Simulation of embedment phenomena on bamboo culms via a modified foundation modelling approach

Mouka, Theodora; Dimitrakopoulos, Elias G.

doi:10.1016/j.conbuildmat.2020.122048

Cited by 10 publications

(2 citation statements)

References 39 publications

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“…This is in agreement with numerical results for specimen ML3 [12]. On the contrary, Kao Jue is more likely to fail in longitudinal compression for typical shape factor values of this species ( ϕ = 3.0–4.0 [11,21,31]). Lastly, Guadua could fail either in longitudinal compression or in circumferential tension, depending on the shape factor (typical values ϕ = 3.0–6.0 [14,33]).…”

Section: Failure Mechanismssupporting

confidence: 90%

Insight into the behaviour of bamboo culms subjected to bending

Mouka

Dimitrakopoulos

Lorenzo

2022

J. R. Soc. Interface.

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This study describes analytically the behaviour of bamboo culms subjected to bending, and predicts the failure load and stiffness loss after the linear-elastic stage. Basis of the failure load prediction is the identification of the critical failure mechanisms. The study examines analytically four distinct failure mechanisms: Brazier instability, longitudinal tension/compression, tension perpendicular to the fibres and shear parallel to the fibres. It concludes that, for the three bamboo species examined (Moso, Guadua and Kao Jue), critical failure mechanisms are tension perpendicular to the fibres (with potential tension–shear interaction) and longitudinal compression. Which of the two mechanisms occurs first depends on the case-specific material properties and culm radius-to-thickness ratio. Regarding stiffness loss, the main cause is longitudinal splitting. The extent of the stiffness loss depends on crack length, crack number and crack location along the culm circumference. Secondary causes are nonlinear geometric effects at the large deflection stage. Assuming a parabolic deformed shape, a single equation can describe the stiffness loss induced by nonlinear geometric effects, regardless of material properties and culm geometry. Comparing the analytical results with pertinent experimental data, the proposed equations are sufficiently accurate in their prediction of failure load and stiffness loss, although they tend to underestimate both.

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Section: Failure Mechanismssupporting

confidence: 90%

Insight into the behaviour of bamboo culms subjected to bending

Mouka

Dimitrakopoulos

Lorenzo

2022

J. R. Soc. Interface.

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“…The idea was to create a zone below the insertion of the bolts with a softer material, e.g., fibers. Using this method, a reduction in stiffness was observed when embedding the parts (Mouka and Dimitrakopoulos, 2021).…”

Section: Steel Member Connections and Steel Plate Connectionsmentioning

confidence: 99%

A review of the evolution of research on proposals for bamboo culms connections in structural systems

Gaffuri,

Moura,

Barbosa

et al. 2023

BioRes

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Structural systems built from raw bamboo have been used for years due to its highly renewable characteristics, versatility, and abundance in various countries, e.g., China, Indonesia, all over South America, and especially Brazil. It is also considered a low specific weight material, which means it is easy to handle and transport. These characteristics make it a low-cost material for building construction. The objective of this systematic bibliometric review is to identify innovations in bamboo culms structural connections in order to contribute to the advancement of technology applied to civil construction by seeking joints that consider the use of industrialized or standardized products. This review revealed there is still no ideal connection capable of solving the great problem of this subject, which points out the need for more studies on the topic. This investigation also allows for the classification of the connections into 5 categories: Bolted connections; Steel member and Steel plate connections; Reinforced Connections with filler; Parameterized connections, and; Connections with the use of wooden dowels.

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Axial load–deformation behavior and fracture characteristics of bolted steel to laminated timber and glubam connections

Shi

Demartino

et al. 2023

Composite Structures

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Simulation of embedment phenomena on bamboo culms via a modified foundation modelling approach

Cited by 10 publications

References 39 publications

Insight into the behaviour of bamboo culms subjected to bending

Insight into the behaviour of bamboo culms subjected to bending

A review of the evolution of research on proposals for bamboo culms connections in structural systems

Axial load–deformation behavior and fracture characteristics of bolted steel to laminated timber and glubam connections

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