摘要
本文采用按龄期调整的有效模量法，提出分阶段施工连续梁桥有限单元逐步计算法的原理与步骤，并编制了可扩充为施工控制软件的有限元分析程序．通过算例分析表明，对于采用分阶段施工的预应力混凝土桥梁，在工程控制中正确地估算徐变变形有重要意义．
According to the age adjusted effective modulus method, a computing program for the analysis of segmental built continuous beam bridges considering time dependent effects of creep and shrinkage of concrete is presented in the paper. The calculation example shows that correct estimation of creep deformation is important for building control.
关键词
连续梁桥
施工控制
逐步计算
continuous bridge
building control
step by step calculation
