【摘要】 为了准确评估既有建筑结构的安全性,采用基于性能的抗震设计方法,结合《民用建筑可靠性鉴定标准》和《建筑地震破坏等级划分标准》,将Pushover方法用于既有建筑结构的安全性鉴定.以都江堰1栋遭遇"5.12"汶川地震破坏的框架结构为例,评定了该结构在预估地震作用下的安全性等级和地震破坏等级.结果表明,分析结果与实际震害基本吻合,证明采用Pushover方法能有效评估既有建筑结构的安全性.更多还原

【Abstract】 In order to evaluate the safety of existing structures accurately,based on the method of performance-based seismic design and by combining with the national codes Standard for Appraiser of Reliability of Civil Building and Criteria for the Classification of the Buildings’ Seismic Damage Ranks,the pushover method was adopted to appraise the safety of existing structures.By taking a frame structure damaged in the Wenchuan earthquake in Dujiangyan City as an example,the safety and earthquake damage levels of the structure were appraised under a given earthquake action.The research shows that the analysis result is dovetailed basically with the real earthquake damage,and the safety of existing structures can be assessed effectively through the pushover method.更多还原