我在本刊今年第6期读者信箱栏内“不同级别钢筋在梁同一截面内能不能混用”一文发表后,陆续收到一些读者来信,对文中一些观点和提法提出了不同看法。我个人认为对有些技术问题有不同看法和争论是正常的,有益的,有利于互相提高。现就有关问题答复如下。1.原文关于“不同级别钢筋在梁内同一截面不能混用”的观点,与 In the sixth column of the reader’s mailbox this year, I have received a number of letters from readers after the article “Can Different Grades of Reinforced Bars Be Used in the Same Section of Beams” was published, and expressed different views on some of the viewpoints and references in the article. I personally think that there are different views and arguments on some technical issues that are normal, beneficial, and beneficial to each other. The reply to the relevant question is as follows. 1. The original view of “different levels of steel in the same section of the beam can not be mixed ”, and