屈曲约束支撑(JY-SD型)在抗震加固中的应用  

Application of JY-SD-type Buckling Restrained Braces (BRB/UBB) in Seismic Strenthening

作　　者：高杰[1] 薛彦涛[1] 王磊[1] 

机构地区：[1]中国建筑科学研究院,北京100013

出　　处：《土木工程与管理学报》2011年第3期339-343,共5页Journal of Civil Engineering and Management

基　　金：国家科技支撑计划(2009BAJ28B03)

摘　　要：汶川地震以来国家提高了中小学校抗震设防水准,为此全国大部分既有中小学校校舍需抗震加固。屈曲约束支撑是一种特殊的中心支撑,是中心支撑和金属屈服型耗能器的结合体,可用于钢结构耗能减震设计、钢筋混凝土结构抗震设计、钢筋混凝土框架结构抗震加固等。屈曲约束支撑相对普通支撑具有更饱满的滞回曲线,且受拉受压均能屈服,工艺简单可操作性强。应用于抗震加固领域可以大大缩短施工工期,减小加固工作量,节约二次装修费用。Since the government raised the earthquake seismic f or tification level of schools,most of primary and middle schools in the country n eed seismic strenthening.Buckling restrained braces is a special center support,it＇s a combination of the central support and the metal yield damper.It can b e used for steel designing,reinforced concrete structural designing,seismic st rengthening of reinforced concrete frame and so on.Buckling restrained braces h ave a more full hysteresis curve compare with ordinary braces and it will be yie ld by compression and tension.At the same time,the technology is simple and fe asible.Using the buckling restrained braces in the field of seismic strenthening can greatly shor ten the construction period,reducing the workload of reinforcement,saving cost s of re-decoration.

关 键 词：屈曲约束支撑 抗震加固 

分 类 号：TU352.1[建筑科学—结构工程]