简支梁在周期荷载作用下的稳定性研究分析方法  

Stability Analysis Method of Simply Supported Beam Under Periodic Load

作　　者：蒋春霞 JIANG Chunxia(Guangdong Institute of Technology,Zhaoqing 526100)

机构地区：[1]广东理工学院

出　　处：《现代制造技术与装备》2019年第12期4-5,共2页Modern Manufacturing Technology and Equipment

基　　金：广东理工学院工程造价专业教学团队(JXTD2018002);广东理工学院建筑材料精品课程(JPKC2016002)

摘　　要：利用现有的计算机软件手段,通过求解简支梁的自然频率和静力屈曲(失稳)荷载,得到结构的动力失稳区域条件,再考虑阻尼对不稳定条件的影响,用一个阻尼矩阵方程式表来表示。实验结果表明:利用这种方法得到的结论与以往的理论计算方法得到的结果高度一致,但这种方法利用计算机软件更加简单易懂,且操作方便、精度高,完全满足工程设计的需要。By means of the available computer software,the natural frequency and static buckling (buckling) load of simply supported beams are solved to obtain the region conditions of dynamic buckling of structures Considering the effect of damping on the instability condition,a damping matrix equation is used to express it.The experimental results show that the results obtained by this method are highly consistent with those obtained by previous theoretical calculation methods,but this method makes use of computer software,so it is more simple and easy to understand,easy to operate and high precision Fully meet the needs of engineering design.

关 键 词：简支梁 周期荷载 稳定性 

分 类 号：TU312[建筑科学—结构工程]