防屈曲偏心支撑混凝土框架结构恢复力模型研究  

STUDY ON RESTORING-FORCE MODEL OF THE ECCENTRICALLY BUCKLING-RESTRAINED BRACED REINFORCED CONCRETE FRAMES

作　　者：刘如月[1] 杨勇[1] 伊波松 马晨光[1] 王婷[1] 韦超谋 叶明坤 

机构地区：[1]西安建筑科技大学土木工程学院,西安710055 [2]柳州东方工程橡胶制品有限公司,广西柳州545005

出　　处：《工业建筑》2016年第4期31-35,共5页Industrial Construction

基　　金：陕西省教育厅科技计划项目(14JF014);柳州欧维姆工程机械有限公司科技项目;陕西省重点科技创新团队计划(2014kct-31)

摘　　要：对防屈曲偏心支撑混凝土框架结构(BRB frame)进行低周反复试验研究,对试验得到的滞回曲线及骨架曲线进行分析,在已有恢复力模型的基础上,简化得到了防屈曲偏心支撑框架结构的恢复力模型。通过实测滞回曲线与所建立恢复力模型的分析对比,结果表明:所建立的恢复力模型和实测滞回曲线吻合较好,该模型能够较好地描述防屈曲偏心支撑框架在反复荷载作用下的滞回特性。In this paper,the seismic performance of a full-scale eccentrically buckling-restrained braced reinforced concrete frame specimen was tested. The frame had three stories and one bay. The specimen was tested under lowcycle loading. Based on the test results,and with full analysis of the hysteresis curve and skeleton curves,a simplified restoring-force model was founded and proposed. Compared to the experimental hysteresis curves,it was indicated that the proposed restoring-force models was well. And furthermore this proposed restoring-force model could well enough to characterize the hysteresis performance of buckling-restrained braced-frame very well.

关 键 词：防屈曲支撑 偏心支撑 钢筋混凝土框架 骨架曲线 恢复力模型 

分 类 号：TU375.4[建筑科学—结构工程]