Seismic Stability Analysis for Caves with Gable Ceiling in Mogao Grottoes under the Vertical Earthquake Load
(0) Gable ceiling was constructed in some of the caves in Mogao Grottoes.This design enriches the internal spatial structure of a grotto and is the integration of Chinese traditional and Buddhist grotto construction.The design is so unique and the rock mechanics hidden behind is so enormous that there are rays of wisdom of ancient Chinese on grotto engineering shining from the ceiling.There are still many questions on the design to be solved.The authors have chosen cave 254 of the Mogao Grottoes,which has a typical gable ceiling,for seismic stability analysis.3D computational model for the cave was constructed and vertical earthquake load was used in the analysis.Using input of various earthquake acceleration time intervals,rock stress has been analysed in four different simulation models.The result highlights critical positions for grottoes reinforcement,and provides scientific evidence for conservation and reinforcement engineering for protection of the grottoes from earthquake damage.
gable ceiling Wall Rock Vertical Seismic Load Finite Element Simulation
SHI Yucheng QIU Rendong WANG Xudong GUO Qinglin
China Seismological Bureau,Lanzhou Institute of seismology,Lanzhou Base of Institute of Earthquake P DunHuang Academy,DunHuang,Gansu,China
国际会议
甘肃敦煌
英文
211-215
2008-09-22（万方平台首次上网日期，不代表论文的发表时间）