力法分析筒中筒结构的修正

A Modification to the Force Method on the Analysis of Tube-in-Tube Structure

本文给出了用力法分析筒中筒结构的合理模型。指出这种分析应以楼板水平的集中力而不应以所谓的“典型荷载”作为基本的荷载形式。这一修正不仅避免了荷载近似处理带来的额外误差,而且使整个计算过程大为简化。此外,本文还讨论了内筒计算和“典型荷载”的适用性等问题。

In this paper, the simplified methods to the analysis of tube-in-tube structure are modified. It is pointed out that the basic form of loads should not be the so called 'typical loads', instead of the point loads located in the floor plane. By this revision, not only the errors which are made by the approximation of loads can be avoided, but also greatly simplifies the procedure of analysis.