摘要
本文以复合材料层合板理论为基础,用最小势能原理建立了一种能对工程中常见的双轴对称铺设复合材料薄壁箱梁的剪力滞后及剪切变形效应进行分析的方法.本文方法可计及各种耦合效应,相应的计算公式简便、实用,不但可满足截面上的平衡条件,而且当材料为均质时均可退化为各向同性材料梁的公式.最后对数值结果进行了分析和讨论,并给出了与模型试验结果的比较.
In this paper, based on the theory of composite laminated plates, an analysis method for the shear lag and shear deformation effects, including various coupled effects, on symmetrically laminated composite thin-walled box girder is established by means of the principle of minimum potential energy.The method is simple and practical. The formulas given by this method not only satisfies the equilibrium conditions on the cross section but also satisies the conditions for with homogeneous materials. It can also be simplified as the relevant formulas for beams with isotropic material. Finally, the numerical result are given, and deflection values are compared with those of the model test.
出处
《土木工程学报》
EI
CSCD
北大核心
1996年第4期31-38,共8页
China Civil Engineering Journal
