Experimental Investigations of Deconstructable Timber–Concrete Composite Beams

Khorsandnia, Nima; Valipour, Hamid; Schänzlin, Jörg; Crews, Keith

doi:10.1061/(asce)st.1943-541x.0001607

Cited by 60 publications

(17 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…• The high consistency on strength might be due to the good quality control on the screws' yield stresses, which observations suggest might have governed the failures. The lesser consistency on slip modulus was also noted in a previous study [11] which used LVL based on another species of timber, and within which the variability was attributed to construction method, inconsistency in material properties and the overall nature of TCC connections. Fig.…”

Section: Slip Moduli and Longitudinal Shear Force Capacitiessupporting

confidence: 59%

“…TCC connections based on mechanical connectors have been extensively characterised in experimental studies to date. These include nails or nail-plates [1,[5][6][7], vertical or inclined screws [6,[8][9][10][11][12], dowels [4,13,14], perforated steel plates or steel meshes bonded into the timber [3,[15][16][17], and notches [3,6,[18][19][20][21][22]. The tests have considered both normal and lightweight concretes, short-term and long-term behaviours, and the presence or absence of a formwork interlayer.…”

Section: Literature Reviewmentioning

confidence: 99%

See 1 more Smart Citation

Forward and Reverse shear transfer in beech LVL-concrete composites with singly inclined coach screw connectors

Sebastian

Piazza

Harvey³

et al. 2018

Engineering Structures

View full text Add to dashboard Cite

Double-shear tests are reported on beech LVL-concrete composite connections based on coach screw connectors singly inclined at either 45 o or 90 o. On different specimens with the same screw orientation the longitudinal shear force was applied either in forward or reverse, because in practice concrete shrinkage, moisture-induced timber expansion and oscillatory (e.g. seismic) or moving loads can induce reversal of the force on the connection. The test data show that relative to the 90 o screw connections, sloping the screws to 45 o in tension only marginally affected longitudinal shear strength but led to a five-fold increase of slip modulus and to a significant drop in ductility, while sloping the screws the other way to 45 o in compression only marginally affected slip modulus but led to an almost four-fold drop in longitudinal shear strength and to a substantial increase in ductility. The specimens tested within each group showed good consistency of shear strength and (except the 45 o tension screw specimens, despite their consistent strengths) of failure mode, but high variability of slip modulus. Comparisons with previously tested timber-concrete composite (TCC) connections based on other screw types and layouts suggest good performance of the present connections. The gamma method applied to a given TCC T-section under load shows that the present alternate connections lead to quite different depths of uncracked concrete and so to significant variation of midspan deflection. In closing, it is recommended that both forward and reverse shear testing becomes a protocol for singly inclined coach screw-based TCC connections.

show abstract

Section: Slip Moduli and Longitudinal Shear Force Capacitiessupporting

confidence: 59%

Section: Literature Reviewmentioning

confidence: 99%

Forward and Reverse shear transfer in beech LVL-concrete composites with singly inclined coach screw connectors

Sebastian

Piazza

Harvey³

et al. 2018

Engineering Structures

View full text Add to dashboard Cite

show abstract

“…Crocetti et al [18] proposed an effective method to realise the ‘dry-dry’ connection of TCC beam by using inclined screws. Khorsandnia et al [19] also researched several possibilities for the deconstructable TCC beams, and obtained desired structural performances. Zhu et al [20] proposed an innovative hybrid connection, which consists of steel plated pre-embedded in concrete and screws, aiming to explore the feasibility for prefabricated TCC systems.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation on the long-term behaviour of prefabricated timber-concrete composite beams with steel plate connections

Shi

Liu

Yang

2021

Construction and Building Materials

View full text Add to dashboard Cite

show abstract

“…Owing to excellent combination advantages, layered composite structures are extensively used in civil engineering. The common applications are steel-concrete composite beams [1,2], wood-concrete composite panels [3,4], fiber reinforced concrete [5,6], laminated glasses [7,8], and so on. The existing analysis indicates that the interface connection property has considerable impact on the stresses and deformations in the layered structures [9,10].…”

Section: Introductionmentioning

confidence: 99%

Analytical Solution of Deformations for Two‐Layer Timoshenko Beams Glued by a Viscoelastic Interlayer

Pei

Wang

et al. 2019

Mathematical Problems in Engineering

View full text Add to dashboard Cite

An analytical solution of stresses and deformations for two-layer Timoshenko beams glued by a viscoelastic interlayer under uniform transverse load is presented. The standard linear solid model is employed to simulate the viscoelastic characteristics of the interlayer, in which the memory effect of strains is considered. The mechanical behavior of each layer is described by the first-order shear deformation theory (FSDT). By means of the principle of minimum potential energy, a group of equations for displacements and rotation angles are derived out. The final solution is obtained by conducting the Laplace transform and the inversion of Laplace transform to the equation group. Numerical comparison shows that the present solutions and the finite element results are in good agreement. It is shown that the present results are more accurate than those obtained from the Euler-Bernoulli beam theory, especially for thick beams. And the present solutions can accurately describe the variation of stresses and deformations of the beam with the time, compared with those ignoring the memory effect of strains. Finally, the effects of the geometric parameters and material properties of the interlayer on stresses and deformations of the beam are studied in detail.

show abstract

Experimental Investigations of Deconstructable Timber–Concrete Composite Beams

Cited by 60 publications

References 27 publications

Forward and Reverse shear transfer in beech LVL-concrete composites with singly inclined coach screw connectors

Forward and Reverse shear transfer in beech LVL-concrete composites with singly inclined coach screw connectors

Experimental investigation on the long-term behaviour of prefabricated timber-concrete composite beams with steel plate connections

Analytical Solution of Deformations for Two‐Layer Timoshenko Beams Glued by a Viscoelastic Interlayer

Contact Info

Product

Resources

About