輕型鋼結(jié)構(gòu)變截面門式剛架的穩(wěn)定計算
陳紹蕃*
- 摘 要
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陳紹蕃*
（西安建筑科技大學(xué) 710055）[提要] 論述輕型變截面門式剛架鋼柱穩(wěn)定計算公式的特點及楔形柱在剛架平面內(nèi)、平面外的計算長度系數(shù)和等效彎矩系數(shù)的確定方法，方法也可用于橫梁為變截面的剛架。
[關(guān)鍵詞] 鋼結(jié)構(gòu) 剛架 穩(wěn)定性 楔形構(gòu)件 計算長度系數(shù) 等效彎矩系數(shù)Features of column stability calculation in light portal frames are discussed. Methods for determining inplane and out-of -plane effective length coefficients as well as equivalent moment factors are presented for tapered columns. Use of tapered rafters is also considered.
Keywords: steel frame; stability; tapered member; effective length coefficient;equivalent moment factor
