对称超静定结构内力图校核问题的讨论  

Discussion on check of internal force diagram of symmetrical statically indeterminate structure

作　　者：张洪海[1] 王春彦[1] 黄海燕[1] 

机构地区：[1]云南农业大学水利学院,云南昆明650201

出　　处：《山西建筑》2016年第13期37-38,共2页Shanxi Architecture

摘　　要：介绍了校核超静定结构内力图的主要条件,以某对称超静定刚架为例,分析了对称超静定结构内力图的校核问题,指出对于对称结构,若其弯矩图为反对称,选用单位弯矩图为正对称的基本结构则达不到校核的目的,反之亦然。This paper introduced the main conditions of checking of statically indeterminate structure internal force diagram,taking a symmetrical statically indeterminate frame as an example,analyzed the check problem of symmetry statically indeterminate structure internal force diagram,pointed out to symmetrical structure,if the moment graph was anti-symmetric,chose the units bending moment graph as the positive asymmetry basic structure could not reach the purpose of checking,and vice versa.

关 键 词：结构力学 对称结构 弯矩图 位移条件 

分 类 号：O342[理学—固体力学]