The internal structure of the steel structure building with gabled frames is complex, and the spatial connection relation and structure are difficult to be expressed intuitively by the language and the two-dimensional plan. Based on Unity3D and 3DS MAX, the author develops a virtual simulation of 3D animation software for the arrangement of integral components of steel structure building with gabled frames, the demonstration of the assembly of important component nodes and the assembly of user component. This software is suitable for the steel structure design courses of civil engineering professional. The development promotes the teaching quality of the courses.%门式刚架钢结构内部结构复杂,空间连接关系和构造很难用语言和二维图纸直观地表现出来.本文针对土木工程专业钢结构设计课程,基于Unity3D和3DS MAX开发了门式刚架结构整体构件布置、重要构件节点组装演示、自定义构件组装的辅助教学虚拟仿真三维动画软件,直观生动地展示了门式刚架结构的三维构造和组装过程.动画的研究开发对钢结构课程的课堂教学质量的提高有着促进作用.
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