Abstract
The stress mechanism of a straight mortise-and-tenon joint with wooden pegs in traditional residential wooden structures was analyzed, and a theoretical moment-rotation model of the joint was derived. To verify the model, three full-scale joint specimens were fabricated and subjected to low-cycle reversed loading tests. All specimens showed tensile cracking parallel to the grain at the top or bottom of the tenon neck. The theoretical calculation results are consistent with the experimental results. The results of the parametric analysis based on the theoretical model show the following: the rotational stiffness and bending moment of the joint increase as the beam width increases; as the beam height increases, the moment increases, but the initial stiffness of the joint is only slightly impacted; as the column diameter increases, the initial stiffness and moment increase, and the free rotation of the joint decreases; as the gap between the mortise and tenon increases, the initial stiffness and moment decrease; as the sliding friction coefficient increases, both the rotational stiffness and moment of the joint increase, and the increase is greater after the joint yields than before.
Highlights
Academic Editors: Caterina CasavolaMortise-and-tenon joints (MTJs) are often used in traditional residential wooden structures to transfer internal forces and dissipate energy among the members
The results showed that the butted Nuki joints had significantly lower initial stiffness and bending moment than the continuous Nuki joints, and the butted Nuki joints were more sensitive to the gaps, which leads to a large initial rotation angle
Can is When a special joint consisting of a tenon, mortise, andload, a wooden peg, withstand a certain bending moment and produce a certain rotation, which is similar to with no adhesive involved and the wooden peg inserted in the middle of the joint to lock thattenon, of MTJs without
Summary
Mortise-and-tenon joints (MTJs) are often used in traditional residential wooden structures to transfer internal forces and dissipate energy among the members. Li et al [10] conducted low-cycle loading experiments with four mortise-tenon wooden frames and obtained the failure modes and hysteretic performance of the MTJs. Xie et al [11] analyzed the stress mechanism of an SMTJ and theoretically derived its moment-rotation calculation equation. Experiment was proposed and a parametric analysis was carried out on this basis, which necessary to explore the theoretical calculation method of moment-rotation of SMTJs/WPs provides support for research on traditional dwellings in Southeast Guizhou. In contrast to the case of an SMTJ without a wooden peg the tenon is inserted the mortise and thenWooden locked Structure with the Dwellings wooden peg, which can Stress
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