基于ANSYS的预应力混凝土曲线梁桥三维施工仿真分析

简要介绍了ANSYS软件的基本功能及其相应的二次开发工具。然后,重点讨论了基于ANSYS软件开发预应力混凝土曲线梁桥施工仿真程序中存在的一些问题。最后,利用已开发好的ANSYS软件对一座在建的预应力混凝土曲线连续刚构桥进行了三维施工仿真分析,结果表明,利用现有大型有限元软件ANSYS的二次开发工具进行预应力混凝土曲线梁桥静力问题的求解是可行的,也是有效的,为今后同类桥梁的分析提供了新的方法和途径。

Three-dimensional Simulation Analysis of Prestressed Concrete Curved Beam Bridges During Construction

ANSYS is powerful finite element analysis software.In this paper,the fundamental features of ANSYS software are presented.ANSYS provides three programming techniques to users.These programming techniques include the user interface design language(UIDL),ANSYS parametric design language(APDL) and user programmable features(UPFs).Based on the APDL programming technique,a fundamental procedure of developing a constructed prestressed concrete curved beam bridge simulation program is developed.Some problems in developing a constructed prestressed concrete curved beam bridge simulation program based on ANSYS software are discussed and some suggestions are given.Finally,the developed program is applied to analyze static behavior of a constructed prestressed concrete curved beam bridge.The results show that unitizing existing finite element software such as ANSYS for the static analysis of constructed prestressed concrete curved beam bridges is feasible and efficient.