【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。更多还原

【Abstract】 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.更多还原