湖南大学学报（自然科学版）2016，Vol.43Issue(3)：48-54,7.
基于向量式有限元的大跨度钢结构施工力学分析方法
Construction Mechanics Analysis of Long-span Steel Structure Based on Vector Form Intrinsic Finite Element Method
摘要
Abstract
Since the long-span steel structure is prone to perform nonlinearity such as yielding rigid body motion under construction loading,construction process analysis was conducted by the Vector Form Intrinsic Finite Element method (VFIFE).Based on the basic theory of the VFIFE,the tensioning cable element was introduced to simulate the tensioning process by adjusting the length of the cable element.In addition,the jack element was used for the unloading analysis of the long-span steel structure.Moreover, the VFIFE based program was developed by the MATLAB,and compared with the conventional method by means of three FE models such as the assembly of cantilever beam,the tension forming of cable truss, and the tensioning construction of long-span truss string structure.To this end,the VFIFE theory and program were verified and validated.The result showed that the assembly,tension forming,and unloading of the long-span steel structures could be reasonably simulated by the VFIFE.关键词
大跨度钢结构/施工过程/向量式有限元/张拉索单元/千斤顶单元Key words
long-span steel structure/construction process/Vector Form Intrinsic Finite Element (VFIFE )/tensioning cable element/j ack element分类
建筑与水利引用本文复制引用
朱明亮,郭正兴..基于向量式有限元的大跨度钢结构施工力学分析方法[J].湖南大学学报（自然科学版）,2016,43(3):48-54,7.基金项目
国家自然科学基金资助项目（51308105），National Natural Science Foundation of China （）
