摘要
本文较深入地讨论了截面形式对梁的斜截面抗裂强度Q_∫的影响,在试验研究的基础上提出了一个新的截面形状系数计算式,弥补了彭天明"集中荷载预应力混凝土梁斜截面抗袭强度计算"(河海大学学报1987年第4期)一文的不足.与试验结果的比较表明:本文提出的公式能更好地反映出Q_∫随截面形状变化的规律性.
This paper discussed and analyzes the influence of section shapes on anti-cracking shear strength Q_f. A new coefficient of section shape is advanced to remedy the defect of the paper——Caleulation of Anti-cracking Shearing Strength for Inclined Section of Prestressed Concrete Beam by the author Peng Tienming and pubhshed in Journal of Hohal University in 1987 No. 4. The comparison of calculated values with testing results shows that the formula proposed in this paper can better reflect the regularity of Q_f change with section shapes than the one in that paper.
出处
《河海大学学报（自然科学版）》
CAS
CSCD
1990年第3期99-104,共6页
Journal of Hohai University(Natural Sciences)
关键词
预应力
混凝土
梁
翼缘
斜截面
flange
anti-cracking shear strength
shear-span ratio
types of diagonal cracks
