摘要
采用有限元法分析水工钢闸门在多轮荷载作用下轨道与混凝土基础接触压应力分布,考虑混凝土强度、轨道高度、轨道底板宽度等因素的影响,对双轮和3轮作用情况分别进行了研究。结果表明:轨道与混凝土基础最大接触压应力随滚轮间距的增大而减小;当滚轮间距超过3倍轨道高度时,滚轮的相互作用对其影响很小;滚轮间距小于3倍轨道高度时,需考虑滚轮间的相互影响,对此提出了相应的计算方法。针对混凝土基础的受力特点,对轨道与混凝土基础的最大接触压应力限值问题做了探讨。
The contact compression stress between hydraulic steel gate track and concrete foundation under multiple-wheel loadings is analyzed using finite element method.Considering the jointed influences of concrete strength,track height and lower flange breadth,the contact compression stress under double-wheel and three-wheel loadings are studied separately.The results indicate that the maximum contact compression stress between hydraulic track and concrete foundation decreases with the increase of the wheel space length;the influence of the interaction of wheels on the maximum contact compression stress is small when the wheel space length exceeds three times the track height;the influence becomes big when the wheel space length is smaller than three times the track height.The corresponding calculation method is presented in this paper.The limited value of the maximum contact compression stress between hydraulic track and concrete foundation is also studied.
出处
《人民长江》
北大核心
2009年第17期55-57,共3页
Yangtze River
基金
江苏省研究生培养创新工程(CX07B_129z)
山东省教育厅资助项目(J07YE04-32426)
关键词
多轮
轨道
混凝土基础
接触压应力
钢闸门
multiple wheels
track
concrete foundation
contact compression stress
steel gate
