We studied the effect of loose tenon dimensions on stress and strain distributions in T-shaped mortise and loose tenon （M＆amp;LT） furni-ture joints under uniaxial bending loads, and determined the effects of loose ...We studied the effect of loose tenon dimensions on stress and strain distributions in T-shaped mortise and loose tenon （M＆amp;LT） furni-ture joints under uniaxial bending loads, and determined the effects of loose tenon length （30, 45, 60, and 90 mm） and loose tenon thickness （6 and 8 mm） on bending moment capacity of M＆amp;LT joints constructed with polyvinyl acetate （PVAc） adhesive. Stress and strain distributions in joint elements were then estimated for each joint using ANSYS finite element （FE） software. The bending moment capacity of joints increased significantly with thickness and length of the tenon. Based on the FE analysis results, under uniaxial bending, the highest shear stress values were obtained in the middle parts of the tenon, while the highest shear elastic strain values were estimated in glue lines between the tenon sur-faces and walls of the mortise. Shear stress and shear elastic strain values in joint elements generally increased with tenon dimensions and corre-sponding bending moment capacities. There was consistency between predicted maximum shear stress values and failure modes of the joints.展开更多
The seismic characteristics of four typical mortise-tenon joints of Chinese southern traditional timber frame buildings were researched,including Yanwei mortise-tenon joint(including dropping Yanwei mortise-tenon join...The seismic characteristics of four typical mortise-tenon joints of Chinese southern traditional timber frame buildings were researched,including Yanwei mortise-tenon joint(including dropping Yanwei mortise-tenon joint),Shizigutou mortise-tenon joint,Ban mortise-tenon joint and Mantou mortise-tenon joint.Experiments on thirteen specimens were carried out.Failure modes,hysteresis curves,skeleton curves and rotational stiffness were studied.The results provided a theoretical basis for seismic research,protection and maintenance of Chinese southern traditional timber frame buildings.展开更多
文摘We studied the effect of loose tenon dimensions on stress and strain distributions in T-shaped mortise and loose tenon （M＆amp;LT） furni-ture joints under uniaxial bending loads, and determined the effects of loose tenon length （30, 45, 60, and 90 mm） and loose tenon thickness （6 and 8 mm） on bending moment capacity of M＆amp;LT joints constructed with polyvinyl acetate （PVAc） adhesive. Stress and strain distributions in joint elements were then estimated for each joint using ANSYS finite element （FE） software. The bending moment capacity of joints increased significantly with thickness and length of the tenon. Based on the FE analysis results, under uniaxial bending, the highest shear stress values were obtained in the middle parts of the tenon, while the highest shear elastic strain values were estimated in glue lines between the tenon sur-faces and walls of the mortise. Shear stress and shear elastic strain values in joint elements generally increased with tenon dimensions and corre-sponding bending moment capacities. There was consistency between predicted maximum shear stress values and failure modes of the joints.
基金supported by the National Natural Science Foundation of China(Grant No.51008059)China Postdoctoral Science Special Foundation(Grant No.201003543)
文摘The seismic characteristics of four typical mortise-tenon joints of Chinese southern traditional timber frame buildings were researched,including Yanwei mortise-tenon joint(including dropping Yanwei mortise-tenon joint),Shizigutou mortise-tenon joint,Ban mortise-tenon joint and Mantou mortise-tenon joint.Experiments on thirteen specimens were carried out.Failure modes,hysteresis curves,skeleton curves and rotational stiffness were studied.The results provided a theoretical basis for seismic research,protection and maintenance of Chinese southern traditional timber frame buildings.
