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高政國 鄔瑞鋒
(大連理工大學 大連 116023)[提要] 介紹了最大位移,能量雙重破壞準則,并以此準則和最大位移破壞準則用JC法計算了一幢八層鋼筋混凝土,空心磚組合砌體房屋的可靠度。比較分析了兩種破壞準則在鋼筋混凝土-空心磚組合砌體結構可靠性分析中的差異。在對20道組合砌體墻片試驗分析的基礎上,分析了滯回包絡線面積代表的能量和最大位移對結構破壞描述的差異,得出了對工程有意義的結論。
[關鍵詞] 破壞準則 滯回曲線 鋼筋混凝土-空心磚砌體組合墻結構 可靠性分析A double damage cniterion expressed in terms of maximum deformation and hysteresis energy is introduced. According to tlus criterion and the maximum deformation criterion, the reliability of a 8-storey RC-brick composite masonry building is calculated by JC method. The two damage criteria, which are used in reliability analysis of RGbrick composite masonry system, are compared. Based on the test and analysis of 20 RC-brick composite masonry walls, the relationship between the energy denoted by the area of hysteresis curve and the mtcamum deformation is studied. And a valuable conclusion is drawn.
Keywords: damage criterion;hsteresis curve;RC-brick composite masonry structure;reliability analysis