摘要
通过对温度变化时一个典型的超静定结构问题的解答分析,并以此做为力学基本模型,结合结构力学的基本概念讲述了结构概念分析的基本概念和分析方法;并利用延拓分析的方法,以力学基本模型分析作为出发点,通过不断延拓分析的过程解决了一系列具有工程实际背景的问题.得出了在均匀温度变化作用下任意截面形式结构的内力图及变形图;多层框架结构二层以上内力迅速衰减,底层弯矩响应最为显著;排架弯矩响应随跨度增大而变大,最大值出现在最外侧立柱上,这些结论对结构设计具有实际指导意义.
Based on the typical analysis of a statically indeterminate structure mechanics problem, under the temperature effect, the basic concepts and methods of conception analysis are described and discussed. Combined with the continuation method, using basic analysis model, a series of practical engineering problems are solved. The bending moment and deformation of arbitrary cross-section form structure are deduced and discussed. The multi-layer frame and bent frame are also discussed and to get that the structure frame bottom in the most sensitive part to response; the maximum internal force of bent frame is in the outside column. The conclusion has application value to structure design.
出处
《湖南城市学院学报（自然科学版）》
CAS
2017年第6期7-10,共4页
Journal of Hunan City University:Natural Science
关键词
温度作用
超静定结构
概念分析
延拓方法
temperature effect
statically indeterminate structure
conception analysis
continuation method
