非矩形截面柱下混凝土板的冲切强度计算.pdfVIP

33 4 V ol. 33 No. 4 20047 . 2004 Jour nal of China Univer ity of M ining T echnology Jul : 1000-1964( 2004) 04-0400-06 刘文 , 黄承逵 ( , 116024) : 鉴于我国规范对异形截面柱或荷载面的冲切强度计算未作明确规定, 根据所进 的柱截 面为三种典型异形柱( 十字形、T 形和L 形) 板柱连接冲切特性试验成果, 并结合文献试验资料 以及国外规范的作法, 提出了符合我国设计实践的非矩形截面柱的板柱冲切强度计算模式. 同时 根据大量试验资料提出了适用于不同柱型的冲切强度计算公式, 该公式不仅形式简单, 且同ACI 318规范及我国 50010-2002规范方法相比, 与不同试验结果的符合度均较好. GB : 异形柱; 钢筋混凝土板; 板柱连接; 冲切; 冲切强度 : T U 375; T U 413. 1: A - Punching Shear Strength of Slab Column Connection w ith Nonrectangular Column - , - LIU Wen ting HU ANG Cheng kui ( State Key L ab. of Coa tal Off hore Eng in. , Dalian Univ er it y of T echnology, Dalian, Liaoning 116024, China) Abstract: The reinforced concrete lab with three kind of typical pecial- haped column ( cro - haped ection, T - haped ection and L- haped ection) w ere te ted. Ba ed on the re ult and literature , a method for calculating critical perimeter of nonrectangular column and predicting the punching trength of lab w ith colum n in different hape wa propo ed. The propo ed method of prediction i relatively imple to u e. Comparing w ith the m ethod advocated by pre ent code of China and ACl, the re ult have better correlation with the variou te t re ult by mean of thi method. : ; ; - ; ; Key words nonrectangular column flat concrete lab lab colum n connection punching hear punching hear trength , , . . , , , [ 1-2] [ 3] . , . , , , . , . , . [ 2-3]