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本文以上海国际航运大厦为例，针对超高层钢结构，在竖向刚度变化较大的情况下，灵活运用ETABS计算程序，分别对整体、伸臂桥架进行了设计计算；并有效地借助于计算机辅助手段进行前后处理和细部结构分析计算，给高效率地完成一项较大的工程提供了一个可以借鉴的方法。
In this paper, taking Shanghai International Shipping Building as an example, aiming at super high-rise steel structures, under the condition that the vertical stiffness changes greatly, the ETABS calculation program is used flexibly to design and calculate the overall and the extension arm bridge respectively; The auxiliary means performs pre- and post-processing and detailed structural analysis calculations, providing a method that can be used for reference to efficiently complete a larger project.