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本文提出了一种新的有限条单元——铰接板弯曲条单元,用以分析正交的铰接板桥,并导出了相应的应变矩阵、条元刚度矩阵及荷载列阵。通过实例计算,结果表明:本文提出的方法具有简便、精度较高、适用性强的优点,它为铰接板桥的实用计算与应用计算机计算寻求了一条新途径。
In this paper, we propose a new finite strip unit - flexural strip unit for hinge plates to analyze orthogonal hinge plates and bridges, and derive the corresponding strain matrix, elemental stiffness matrix and load array. The results show that the method proposed in this paper has the advantages of simplicity, high precision and applicability. It provides a new way for practical calculation and application of computer calculation of hinge plate bridge.