Combined culm-slat Guadua bamboo trusses

Villegas, Laura; Morán, Richard; García, José Jaime

doi:10.1016/j.engstruct.2019.01.114

Cited by 31 publications

(21 citation statements)

References 22 publications

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“…Being an anisotropic material, it is stronger along its fibers. When used as an engineered structural material, bamboo tends to fail due to longitudinal splitting, caused by tension and shear stress [1]. The nodes spread along bamboo stems seem to have evolved to enable branch points for the leaves.…”

Section: Introductionmentioning

confidence: 99%

Structural analysis of a Guadua bamboo bridge in Colombia

Quintero¹,

Tam²,

Li³

2022

Sustain. Struct.

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In recent years, scientists have focused their attention in developing sustainable materials that can boost the construction industry without causing damage to the environment. In South and Central American forests grows a tropical species of bamboo known as Guadua angustifolia Kunth, which has been widely used for construction purposes since ancient times. Offering advantages such as: environmental friendliness, fast-growing and high strength-to-weight ratio. This paper analyzes the structural behavior of an existing multi-culm Guadua bamboo truss type footbridge located in Colombia, according to national regulations NSR-10. A model of the structure is implemented using a commercial finite element software, details for an accurate description of the structure’s behavior through the proposed model are offered. Furthermore, an exhaustive description of the structure’s load transfer and its materials mechanical properties is performed, as well as a review on connections and immunization process. Finally, improvement opportunities for the building codes used for the analysis and investigation opportunities are identified. The purpose of this paper is stepping into the right direction thus, one day Guadua angustifolia Kunth and bamboo in general can be fully exploited in the construction industry.

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Section: Introductionmentioning

confidence: 99%

Structural analysis of a Guadua bamboo bridge in Colombia

Quintero¹,

Tam²,

Li³

2022

Sustain. Struct.

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“…Chen et al [26] found that the flexural ductility of Moso bamboo was 3.06 times larger than that of wood with the same density. Villegas et al [27] proposed a kind of bamboo truss in prefabricated housing projects to support roofs and floors, which accomplished the expected stiffness and strength over long spans. Yu et al [28] built four full-scale bamboo scaffolds to examine the axial buckling behavior of bamboo columns in bamboo scaffolds.…”

Section: Introductionmentioning

confidence: 99%

Influence of slenderness ratio and sectional geometry on the axial compression behavior of original bamboo columns

Nie¹,

Wei²,

Huang³

et al. 2021

J Wood Sci

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Bamboo has been widely used as a load-bearing material in construction; however, there are limited studies on the stability of slender original bamboo columns. Based on the experimental investigation of thirty-nine original bamboo columns, parametric analyses were conducted to investigate the influence of the diameter–thickness ratio, cross-sectional area and slenderness ratio on the axial compression behavior of original bamboo columns. The test results indicate that the failure modes of the columns are substantially affected by the slenderness ratio and diameter–thickness ratio. For columns with the same diameter–thickness ratio, the ultimate bearing capacity was negatively correlated with the slenderness ratio, and the highest reduction rate for the load-bearing capacity caused by the slenderness ratio was 44.39%. Under the same slenderness ratio, when the diameter–thickness ratio increased by 18.75%, the ultimate bearing capacity increased by 82.65%. An excessive slenderness ratio may result in local buckling, leading to underutilization of the material strength when failure occurs and substantially reducing the load capacity of bamboo columns. Local buckling can be mitigated by decreasing the slenderness ratio and increasing the diameter–thickness ratio. According to the test results, the model predicting the compressive bearing capacity of the original bamboo column was proposed considering the slenderness ratio and diameter–thickness ratio, and it was indicated that the proposed model can provide satisfactory predictive results.

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“…Li and Wei conducted an experimental study on the deformation and failure mechanism of bamboo scrimber and proposed an axial stress-strain model (Li et al , 2015, 2020b; Wei et al , 2018). Villegas designed and tested bamboo trusses assembled with culms and slats; the results illustrated that the bamboo trusses can work well as the floors and roofs in prefabricated housing projects (Villegas et al , 2019).…”

Section: Introductionmentioning

confidence: 99%

Statistical analysis of bamboo scrimber tensile mechanical property based on different models and experiments

Sun

2021

MMMS

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PurposeBamboo scrimber is a new natural fiber-reinforced composite material in the modern industry. In this paper, the strength characteristics of this material were chosen as the object of study.Design/methodology/approachFirst, axial tensile fracture experiments were conducted on different test specimens to determine the corresponding strength data. Then three commonly used distribution models were applied to analyze the relationship between the strength and survival rate.FindingsThe results show that the tensile data demonstrate obvious dispersion. In addition, the three-parameter Weibull model fits the data best and may be used as the fundamental model for future analysis.Originality/valueSpecial statistical analysis research of the bamboo material experimental results has rarely been discovered. This paper provides a solid foundation for better understanding the mechanism of the bamboo scrimber strength phenomenon.

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Combined culm-slat Guadua bamboo trusses

Cited by 31 publications

References 22 publications

Structural analysis of a Guadua bamboo bridge in Colombia

Structural analysis of a Guadua bamboo bridge in Colombia

Influence of slenderness ratio and sectional geometry on the axial compression behavior of original bamboo columns

Statistical analysis of bamboo scrimber tensile mechanical property based on different models and experiments

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