一、前言水泥厂的厂房柱,大多数都是双向偏心受压的。正确的计算,应该是按照框架的实际情况进行空间受力分析,按双向偏心受压计算柱的强度。但是由于种种原因,目前进行空间受力分析尚有困难,验算双向偏心受压强度的公式计算比较麻烦,故一般都将空间框架按两个互相垂直的平面框架进行计算,然后把两个方向单向偏心受压算得的柱的钢筋,直接配到柱的相应边上。这样作,就意味着只要单向偏心受压强度够了,双向偏心受压也就没有问题。但是事实并非如此。从本文可以看出,上述作法仅在少数情况下才没有问题。在多数情况下, I. INTRODUCTION Most of the pillars in the cement plant are bi-directionally eccentrically compressed. The correct calculation should be based on the actual situation of the framework of the space force analysis, according to the biaxial eccentric pressure calculated column strength. However, due to various reasons, it is still difficult to perform space force analysis at present. It is cumbersome to check the calculation formula of the bi-directional eccentric compressive strength. Therefore, the space frame is generally calculated according to two mutually perpendicular plane frames, and then the two directions are singled. The bars of the column calculated from eccentric pressure are directly attached to the corresponding sides of the column. In doing so, it means that as long as one-way eccentric compression strength is sufficient, there is no problem in the bi-directional eccentric compression. But that is not the case. It can be seen from this paper that the above-mentioned practice has no problem only in a few cases. In most circumstances,