程  婕，  汤红军，  裴永忠
  （中国航空规划建设发展有限公司，北京 100120）

[摘要] 天津某飞机总装厂房结构布置异于普通排架厂房，中柱列抽柱且不设支撑，边柱列设置防屈曲支撑。对其进行较为系统的抗震性能研究，分析结果表明，中柱在双向地震作用下处于双向压弯状态，大震下为结构的最薄弱环节。通过比较普通交叉支撑和防屈曲支撑( BRB)对抗震性能的影响，发现设置防屈曲支撑对大震下的结构抗震性能有一定的改善。
[关键词] 抗震性能；大柱网厂房；抽柱；双向压弯；防屈曲支撑( BRB)
中图分类号：TU973*．31    文献标识码：A  文章编号：1002-848X(2012) Sl-0148-04

Study 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)