摘要
静定结构和超静定结构具有不同的力学性质:在非荷载因素作用下,静定结构构件横截面上的内力不会发生变化,但超静定结构会发生内力变化。设计了一种实验装置,直观说明了该性质。应用功能分解法,进行了实验装置方案设计,在此基础上进行了实验装置结构设计,讨论了实验结构测量点的理论解和实验值,以及利用该装置开展实验的方法。所设计的实验装置结构简单可靠,能实现静定结构和超静定结构的快速转换,可以应用于高等学校土木工程专业"结构力学"的实验教学中,具有一定的推广应用价值。
Different mechanical property appears for a statically determinate structure and a statically indeterminate structure. For example,the internal forces have no change in action of the non-load factor in the transverse section of a statically determinate structure,while they have obviously change in the transverse section of a statically indeterminate structure. A special test apparatus was designed to display this property. The function decomposition method was applied to conceive the project of the test apparatus. The structure design of the apparatus and the relevant experimental method were discussed according to the project. The theoretical and testing value of the measuring point in the test apparatus are calculated according to the geometrical dimension of the testing structure. The structure of the designed test apparatus is simple and fast conversion can be accomplished between a statically determinate structure and a statically indeterminate structure. It is available in experimental teachingfor the course of ＂structure mechanics＂in the civil engineering.
作者
李修干
何芝仙
张伟
LI Xiu-gan a HE Zhi-xian a ZHANG Wei b(a. College of Civil Engineering and Architectur b. College of Mechanical and Automotive Engineering, Anhui Polytechnic University, Wuhu 241000, China)
出处
《重庆理工大学学报（自然科学）》
CAS
2017年第3期72-76,共5页
Journal of Chongqing University of Technology：Natural Science
基金
国家大学生创新训练计划项目(2016103630097)
安徽省教育厅教学研究重点项目(2015jyxm176)
安徽省教育厅力学实验示范中建设究项目(2015sxzx010)
2016年安徽工程大学研究生实践与创新项目
关键词
静定与超静定结构
功能分解法
非荷载因素
弯矩
a statically determinate and indeterminate structure
function decomposition method
non-load factor
bending
