帶加強層超高層結構受力性能研究及設計建議
楊克家，梁興文，李波
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（西安建筑科技大學結構工程與抗震教育部重點實驗室，710055）［提要］在已有的簡化理論分析結果基礎上，對帶加強層高層建筑結構進行空間建模，研究了倒三角形和均布側向荷載作用下結構的頂點位移、框架柱內力與加強層數(shù)量、加強層伸臂與內筒線剛度比、外柱與內筒的剛度比的關系。通過一系列數(shù)值計算，分析了帶加強層高層建筑結構的受力性能，通過側移及內力與加強層位置、結構構件的剛度比等關系，得出了合理的剛度比取值范圍及限值。研究結果可供實際工程參考。［關鍵詞］高層建筑；水平加強層；伸臂；剛度比限值Mechanical Performance and Design Suggestions of Outrigger Braced Tall Building Structures/Yang Kejia, Liang Xingwen, Li Bo(Key Lab of Structural Engineering and Vibration of China Education Ministry, Xi′an University of Architecture and Technology，Xi′an 710055,China)Abstract:Based on theoretical analysis results of simplified planar structures,it studies the influence factors to roof displacement and internal force of a spatial structure subjected to uniform load and load with a inverted triangular distribution. The factors obtained from simplified theoretical analysis include location and number of outriggers and stiffness ratio of outriggers to core tube and side columns to core tube. Using numerical calculation, it analyzes the stress characteristic of this kind of structure and proposed a rational stiffness ratio range and limit of outriggers to core tube.Keywords:tall building; horizontal outrigger story; outrigger; stiffness ratio limit*國家自然科學基金資助項目（50678146）。
