大型圆弧形拱管稳定和振动分析

Stability and vibration analysis of large arch pipe

圆弧形拱管是常用的跨越构筑物,本文分析了在垂直向下载荷作用下圆弧形拱管的临界载荷计算问题;计算了全跨、半跨载荷作用下的临界载荷;而且计算了侧向临界载荷,并且计算了圆弧形拱管固有频率;为圆弧形拱管的设计和计算提供了依据。

Arc arch pipe is commonly used by span structures. The critical load calculation issues of arc arch pipe under the vertical down load were analyzed. The critical load of entire or half span and the side direction critical load, and the natural frequency of arc arch pipe are calculated, which provides the basis for the design and calculation of arc arch pipe.