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为改善普通钢筋混凝土梁的抗震性能,提出一种由超韧性混凝土和不同屈服点金属构成的不同屈服点钢筋混凝土梁。基于对不同屈服点钢筋混凝土梁和普通钢筋混凝土梁的低周反复荷载对比试验,对其裂缝发展、破坏形态、滞回曲线、骨架曲线、耗能能力、延性等抗震性能进行系统研究。研究表明,不同屈服点钢筋混凝土梁具有较好的抗震性能。
In order to improve the seismic performance of ordinary reinforced concrete beams, a new yielding point reinforced concrete beam with super tough concrete and different yield point metals is proposed. Based on the comparative tests of low cycle repeated loadings of different yield point reinforced concrete beams and common reinforced concrete beams, the seismic development of fractures, failure modes, hysteresis curves, skeleton curves, energy dissipation capacity and ductility were studied systematically. Research shows that different yield point reinforced concrete beams have better seismic performance.