摘要
混凝土框架节点是框架结构的传力枢纽,是框架梁柱构件的交接处,水平地震作用下,节点处承受较大的水平剪力,核心区发生剪切破坏,使结构处于极为不利状态,按照"强节点弱构件"的抗震设计理念,节点的破坏要后置于梁柱的破坏.要保证节点核心区不发生过早的剪切破坏,主要考虑两个因素:①核心区截面尺寸;②核心区混凝土极限压应变.
The concrete frame node is frame structure of force transmission hub and beam-column component junction.Under horizontal earthquake effect,shear failure would occurred in frame node and make structure in danger,according to ＂strong node weak component＂ seismic design concept,the failure of node is lag behind of beam-column damage.To ensure that node core does not occur premature shear failure,main consideration to two factors：（1） the core section size;（2） core concrete ultimate compressive strain.
出处
《兰州工业高等专科学校学报》
2011年第2期27-30,共4页
Journal of Lanzhou Higher Polytechnical College
关键词
混凝土极限压应变
节点核心区
截面尺寸
锚固
concrete ultimate compressive strain
node core
section size
anchorage
