Correlation approach for the Push-Out and full-size bending short-term performances of timber-to-timber slabs with Self-Tapping Screws

Bedon, Chiara; Sciomenta, Martina; Fragiacomo, Massimo

doi:10.1016/j.engstruct.2021.112232

Cited by 13 publications

(6 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In doing to, a reduction coefficient for K ser (equal to 0.7) was also taken into account, in order to include a stiffness reduction due to the presence of existing planking [31][32][33]. As shown in Table 1, the so calculated slip moduli change depending both on the density of reinforcement and on the screw diameter.…”

Section: Slip Moduli and Performancementioning

confidence: 99%

“…Considering the RC slab, the Eurocode 5 provides approximated formulas to determine the mean density to be used Analysing the results in terms of slip moduli, the values assessed according to EC5 underestimates the experimental values expected from tests in similar timber-to-timber joints [19]. Consequently, even the bending stiffness is underestimated, due to the approximations of the method by [30] and on the presence of the interlayer [31,33], in agreement with other studies [35]. The three flexible cases K 1 , K 2 , K 3 , which represent three possible and realistic choices of screws spacing, were considered to evaluate their influence on the effective bending stiffness.…”

Section: Bending Stiffnessmentioning

confidence: 99%

See 1 more Smart Citation

Out-of-Plane Strengthening of Existing Timber Floors with Cross Laminated Timber Panels Made of Short Supply Chain Beech

Spera,

Sciomenta,

Bedon

et al. 2024

Buildings

Self Cite

View full text Add to dashboard Cite

Establishing short supply chains for timber has become important especially in Italy, which is an historically wood-importer country. Timber is an environmentally friendly construction material and a potential mean to reduce carbon footprint produced every year by the building sector. In addition to its sustainability benefits, reversible strengthening interventions can be attained for existing structures. As such, timber can be efficiently used to preserve and protect historical buildings which are, due to architectural and aesthetic values, fundamental components of the Italian cultural heritage. In this study, the use and potential of novel cross-laminated (X-Lam or CLT) timber panels made of Italian hardwood (i.e., beech) for strengthening of existing timber floors is investigated. A quantitative comparison between the mechanical performances of the proposed wood-based product and common retrofitting techniques, such as double-crossed timber planks and reinforced concrete slabs, is carried out in terms of bending stiffness (which is evaluated according to Eurocode 5), influence of weight and reversibility of intervention. It is shown that CLT panels represent a good compromise/alternative for the realisation of reversible and sustainable reinforcing interventions, with rather well promising performances.

show abstract

Section: Slip Moduli and Performancementioning

confidence: 99%

Section: Bending Stiffnessmentioning

confidence: 99%

Out-of-Plane Strengthening of Existing Timber Floors with Cross Laminated Timber Panels Made of Short Supply Chain Beech

Spera,

Sciomenta,

Bedon

et al. 2024

Buildings

Self Cite

View full text Add to dashboard Cite

show abstract

“…related to the design of high-rise wooden buildings [2]. Former developments in computational mechanics made it possible to develop both simple [3,4] and advanced [5][6][7][8][9] numerical methods which take into the account the nonlinear phenomena. These approaches have remained unused in practical design due to their complex implementation and their high running time, at the time of their invention, while nowadays computational resources would allow fast and efficient numerical methods-based design.…”

Section: Introduction 345mentioning

confidence: 99%

Beam-on-Elastic Foundation Model of Mechanical Properties of Ring Nails and Heavy-Duty Screws

Sejkot¹,

Iqbal

2023

World Conference on Timber Engineering (WCTE 2023)

View full text Add to dashboard Cite

Beam-on-foundation modelling shows huge potential to substitute the limit analysis and empirical stiffness formulas used to calculate the load bearing capacity of timber connections with dowel-type fasteners like nails and screws. It takes into the account the non-linear behaviour of fastener's shank subjected to bending as well as the elastic-plastic behaviour of contact between the fastener and surrounding wood. Its another advantage is the capability to calculate both capacity and stiffness of complex connections commonly used in cross-laminated timber structures. This paper describes numerical models of axially and laterally loaded fasteners in wood. Results from modelling are thereafter compared to the experimentally obtained data.

show abstract

“…A good understanding of connections in CLT structures is needed to better predict the performance of the structures and avoid unexpected failures, e.g., caused by the out-of-plane movements under wind and seismic loads [4]. Some scholars [5][6][7][8][9][10] already used advanced modelling techniques in Abaqus® to predict the performance of structures connected by the steel components, ring nails or screws. Therefore, it is the aim of this paper to continue developing similar numerical models and try to use them to predict the performance of the experimentally tested connections of CLT structures.…”

Section: Introduction 345mentioning

confidence: 99%

Ductility of Wood Connections With SDS Screws or Ring Nails and Angle Brackets

Sejkot¹,

Iqbal

2023

World Conference on Timber Engineering (WCTE 2023)

View full text Add to dashboard Cite

Mechanical connections in wood structures typically consist of structural members connected with combination of cold-formed thin-walled steel angle brackets and fasteners in forms of nails or screws. Design of these steel connectors is typically based on short-term monotonic load bearing capacities. Observations from experimental testing indicate that their failure modes and resistance to a cyclic loading should be checked carefully to prevent the thread of sudden collapse of structures using these connections. This paper presents the experimental results of connections of CLT elements connected together by angle brackets and subjected to the external cyclic loading. Special focus is made on connections using heavy duty screws as fasteners. Results of experimental testing are compared to results of testing of similar connections using ring nails as fasteners. In addition, numerical simulations are made with aim to predict the failure modes and the load bearing capacities of experimentally tested connections.

show abstract

Correlation approach for the Push-Out and full-size bending short-term performances of timber-to-timber slabs with Self-Tapping Screws

Cited by 13 publications

References 14 publications

Out-of-Plane Strengthening of Existing Timber Floors with Cross Laminated Timber Panels Made of Short Supply Chain Beech

Out-of-Plane Strengthening of Existing Timber Floors with Cross Laminated Timber Panels Made of Short Supply Chain Beech

Beam-on-Elastic Foundation Model of Mechanical Properties of Ring Nails and Heavy-Duty Screws

Ductility of Wood Connections With SDS Screws or Ring Nails and Angle Brackets

Contact Info

Product

Resources

About