叠合梁最大配筋率的研究

Research on Maximum Steel Ratio of Composite Beams

叠合梁的最大配筋率是叠合结构中的一个疑难问题，本文对叠合梁的最大配筋率问题进行了讨论，提出了按平截面假定解决问题的思路及和现行规范ＧＢＪ１０－８９相互衔接配套的公式，并将计算结果与试验结果，计算机分析结果进行了比较。

How to determine the maximum steel ratio in composite beams is an outstanding problem. The problem is discussed and solved based on the plane hypothesis in this paper.The formulae derived for the maximum steel ratio of composite beams can link up with the Chinese code GBJ10-89,The results obtained are in agreement with the existing test data and those calculated by computer.