Experimental Study on Flexural-Shear Behavior of Mortise-Tenon Joint With Dowel

Sakata, Hiroyasu; Yamazaki, Yoji; Udagawa, Hirotaka; Ohashi, Yoshimitsu

doi:10.3130/aijs.77.45

Cited by 8 publications

(2 citation statements)

References 2 publications

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“…While these equations are similar to those suggested by Sakata et al [7], this study differs in that it takes into consideration the deformation angle h of column for the resistance P c1 , P c2 , P c3 and P f3 . Based on Eq.…”

Section: Compressive and Frictional Resistancementioning

confidence: 74%

“…Nishimura et al [6] experimentally measured the stress transfer of tenons under the rotational deformation of the joint, and examined specific features required of a mechanical analysis model. Furthermore, Sakata et al [7] developed a mechanical model by applying the compressive and frictional theories of wood, and formulated the relationship between moment resistance and deformation angle of column at mortise-tenon joints. They validated the formulation derived through its comparison with test results.…”

Section: Introductionmentioning

confidence: 99%

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Theoretical estimation of the mechanical performance of traditional mortise–tenon joint involving a gap

2016

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The mortise-tenon joint, which connects columns and beams of a wooden building, often creates a gap in contact part of members. This gap is considered to affect mechanical performance of the mortise-tenon joint. This study derived a method of theoretical estimation with a gap as parameter for the mechanical performance of mortisetenon joint. In addition, it experimentally validated the method of estimation and numerically analyzed the influence of a size of such gap on mechanical properties. As a result, the estimated relationship between moment resistance and deformation angle of column shows the agreement with the experimental results, demonstrating validity of the estimation method derived. Results of the numerical analysis quantify the influence of the size of the gap on mechanical properties of the joint. The numerically analysis clarified the large influence of the gap at joints on the mechanical properties.

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Section: Compressive and Frictional Resistancementioning

confidence: 74%

Section: Introductionmentioning

confidence: 99%

Theoretical estimation of the mechanical performance of traditional mortise–tenon joint involving a gap

2016

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Fatigue and damage evolution in wood T-shaped mortise and tenon joints

Liu,

Zhang,

et al. 2024

Sci Rep

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Mortise and tenon joint is a key connecting component in timber-framed architecture. Accurately assessing the damage to joints is crucial for the structural design of wooden buildings. This study conducted fatigue tests at three stress levels (70%, 100%, and 130%) based on the maximum stress from static bending tests to analyze the impact of different stress levels on the fatigue performance of mortise and tenon joints. The results showed that the deformation increased as the stress level increased. The energy loss per cycle de-creased and then increased at 130% stress level, and remained essentially constant at 70% and 100% levels. Then, micro-CT scanning was performed on the specimens after fatigue testing. The ambient occlusion algorithm was used to identify the outer boundaries of the tenon, which can distinguish internal cracks from outside air. The sphericity index was used to differentiate between pores and cracks. Three-dimensional visualization analysis was performed on the specimens, and the obtained information on pores and cracks was quantitatively analyzed. The results indicated that deformation and fracture of the tenon were the primary causes of joint damage. The layer-by-layer porosity of the undeformed portion of the tenon remained essentially constant and was lower than that of the fractured region and higher than that of the deformed region. This study analyzed the damage behavior of mortise and tenon joints under different stress levels, contributing to the design and protection of wooden structure buildings.

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