摘要
介绍了一种在复杂应力状态下的混凝土强度双剪三参数准则模式,结合预应力混凝土梁斜截面抗剪强度研究,分析预应力混凝土在双轴应力状态下强度问题,提出考虑混凝土强度提高的竖向预应力计算公式。
This paper introduces a concrete strength criterion in the state of complicated stress, namely a pattern of double-shear strength criterion with three parameters. Combining the study of the bevel sections anti-shear strength of pre-stressed concrete beam, the problems how to enhance the strength of the concrete in the state of double-axis stress is analyzed, and brings forward the vertical pre-stressed calculation formula in consideration of enhancing concrete strength.
出处
《公路交通科技》
CAS
CSCD
北大核心
2004年第8期45-48,共4页
Journal of Highway and Transportation Research and Development
基金
湖北省自然科学基金(2001ABB084)
湖北省交通科技项目资助(鄂交科教[2002]466号)
关键词
混凝土强度准则
预应力混凝土梁
双轴应力
Concrete strength criterion
Prestressed concrete beam
Double-axis stress
