Experimental analysis on shaking table tests of Dougong in Tianwang Hall, Luzhi, Ming dynasty
Que Zeli , Li Zherui , Zhang Beibei , Hou Tongyu , Pan Biao
DOI:
Received December 26, 2014,Revised , Accepted , Available online July 22, 2015
Volume ,2015,Pages 26-34
- Abstract
Taking the Dougong of Tianwang palace in Baosheng Temple, Luzhi as a case, experimental study was carried out on shaking table tests of the full-scale pine Dougong model. Analysing the acceleration and dynamic magnification coefficient trends, the process of displacement characteristics of Dougong in response to changes of vibration, and the rotary and sliding displacement values of Dougong and each component at the biggest deformation moments. Major conclusions are as follows, Seismic acceleration indicates the response of seismic intensity, instead of the maximum deformation of the Dougong specimens. Vibration frequency has important influence on the degree of rotation deformation, while amplitude has decisive effect on the sliding displacement of each component. The maximum deformation of Dougong and each component all have a strong correlation, among which the rotary displacement of Ludou and Huagong occupies a dominant position. Huagong with xia-ang, which is a special part of Dougong, is mainly for decoration and it's weak on connection node position during the shaking table tests. So more attention and relevant reinforcement measures should be taken on this part in the maintenance and conservation of cultural relics.