屈曲约束支撑(JY-SD型)在抗震加固中的应用

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.

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

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 brac...