摘要
对预应力混凝土结构截面开裂后的受力性能进行分析,推导截面应力计算表达式.从理论上分析开裂后相对压区高度的计算方法.给出的整体计算过程,便于编程计算机计算,也适用于计算器手算.本文结果也可用于偏心受压或偏心受拉构件开裂后的计算.
This paper analyses the characteristics of prestressed concrete structures after cracking in which the general calculating formulas have been derived. A theoretic method for determing the position of neutral axis is discussed in detail. The procedure of calculating the stresses of concrete, steel and tendons is made up. It is convenient to colculate by computer or by calculator in practic design. The results of the paper can also be applied to research the stresses of reinforced concrete structures subjected to eccentric compressive or tensile force after cracking.
出处
《南京建筑工程学院学报》
1996年第2期1-12,共12页
Journal of Nanjing Architectural and Civil Engineering Institute(Natural Science)
基金
国家自然科学基金资助项目
关键词
预应力混凝土
解析解
开裂
内力
prestresed concrete
stresses
analytic solutions
cracking
