DAMAGE TYPES OF TENON-MORTISE JOINTS OF CHINESE ANCIENT BUILDINGS UNDER BENDING LOADS BY SIMULATION
In order to protect Chinese ancient buildings, numerical simulation is used to study damage types of tenon-mortise joints of Chinese ancient wooden buildings under bending loads. Two typical tenonmortise joints are selected for simulation: Straight joint and Yan-wei joint. By ANSYS program finite element models of the two tenon-mortise joints are built. By applying displacement load on side face of beam (10mm upward) step by step status of tensile stress, compression stress, shearing stress and moment-rotation angle relationship of the two joints are studied. Peak values of stresses above at each step of both joints are obtained. Results show that for a Straight joint under bending loads damage types of its tenon include tensile strength failure, compression strength failure and shearing strength failure; However its mortise will not be damaged; For a Yan-wei joint both the tenon and mortise will be damaged for tensile strength failure, compression strength failure and shearing strength failure; On the other hand, rotation stiffness of Yan-wei joint is larger than that of Straight joint, which means the Yan-wei joint is hard to be rotated, and once it is rotated, it is more likely to be damaged.
tenon-mortise joints bending loads numerical simulation damage type Chinese ancient buildings
Qian Zhou Wei-Ming Yan
Beijing Key Laboratory of Earthquake Engineering and Structural Retrofit, Beijing University of Tech Beijing Key Laboratory of Earthquake Engineering and Structural Retrofit, Beijing University of Tech
国际会议
广州
英文
1214-1219
2009-11-28（万方平台首次上网日期，不代表论文的发表时间）