- 摘 要
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徐繼東，黃坤耀，李 靜
(上海維固建筑結(jié)構(gòu)設(shè)計有限公司，上海200235)[摘要] 采用時程分析法對上海外灘的一幢歷史建筑進行了彈塑性分析，以結(jié)構(gòu)的層問位移和主要構(gòu)件的承載力需求作為性能目標，通過設(shè)置防屈曲耗能支撐控制結(jié)構(gòu)在小震和大震下的性能指標，分析表明采用防屈曲耗能支撐后結(jié)構(gòu)的整體性能指標能夠滿足“小震不壞、中震可修、大震不倒”的抗震設(shè)防目標，主要構(gòu)件的加固量大幅度減少，對原結(jié)構(gòu)的破壞和影響降到最低。
[關(guān)鍵詞] 防屈曲支撐；歷史建筑；彈塑性分析；加固修復(fù)Application of buckling restrained brace in strengthening of a historical building
Xu Jidong, Huang Kunyao, Li Jing
( Shanghai WEGO Building Structure Design Co., Ltd., Shanghai 200235, China)Abstract: The time history analysis method is used in elasto-plastic analysis for a historical building at Shanghai Bund. With structural storey drift and loading requirement of main components as the character aim, the character index of buckling restrained brace is set with the assumption ofunder small and large earthquakes. The analysis result showed that by using buckling restrained brace, the integrity of whole structure could realize the anti-seisnuc aim of "low damage in small earthquake, repairable under moderate earthquake, low collapsing under strong earthquake". The amount of reinforcement work on mam components is greatly reduced, and the destruction and influence of earthquake on original structure decrease to mimmum.
Keywords: buckling restrained brace; historical building; elasto-plastic analysis; strengthening and renovation
