规则框架结构屈服段的一种简化算法
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摘要
通过引入外荷载弯矩与截面屈服弯矩比值的概念,将结构屈服段分为初始屈服点和最终屈服点;用结构力学方法,分析了初始屈服点A对应的水平力和位移的计算方法;根据虚功原理,推导了最终屈服点B对应的力和位移计算公式,其中位移计算考虑了边柱最后屈服和中柱最后屈服两种情况。
The yield stage of a frame is determinated by two points,the first yield point and the last yield point,with introducing the ratio of the load moment to the yield moment of sections.The calculating method for the horizontal force and the displacement of the first yield point are analysised by using structural mechanics method.The calculating formulas are deduced for the horizontal force and the displacement of the last yield point by using principle of virture work,in which two cases,one for the side column yielding lastly and the other for the medium column yielding lastly,are taken into account in the displacement calculation.
引文
[1]孟少平,等.多层多跨部分预应力混凝土框架结构抗震延性设计方法的探讨[J].地震工程与工程振动,1999(3).
    [2]孙克俭.钢筋混凝土典则框架结构的位移延性与延性分析[J].建筑结构,1993(8):31-38.
    [3]Park R,Paulay T.钢筋混凝土结构[M].秦文钺,译.重庆:重庆大学出版社,1985.
    [4]龙驭球,包世华.结构力学教程[M].北京:高等教育出版社,1990.

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