屈曲约束支撑(JY-SD型)在抗震加固中的应用
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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.
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.
引文
[1]GB 50009-2006,建筑结构荷载规范[S].
[2]GB50011-2010,建筑抗震设计规范[S].
[3]结构振动控制-主动、半主动和智能控制[M].北京:科学出版社,2003.
[4]王华琪,丁洁民,姚兴华,等.曲约束支撑理论分析与有限元模拟[J].沈阳建筑大学学报,2008,24(2):191-195.
[5]谢强,赵亮.屈曲约束支撑的研究进展及其在结构抗震加固中的应用[J].地震工程与工程震动,2006,26(3):100-103.
[6]社团法人.被动减震结构设计施工手册[M].蒋通.北京:中国建筑工业出版社,2008.
[2]GB50011-2010,建筑抗震设计规范[S].
[3]结构振动控制-主动、半主动和智能控制[M].北京:科学出版社,2003.
[4]王华琪,丁洁民,姚兴华,等.曲约束支撑理论分析与有限元模拟[J].沈阳建筑大学学报,2008,24(2):191-195.
[5]谢强,赵亮.屈曲约束支撑的研究进展及其在结构抗震加固中的应用[J].地震工程与工程震动,2006,26(3):100-103.
[6]社团法人.被动减震结构设计施工手册[M].蒋通.北京:中国建筑工业出版社,2008.
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