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程 婕， 湯紅軍， 裴永忠
（中國航空規(guī)劃建設(shè)發(fā)展有限公司，北京 100120）[摘要] 天津某飛機總裝廠房結(jié)構(gòu)布置異于普通排架廠房，中柱列抽柱且不設(shè)支撐，邊柱列設(shè)置防屈曲支撐。對其進行較為系統(tǒng)的抗震性能研究，分析結(jié)果表明，中柱在雙向地震作用下處于雙向壓彎狀態(tài)，大震下為結(jié)構(gòu)的最薄弱環(huán)節(jié)。通過比較普通交叉支撐和防屈曲支撐( BRB)對抗震性能的影響，發(fā)現(xiàn)設(shè)置防屈曲支撐對大震下的結(jié)構(gòu)抗震性能有一定的改善。
[關(guān)鍵詞] 抗震性能；大柱網(wǎng)廠房；抽柱；雙向壓彎；防屈曲支撐( BRB)
中圖分類號：TU973*．31 文獻標(biāo)識碼：A 文章編號：1002-848X(2012) Sl-0148-04Study on seismic performance of the aircraft assembly plant in Tianjin
Cheng Jie, Tang Hongjun, Pei Yongzhong
( China Aviation Planning and Construction Development Co., Ltd., Beijing 100120, China)Abstract: The structural arrangement of the assembly plant in Tianjin is different from the ordinary bent structure, whose center columns are locally removed, while the buckling-restrained braces( BRB) are set only in the side columns. By detail seismic research, it is found that the center columns are subjected to axial compression and bi-axial bending moment when bi-directional horizontal seismic action is considered, and become the weakest link of the structure under rare earthquake. By comparison with ordinary cross-brace, the BRB improve the seismic performance of the structure under rare earthquake to some extent.
Keywords: seismic performance; large column-grid factory; column-removed; axial compression and bi-axial bending moment; buckling-restrained brace (BRB)
