【摘要】 5.12汶川地震对大雁塔造成了较大的损坏,为了有效地保护大雁塔这一人类文化遗产,在震害调查与分析的基础上,运用大型有限元软件ANSYS建立大雁塔三维实体模型,进行了模态分析和时程分析,通过输入不同地震波,计算出结构的位移反应与层间位移.结果表明:不同地震波输入时结构上部位移反应均较大;塔体的最大层间位移发生在结构薄弱层第五层、第六层.在震害与理论分析的基础上,提出了大雁塔保护加固建议.更多还原

【Abstract】 Wenchuan earthquake on May 12th caused great damage to the Big Wild Goose Pagoda,a cultural heritage of mankind.In order to protect the pagoda is effectively,the large-scale finite element soft-ware ANSYS is used to establish a model based on the investigation and analysis of earthquake damage.A modal analysis and a transient analysis are then conducted.The displacement of the structure and the inter-drift of the floors are calculated by inputting different seismic waves.It is shown through the results that the upper displacements are larger and that the largest inter-drift of the tower occurs in the weak layer of fifth,sixth floor.Reinforcement proposals are proposed to protect the Great Wild Goose Pagoda on the basis of the earthquake damage and theoretical analysis.更多还原