摘要
高温下建筑材料力学性能的研究是结构抗火性能研究的基础，笔者通过对目前建筑中常用热轧Ⅱ、Ⅲ级钢筋，在一定恒定应力作用下经高温、冷却作用后的强度试验，分析了各种钢筋在不同的应力状态下经受不同历史温度（400～600℃范围内）后钢筋的极限强度、屈服强度，同时分析了不同情况下两种钢筋的强度差异。
The research on mechanical properties of building materials under high temperatures is the foundation of the research of structural fire-resistant performances. In this thesis, through the strength experiments of Grades Ⅱ and Ⅲ steel bars commonly used in structural engineering under the constant stress after elevated temperatures and cool, the ultimate stress and the yielding strength of various kinds of steel bars under different stresses after the temperatures ranging from 400℃ to 600℃ are analyzed. Meanwhile, the strength differences of the two kinds of steel bars under different conditions are also analyzed in this thesis
出处
《青岛理工大学学报》
CAS
2008年第4期1-4,共4页
Journal of Qingdao University of Technology
基金
国家自然科学基金重大国际合作研究项目(50320120156)
关键词
钢筋
高温
强度
steel bar
elevated temperature
strength
