relationship, and load-strain relationship. The results show that, given the same prestress level, compared with beams with a reinforcement ratio of 1.92%, the bearing capacity of beams with a reinforcement ratio of 3.84% and 5.76% is increased by 20.3%–29.4% and 30.51%–36.36%, respectively. Given the same reinforcement ratios, compared with beams without prestressing, the bearing capacity of beams with a prestressing force of 7 kN and 14 kN is increased by 2.39%–10.14% and 6.49%–13.26%, respectively. In addition, compared with simply supported beams, the bearing capacity of continuous beams is increased by 40%, and the deformation is reduced by 13%. Therefore, as a novel prestressed beam, the bending performance of Glulam beams can be improved effectively.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%