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介绍了预应力混凝土斜拉桥施工过程的仿真分析方法。该方法通过引入 CR列式法考虑结构的几何非线性行为、引入温度场理论计算温度的影响、采用有限元步进法结合随龄期调整的有效模量法考虑混凝土收缩徐变的影响 ,同时收缩徐变参数及模式可以根据实际材料特性而选取。该方法与以往的方法相比分析精度更高。利用该方法开发的软件 1998年在汕头石大桥上应用 ,受到专家的好评
The simulation analysis of the construction process of prestressed concrete cable-stayed bridges is introduced. This method considers the geometric nonlinear behavior of the structure by introducing the CR-column method, introduces the temperature field theory to calculate the influence of temperature, and uses the finite element step method combined with the age-adjusted effective modulus method to consider the influence of concrete shrinkage and creep. Simultaneously Shrinkage creep parameters and modes can be selected based on the actual material properties. This method is more accurate than the conventional method. The software developed by this method was applied to Shantou stone bridge in 1998 and was praised by experts