弹性支座分析方法及其应用

THE ELASTIC SUPPORT ANALYSIS METHOD AND ITS APPLICATION

  • 摘要: 针对结构杆件之间真实的联系和约束, 在结构力学常用支座的基础上, 提出弹性支座概念. 建立弹性支座两种基本体系, 解两种反馈基本力法方程, 导出杆端两个方向的约束刚度递推计算公式. 提出弹性支座基本分析方法. 给出弹性支座分析方法的有限元形式. 应用弹性支座分析方法, 导出一次弯距分配法, 将高层结构内力计算方法------分层法、D值法提升到一个更高的水平. 该法对弹性结构内力分析计算工程实践应用和教学有参考价值.

     

    Abstract: The concept of elastic support is defined in thispaper, for the real contacts and constraints between structural bars, basedon the concept of conventional support in structural mechanics. Two basic systems ofelastic supports are established, with two feedback basic equations,and the basic formulas of the rod end constraint stiffness in bothdirections are obtained. The elastic support analysis method of structure mechanics isthen formulated. The finite element equations for the elasticsupport analysis method are obtained. With the elastic support method, onestep moment distribution method can be derived, which would improve the separated floor method and the D value method a greatdeal.

     

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