次梁与混凝土边框梁或外墙整浇结构设计方法的探讨  

APPROACH TO DESING METHOD OF REINFORCED STRUCTURE OF SECONDARY BEAM SUPPORTED BY EXTERNAL FRAMED GIRDER OR WALL

作　　者：刘军[1] 

机构地区：[1]北京蓝图工程设计有限公司,北京100029

出　　处：《工业建筑》2006年第z1期1035-1038,共4页Industrial Construction

摘　　要：次梁与混凝土边框梁或外墙整浇结构属于钢筋混凝土超静定结构,混凝土边框梁或外墙实际为弯剪扭共同作用下的构件,国内外工程界常用的设计方法是假定边框梁或外墙对次梁的约束为零的刚度法进行结构设计,而我国《混凝土结构设计规范》(GB50010-2002)对这种设计方法没有具体的规定。通过对次梁与混凝土边梁或外墙整浇结构的协调扭矩的研究,提出了运用这种设计方法时应注意的问题,以便在设计中把握产生不安全的临界情况。Reinforced structure of secondary beam supported by external framet girder or wall is a redundant structure,and the external framed girder or wall is in fact the RC members under bend,shear and torsion for which a method taking no account of torsion rigidity used both at home and abroad but there have no specific requirements in 'Code for Design of Concrete Structures'(GB50010-2002)of China.By studying the design method of compatibility torsion,the problems needing attention in using the design method are presented.Unsafe situation should be controlled.

关 键 词：次梁 边框梁或外墙 协调扭矩 

分 类 号：TU375[建筑科学—结构工程]