【摘要】 将超高层建筑巨型框架中的二级框架柱的轴向变形沿巨型框架梁单元作连续化处理,作为巨型框架梁单元的弹性地基,并在此基础上考虑二级框架梁柱弯曲变形产生的剪切刚度,沿巨型框架柱单元连续化处理后作为其剪切型地基,推导了单元刚度矩阵和等效结点荷载.计算了算例,并与不同计算方法的结果以及精确计算结果进行了比较.计算结果表明与精确解相比计算精度相当高,说明此方法抓住了问题的本质,与精确解相比具有同样的精确度.更多还原

【Abstract】 The columns’ axis distortion of second frame, which are composite of a super high-rise building, are dealt with continuously along the beam elements. This is treated as the elastic ground for the beam elements. Based on these, the shear stiffness, which come from the columns’ bend distortion, are dealt with in the same way of the columns’ axis distortion, this is treated as the shear ground. The element stiffness matrix and equivalent node force are concluded. An example is done, and the result is compared with it from the different methods and from the precision. This indicates that the result from the method of this article is quite accurate comparing to the precision solution, and the method gets the essence, the result has the same accuracy of precision solution.更多还原