- 摘 要
-
張宇峰 呂志濤
(東南大學土木學院 南京 210096)[提要] 用等代框架法計算板柱結構的關鍵是確定等代框架的寬度。為得到帶邊梁板柱結構的等代框架寬度取值系數(shù)的計算公式,用SAP91有限元計算程序對5組33種不同幾何參數(shù)的板柱結構進行了計算,以研究結構幾何參數(shù)對等代框架寬度取值系數(shù)的影響,并與鋼筋混凝土板柱結構的振動臺試驗結果進行了對比。結果表明,所提出的公式具有較高的計算精度。
[關鍵詞] 板柱結構 邊梁 等代框架 寬度取值系數(shù) 振動臺試驗The cquivalcnt frame mcthod is the most common mcthod for flat-plate structurcs, and how to compute the cquivalcnt frame width cocfficicnt is onc of core qucstions of the mcthod. In ordcr to gct the formulas for calcularing rhc cquivaicnt frame width cocfficicnt of flat-plate structurcs with cdge bcam, the structural program SAP91 was uscd in the clastic analysis of flat-plate structure to study the intcrnal rclationship bctwccn the cquivalcnt frame width and the structure dimcnsions. The calculatcd rcsults agrce wcll with the shaking table tcst rcsults of rcinforccd concrcte flat-plate structurcs.
Keywords: flat-plate structurc; cdge bcam; cquivalcnt framc; width cocfficicnt; shaking table tcst