防屈曲支撐在單層廠房中的應(yīng)用分析
程鵬艷1，高向宇1，尹學(xué)軍2
- 摘 要
-
（1北京工業(yè)大學(xué)，北京 100124；2 青島科而泰環(huán)境控制技術(shù)有限公司，青島266101）[摘要]：單層廠房柱間交叉支撐在抗震設(shè)計時考慮到壓桿屈曲一般只計入受拉桿作用，造成計算結(jié)果與實際情況存在較大差別，且材料使用并不充分。本文以某工程案例為背景，采用防屈曲支撐替代傳統(tǒng)柱間支撐，通過SAP2000建模對比分析了原結(jié)構(gòu)與防屈曲支撐結(jié)構(gòu)的差別，包括模態(tài)、反應(yīng)譜結(jié)果、非線性推覆分析和時程分析結(jié)果，說明在單廠中使用防屈曲支撐進行支撐替換的可行性。對減震方案合理性也進行了討論。[關(guān)鍵字]：防屈曲支撐;單層廠房;消能減震中圖分類號：TU352 文獻標(biāo)識碼：A 文章編號：1002-848X(2013)S1-0581-04Application analysis of buckling-restrained brace in single-storey factoryCHENG Pengyan1, GAO Xiangyu1, YIN Xuejun2（1 Beijing University of Technology, Beijing 100124, China; 2 Qingdao Create Environment Control Technology Co.,Ltd.，Qingdao 266101, China）Abstract: In the design of a single-storey factory building, the crossing braces generally has only been considered the tension role under the action of the earthquake, in order to avoid the strut buckling, resulting a big difference between the calculation result and the actual situation, so that the materials is not being fully used. In this paper, taking an engineering case as an example, the traditional struts have been replaced with buckling-restrained braces. Comparative analysis has been made by SAP2000 software, including the vibration modes, the seismic response spectrum analysis, nonlinear analysis under both push-over and time history loading conditions. It is illustrated that replacing the struts with buckling-restrained braces feasible. The rationality of different seismic reduction schemes is also discussed.Keywords: buckling-restrained brace; industrial factory building; energy dissipation and seismic reduction
