Experimental Study on the Bending Properties of Grouting Butt Joints Reinforced by Steel Plate Embedded in Bamboo Tube

Huang, Tao; Xin, Zhuo

doi:10.32604/jrm.2022.017373

Cited by 3 publications

(3 citation statements)

References 20 publications

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“…The flexural strength significantly differs when bamboo species are compared because the f value of 2.933 is greater than the f critical value of 2.092, tested at a significance level. This implies that the bamboo's flexural strength depends on its spices and treatment of bamboo culm and treatment period; however, the concrete infill Huang, T., & Zhuo, X. (2022) significantly increased its flexural strength of the bamboo Culm subjected to Midspan loadings Weifeng, Z. et al (2012), Table 4: ANOVA: Comparison between the flexural strength of bamboo culm as a beam infill with concrete when untreated (kiln dried), treated with seawater, and treated with seawater plus a 10 percent solution of mango polyphenol.…”

Section: Resultsmentioning

confidence: 99%

Flexural Strength of Reinforced - Bamboo Concrete Infill Structural Beam Subjected to Concentrated Load at Midspan

Bacosa¹,

Loretero²

2023

Am. J. Multidis. Res. Innov.

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Bamboo is still considered a material for poor people in rural areas. Still, it also has the potential to be fully developed engineering material reinforced structural beams with concrete infill to increase the structural strength of the structures, which is natural aesthetic, and more durable than bamboo alone as structural parts of buildings. This study aims to determine the flexural strength of bamboo with concrete infill as a structural beam subjected to a concentrated load at midspan. The materials used were whole bamboo culms, specifically Dendrocalamus Asper Schultes, Dendrocalamus Merrillianos Elmer, Bambusa Vulgaris Schrad, and Bambusa Blumeana Schultes cut into 600 mm lengths and treated with seawater and seawater with mango polyphenol infilled with concrete. The concrete was cured for 7, 14, 28, and 56 days, respectively. The results showed that the whole bamboo culm treated with seawater and treated with seawater plus a 10 percent solution of mango polyphenol extract remarkably increased its flexural strength. The concrete infill to the whole bamboo culm as the beam is effective, increasing flexural strength when treated with mango polyphenol. The curing age of concrete and treatment of bamboo culm with seawater and mango polyphenol affects the flexural strength of reinforced bamboo with concrete infill subjected to a concentrated load at midspan. Reinforced bamboo concrete infill-based construction materials can reduce pressure on resources and the environment. These materials have environmental and mechanical advantages over conventional construction materials.

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Section: Resultsmentioning

confidence: 99%

Flexural Strength of Reinforced - Bamboo Concrete Infill Structural Beam Subjected to Concentrated Load at Midspan

Bacosa¹,

Loretero²

2023

Am. J. Multidis. Res. Innov.

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“…In the German-Chinese House at the Shanghai World Expo 2010 [12], the joints are made of prefabricated steel parts with grouting, and the prefabricated steel components are capable of connecting bamboo tubes in different directions. Huang et al [13] proposed a bamboo tube joint using grouting and built-in steel sheet connection, and the tests showed that this type of joint has high load-bearing capacity. These improved grouted joints showed better mechanical properties, but the grouting significantly increased the self-weight of the structure and could not take advantage of the light weight of the bamboo tube structure.…”

Section: Introductionmentioning

confidence: 99%

Study on the Mechanical Properties and Design Method of Frame-Unit Bamboo Culm Members Based on Semi-Rigid Joints

Wang,

Zhuo,

Zhang

et al. 2024

Buildings

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The frame-unit bamboo culm structure system offers a novel approach to bamboo structure, combining advantages like reduced construction times and simplified joint designs. Despite its benefits, there is limited research on its mechanical properties and computational methodologies. This study conducted bending performance tests on simply supported frame-unit bamboo culm structures, revealing that the bending stiffness of the structure increases with the number of bolts in the edge joints, though with diminishing efficiency. Based on the experimental observations, a calculation model for this type of structure was established, proposing formulas to describe the stiffness relationships between the corner joints, edge joint, and the overall structure. Numerical simulations calculated the stiffness of the edge joint as a function of the number and placement of bolts, indicating that positioning bolts closer to the outer side enhances edge joint stiffness. By inputting the various rotational stiffness values of corner joints into the simulations and stiffness formulas, consistent total stiffness values were obtained, validating the proposed stiffness relationship formulas. The average stiffness values of the corner joints were derived from these formulas and experimental data, and the rotational stiffness of other types of corner points can also be obtained using this method. Furthermore, a finite element computational method tailored for this structural system was introduced, converting the actual structure into a beam element model for calculation. The equivalent joint forces can be distributed to various components of the actual structure, resulting in the internal force distribution of bamboo culms and bolts in the actual structure, thus achieving the design of the components. The calculated displacement values obtained from this method are close to the displacement values in the experiment, proving the feasibility of this method.

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“…1, Villegas et al [15] used steel hoop, U-shaped steel splint and bolts to realize the multi-angle connection between the chords and girders in the bamboo truss structure, and tested the bearing capacity of the bamboo truss under this connection mode through static tension tests. Huang et al [16] showed the construction of grouting butt joints of bamboo tubes by adding a semi-perforated steel plate inside, pasting a CFRP sheet on the external wall and increasing the width of the steel plate is simple and efficient. Wang et al [17] proposed dowel-type bamboo joints for prefabricated bamboo structures.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Moso Bamboo to-Steel Connections with Embedded Grouting Materials

Nie¹,

Fu²,

Wang³

et al. 2023

Journal of Renewable Materials

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Moso bamboos have attracted excessive attention as a renewable green building material to the concept of sustainable development. In this paper, the 20 bolted Moso bamboo connection specimens with embedded steel plates and grouting materials were designed according to connection configurations with different bolt diameters and end distance of bolt holes, and their bearing capacities and failure modes were analyzed by static tension tests. According to the test results of all connectors, the failure modes of the specimens are divided into four categories, and the effects of bolt diameter and bolt hole end distance on the connection bearing capacity and failure mode are analyzed. The test results show that the deformation and failure process can be divided into four stages. The main influence factor of connector bearing capacity is bolt diameter. Connectors can be divided into four failure modes, and brittle failure can be avoided by adopting certain structural measures. Filling with grouting material can improve the bearing capacity of joints. Due to the large variability of bamboo, further experiments are needed.

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Experimental Study on the Bending Properties of Grouting Butt Joints Reinforced by Steel Plate Embedded in Bamboo Tube

Cited by 3 publications

References 20 publications

Flexural Strength of Reinforced - Bamboo Concrete Infill Structural Beam Subjected to Concentrated Load at Midspan

Flexural Strength of Reinforced - Bamboo Concrete Infill Structural Beam Subjected to Concentrated Load at Midspan

Study on the Mechanical Properties and Design Method of Frame-Unit Bamboo Culm Members Based on Semi-Rigid Joints

Experimental Study of Moso Bamboo to-Steel Connections with Embedded Grouting Materials

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