再生混凝土U型叠合梁抗剪性能

摘要

The shear behavior of three recycled concrete U-shaped composite beams and one whole cast recycled concrete beam were tested and compared. Researches on the developments of cracks, failure modes and shear capacities of the U-shaped composited beams and whole cast beam were developed. The test results show that shear failure modes and mechanisms of recycled concrete U-shaped composite beams are similar to those of whole cast ordinary concrete beams. The calculation method of shear capacity of recycled concrete U-shaped composite beams can be referred to that of whole cast beams.%通过3根再生混凝土U型叠合梁和1根再生混凝土整浇梁的抗剪性能对比试验,研究了U型叠合梁和整浇梁的裂缝发展、破坏形式和抗剪承载力.试验结果表明:再生混凝土U型叠合梁的抗剪破坏形式和受力机理与整浇混凝土梁类似,再生混凝土U型叠合梁的抗剪承载力计算可参照整浇梁的抗剪承载力计算方法.