（上海三益建筑设计有限公司， 上海 200050）

［摘要］型钢混凝土（SRC）柱外围的约束箍筋可以提高柱的抗震延性。结合笔者参与的超高层结构设计案例，研究型钢混凝土柱新型箍筋形式的受力特点，以及新型箍筋对SRC柱抗震性能的改善作用。矩形截面SRC柱采用“角部加强箍筋”的形式后，SRC柱在轴压作用下的抗压强度有明显提高；圆形截面SRC柱采用“多道多边形封闭箍”或“双重圆箍”的形式后，箍筋的约束作用增强。上述新型箍筋形式，SRC柱的抗震性能优越，且施工方便。

［关键词］配箍形式； 型钢混凝土柱； 箍筋约束作用； 延性

中图分类号：TU375文献标识码：A文章编号：1002-848X(2020)02-0090-06

Application and research of SRC columns with new stirrups configuration

Ha Minqiang

(Shanghai Sunyat Architecture Design Co., Ltd., Shanghai 200050, China)

Abstract:The  seismic ductility of steel reinforced concrete(SRC) frame  column is improved by the confinement of external stirrups. Combined with structural design cases of super high-rise building, the structural characteristics and improvement of the seismic performance of SRC column with new stirrups configuration were studied. For rectangular SRC column with reinforced corner stirrup, the compression strength is improved under the local axial pressure. For circular SRC column with multiple polygon stirrups or dual round stirrups, the confinement of stirrups is enhanced. The seismic behavior of SRC column with new stirrups configuration is superior, and the construction is convenient.

Keywords:stirrup configuration; steel reinforced concrete column; the function of stirrup confined; ductility

作者简介：哈敏强，硕士，一级注册结构工程师，Email：hmqha@163.com。