一、前言钢筋混凝土梁配置斜弯钢筋时,要遇到一个几何作图问题,这就是按弯起斜筋的面积等分主拉应力图的面积。这是大家所熟习的,这里不再赘述。以往所用的方法即等分主拉应力图面积的方法,只适用于弯起斜筋的直径相同或成倍数的情况。殊不知只要对作图过程中的某一步骤稍作变动,就可推广应用到弯起斜筋的直径是任意不同的情况。而且这种变动比目前一些书籍中所介绍的累积曲线法要方便得多。对于主拉应力图图形比较复杂,例如 I. INTRODUCTION Reinforced concrete beam configuration skew bent bars, to encounter a geometric mapping problem, which is the area of ​​the oblique bend according to the main tensile stress plot area. This is familiar to everyone, will not repeat them here. The method used in the past, that is, the method of equally dividing the principal tensile stress area, is only applicable to the case where the diameter of the bent slant bar is the same or multiple. As everyone knows as long as a certain step in the mapping process a little change, you can promote the application to the bend Diagonal diameter is any different situation. And this change is much more convenient than the cumulative curve method described in some books at the moment. For the main tensile stress graph more complex, for example