Glulam-concrete composites: experimental investigation into the connection system

Miotto, José Luiz; Dias, Antônio Alves

doi:10.1590/s1516-14392011005000002

Cited by 14 publications

(8 citation statements)

References 7 publications

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“…As discussed in previous reports it is important investigating wood from different species as alternatives in preparing Glued Laminated Timber [1]. As an engineered wood product Glued Laminated Timber (Glulam) requires manufacturing precision in all its stages [2][3][4], and only laboratory tests can be used to evaluate finished specimens [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Shear Strength and Cyclic Delamination of Paricá (Schizolobium amazonicum) Glued Laminated Timber

Cavalheiro¹,

Neto²,

Christofóro³

et al. 2016

ijme

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Glued laminated timber (glulam) is an engineered product that requires manufacturing precision in all its stages.The finished product can only be tested in laboratory conditions; however, it is necessary to provide the quality control in production to ensure that glulam properties are appropriate to the product specified requirements in accordance with proper codes. This research aimed to evaluate the proposed trials conducted with combinations of Paricá (Schizolobium amazonicum, a tropical wood species coming from a certificate reforestation area), three adhesives (polyurethane, phenol resorcinol formaldehyde, melamine formaldehyde) and two types of treatment (CCA, CCB). The shear strength and delamination test results of all the treated samples showed the good performance of Paricá glulam, which can be used to indoor and outdoor applications.

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Section: Introductionmentioning

confidence: 99%

Evaluation of Shear Strength and Cyclic Delamination of Paricá (Schizolobium amazonicum) Glued Laminated Timber

Cavalheiro¹,

Neto²,

Christofóro³

et al. 2016

ijme

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“…These connections have exhibited good ductility and a quite acceptable slip modulus and load-bearing capacity. Miotto and Dias (2008) investigated connection systems made of rebars of two different diameters glued into timber holes drilled at a 45º angle to the timber grain (Fig. 7i).…”

Section: Types Of Connection Systemsmentioning

confidence: 99%

Timber-Concrete Composite Bridges: State-of-the-Art Review

Rodrigues¹,

Dias²,

Providência³

2013

BioResources

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This review article presents a state-of-the-art survey on timber-concrete composite (TCC) bridges. It starts with a presentation of a sample of relevant TCC bridges, offering a global perspective on the use of this type of bridge. The number of TCC bridges has clearly increased in the past few years, and some of the reasons for this trend are explored. Next, an extensive literature review is presented regarding the most significant technological innovations and recent developments in the application of TCC structures to bridge construction. Firstly, the engineering specificities and the advantages of TCC bridge structural systems are enumerated. Afterwards, the importance of proper mechanical connection for optimal performance of TCC structures is explained, and a thorough description of the connection systems suitable for bridge construction is provided. Some research into the structural behavior of TCC bridges under service conditions is then presented and discussed. Finally, possible areas of future research regarding the development of TCC bridges are suggested.

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“…The use of this adhesive was used by Azambuja and Dias (2006) and Miotto and Dias (2011) in glulam, where efficacy was evidenced in relation to the structural performance view, besides the viability of the adhesive application in glulam. From this, the objective of this paper was to evaluate the effect of the number of laminae on the physical and mechanical behavior of glulam of Toona ciliata (Australian cedar) produced from polyurethane adhesive based on castor oil.…”

Section: Introductionmentioning

confidence: 99%

Number of laminae on the mechanical behavior of glued laminated timber (glulam) of Toona ciliata produced with vegetable polyurethane adhesive

et al. 2019

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The glued laminated timber (glulam) is a composite material obtained from the bonding of wood laminae arranged with parallel fibers put together. The purpose of this paper was to evaluate the influence of the number of laminae on the mechanical behavior of glulam of Toona ciliata produced with vegetable-based polyurethane adhesive. The glulam beams were produced with lamellae in the dimensions of 6.0 x 1.5 x 120.0 cm, with 3 beams being made per treatment, which were structurally composed by 5, 7 and 9 laminae. The polyurethane adhesive based on castor oil was used, applying a grammage of 350 g m-². For the technological characterization of the wood the moisture in the dry base, bulk density, chemical characterization, compressive strength parallel to the fibers, shear and modulus of elasticity (MOE) and rupture (MOR) in the static bending test. While the properties of modulus of elasticity (MOE), modulus of rupture (MOR), shear strength, delamination and visualization of the glue line through photomicrographs of the laminated wood samples were determined for glulam beams. The results showed that the beams with 5 laminae presented values similar to solid wood. The increase in the number of laminae provided lower values for stiffness and strength of the beams. The photomicrographs showed the quality of the bonding and the satisfactory values for shear strength and delamination, indicating the viability of the species under study for situations with high moisture content.

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Glulam-concrete composites: experimental investigation into the connection system

Cited by 14 publications

References 7 publications

Evaluation of Shear Strength and Cyclic Delamination of Paricá (Schizolobium amazonicum) Glued Laminated Timber

Evaluation of Shear Strength and Cyclic Delamination of Paricá (Schizolobium amazonicum) Glued Laminated Timber

Timber-Concrete Composite Bridges: State-of-the-Art Review

Number of laminae on the mechanical behavior of glued laminated timber (glulam) of Toona ciliata produced with vegetable polyurethane adhesive

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