- 摘 要
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慕遂峰
（中船第九設計研究院工程有限公司，上海 200063）[摘要] 針對鋼筋混凝土錯層框架結構，分別采用折減剛度的彈性有限元法（即考慮二階效應的彈性分析方法）和柱截面偏心距增大系數(shù)法（即規(guī)范中給出的通過確定計算長度來考慮二階效應的傳統(tǒng)方法）進行了二階效應的計算，研究了錯層框架結構考慮二階效應的傳統(tǒng)方法的適用范圍和計算長度取值等問題，并提出了相應的設計計算方法建議。
[關鍵詞] 鋼筋混凝土錯層框架結構；二階效應；計算長度
中圖分類號：TU375.4 文獻標識碼：A 文章編號：1002-848X(2012) Sl-0349-03Utility method considering the second effect of staggered RC frame structure
Mu Suifeng
( China Shipbuilding NDRI Engineering Co., Ltd., Shanghai 200063, China)Abstract: Two different methods considering the second effect of staggered RC frame structure was used. One is elastic finite element method of reduced rigidity( elastic analysis method considering the second order effect), and the other is the method utilizing the eccentricity enhancement coefficient of column section( the conventional method proposed in the code which considering the second effect by the determination of the calculating length).The scope of application using the conventional method to consider the second order effect of staggered RC frame structure, and the confirmation method of calculating length of the column were analyzed. Correspondingly the design calculating method suggestion is also proposed.
Keywords: staggered RC frame structure; the second order effect; calculating length
