轴压柱围套加固中应力滞后问题的理论研究  

STUDY ON THE STRESS-LAG PHENOMENON IN THE AXIAL COMPRESSION COLUMN STRENGTHENED BY THE ENCLOSURE

作　　者：潘金炎 

机构地区：[1]浙江省建筑科学设计研究院,杭州310012

出　　处：《建筑技术开发》2007年第10期7-9,共3页Building Technology Development

摘　　要：在轴压围套加固柱破坏时,围套加固部分的钢筋和混凝土强度往往达不到各自强度的极限值,其可利用的程度称为强度利用系数。通过理论分析和计算实例,阐述了轴压柱围套加固中钢筋和混凝土强度利用系数随各种因素的变化规律。The steel and concrete in the enclosure cant be used adequately when the column strengthened by the enclosure is destroyed. The serviceable degree of the steel and concrete in the enclosure is named the coefficient of strength utilization. In the paper, the rule about variety of the coefficient of strength utilization is discussed by calculation and analysis.

关 键 词：围套加固 应力滞后 强度利用系数 应变水平指标 轴压比 承载力 

分 类 号：TU375.3[建筑科学—结构工程]