Title: Aseismic characteristics of bucket arch and mortise-tenon joint of ancient Chinese timber buildings:experimental research
Abstract: The pseudo-static tests of the mortise-tenon joint models and the bucket arch models are carried out respectively and the test results show that,under horizontally reversal action,being squeezed by each other,the mortise and the tenon would get an overall plastic deformation,which leads to looser connection between them,and degeneration of rotational rigidity as well as evident flexible characteristic of mortise-tenon joints and,consequently greatly reduces the possible damage to stucture;similarly,the deflection stiffness of the bucket arch is always descended no matter whether the action is increasing or decreasing.On the basis of the mortise-tenon joint and the bucket arch loops,the corresponding restoring moment-rotation model of the bucket arch mortise-tenon joint models,as well as the bilinear force-displacement relation of the bucket arch models are established respectively.The hysteretic energy dissipation factor that can evaluate quantitively the energy dissipation capacity of mortise-tenon joint or the bucket arch is introduced,furthermore,the corresponding theoretical calculated formula of fhed is also presented,as well as the values of fhed corresponding mortise-tenon joint models and the bucket arch models are calculated respectively.The results show that,the fhed for bucket arch models are about 1~2 order of magnitude as big as that of mortise-tenon joint models;hence,it is confirmed theoretically that the bucket arch structure is the main vibration reduction and shock isolation construction in ancient Chinese timber buildings.
Publication Year: 2008
Publication Date: 2008-01-01
Language: en
Type: article
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Cited By Count: 6
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