地震荷载下莫高窟围岩动态损伤特性研究

RESEARCH ON DYNAMIC DAMAGE CHARACTERISTICS OF COUNTRY ROCK OF MOGAO GROTTOES UNDER EARTHQUAKE LOADING

摘要:

本文以敦煌莫高窟为研究对象,阐述了地震荷载下洞窟围岩动态损伤的影响因素;采用动力有限元法,从地震动特性入手,分析研究了地震作用对洞窟围岩及其附属构筑物可能造成的损坏,为石窟文物地震安全评估及防灾对策研究提供了依据。

Abstract:

In this paper, taking Mogao Grottoes in Dunhuang, Gansu province, as the research object, the influence factors of dynamic damage for country rock of the grottoes under earthquake loading are explained. Using dynamic FEM, and based on the characteristics of ground motion caused by earthquake, the damage to the country rock and the subsidiary structures in earthquake is analyzed. The result could be used in the assessing earthquake security of historical relic grottoes and preventive measures.