- 摘 要
-
（上海三益建筑設計有限公司， 上海 200050）
［摘要］型鋼混凝土（SRC）柱外圍的約束箍筋可以提高柱的抗震延性。結合筆者參與的超高層結構設計案例，研究型鋼混凝土柱新型箍筋形式的受力特點，以及新型箍筋對SRC柱抗震性能的改善作用。矩形截面SRC柱采用“角部加強箍筋”的形式后，SRC柱在軸壓作用下的抗壓強度有明顯提高；圓形截面SRC柱采用“多道多邊形封閉箍”或“雙重圓箍”的形式后，箍筋的約束作用增強。上述新型箍筋形式，SRC柱的抗震性能優(yōu)越，且施工方便。
［關鍵詞］配箍形式； 型鋼混凝土柱； 箍筋約束作用； 延性
中圖分類號：TU375文獻標識碼：A文章編號：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
作者簡介：哈敏強，碩士，一級注冊結構工程師，Email：hmqha@163.com。
