摘要
本文通过理论分析,得出筒体变形仪测得的变形图是筒体横截面上各点的曲率变化,同时指出了用传统的“椭圆度”概念来解释筒体变形图是不妥的。根据弹性力学理论,获得了把曲率变化同筒体环向应力联系起来的计算公式,从而提供了间接测量筒体环向应力的简便方法。经动态电阻应变仪实测,证实两者的变化规律是一致的。
According to the theoretical analysis in this paper, it has been given that deformation figures measured with the shell deformation device are curvature variations of each point on shell cross-section and in the meanwhile it is not appropriate to using the traditional idea of ellipticity to explain shell deformation figures. In accordance with the theory of elasticity, a calculating equation has been obtained which relates curvature variations with stress of shell ring direction, thus a single and convenient method for indirect measuring stress of shell ring direction has been given. By the actual measuring with the dynamic resistance strainometer, it has been confirmed that both the variational laws are the same.
出处
《水泥》
CAS
1990年第7期20-23,33,共5页
Cement
