In this paper, a static failure test was carried out on a confined concrete beam and a normal reinforced concrete beam. The theoretical and experimental bearing capacity of ordinary reinforced concrete beams and regional confined concrete beams are analyzed. The experimental and theoretical calculation results show that the regional confined concrete beam can effectively increase the bearing capacity of the beam without changing the section size. Since ordinary reinforced concrete participates in the compression zone in order to consider the compression zone, the calculation formula for regional confined concrete beams given in the code is conservative.

中文翻译：

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区域约束混凝土受弯构件法向截面承载力分析

本文对约束混凝土梁和普通钢筋混凝土梁进行了静力破坏试验。分析了普通钢筋混凝土梁和区域约束混凝土梁的理论承载力和试验承载力。实验和理论计算结果表明，区域约束混凝土梁可以在不改变截面尺寸的情况下有效提高梁的承载力。由于普通钢筋混凝土参与受压区是为了考虑受压区，规范中给出的区域约束混凝土梁计算公式较为保守。