摘要
本文通过对４４个棱柱体试件的应力．应变全过程及其变形指标的试验研究，分析了混凝土在经历不同高温（１００℃－６００℃）后应力一应变曲线各阶段的特点，并指出了高温后混凝土的变形特性与常温下混凝土的不同之处，最后建立了相应的应力一应变全曲线的方程描述。
This paper introduces the investigation of the complete stress-strain curves of concrete underhigh temperatures from 100t to 600t, 44 prism specimens(100mm x 100mm x 315mm) were tested, and the staged characteristics of stress-strain curves Of concrete subjected to high temperaturewere analyzed with difference Of deformation properties between concrete under ordinals temperatareand those under high temperatures pointed out. Finally, the generalized stress-strain analyticalexpression was established.
出处
《建筑结构学报》
EI
CAS
CSCD
北大核心
1999年第5期42-49,共8页
Journal of Building Structures
基金
国家自然科学基金
黑龙江省自然科学基金
关键词
高温
变形特性
本构关系
试验
混凝土结构
high temperature, complete stress-strain curves, deformation characteristics
