摘要
提出了一个对后张有粘结部分预应力混凝土连续梁结构的全过程非线性分析方法。依据双重M—(?)折线关系,利用杆件有限元和惯用的增量法原理进行近似求解;初步考虑了混凝土的收缩、徐变及钢筋的松驰对预应力混凝土连续梁的非线性影响,并编有计算机计算程序PPCNA,可在IBM微机上进行计算;计算值与试验值吻合较好。
A nonliner analysis method of post-tensioning bond partially prestressed continuous concrete beam is presented. Finite elements of member and common increment method, basing on the double 'M-ψ' fold curves, are used in the method that has tentatively considered the nonlinear effects of shrinkage, creep of the concrete and the relaxation of prestressed steel. Besides, the PPCNA which is operafed on IBM computer is programed . The calculating results coincide with the experiment results very well.
出处
《西北建筑工程学院学报（自然科学版）》
1993年第1期15-22,共8页
Journal of Northwestern Institute of Architectural Engineering
关键词
预应力混凝土
连续梁
非线性
partially prestressed continuous concrete beam, double M-ψ relationship, secondary moment, increment method
