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本文通过38根钢筋陶粒混凝土梁、柱的试验,探讨了配筋率和轴压比等因素对梁柱截面延性的影响。研究了铜筋陶粒混凝土构件从开裂到破坏各阶段的弯矩—曲率和荷载—位移关系。根据试验结果归纳出钢筋陶粒混凝土构件在弯矩及弯矩和轴力联合作用下位移延性比的经验公式。利用电子计算机对弯矩—曲率曲线全过程作了理论分析,并与试验结果进行了比较,两者比较接近。
In this paper, through 38 tests of reinforced concrete beams and columns, the effects of factors such as reinforcement ratio and axial compression ratio on the ductility of the beam-column section are discussed. The bending moment-curvature and load-displacement relationship of copper-ceramic ceramsite concrete members from cracking to failure are studied. According to the test results, the empirical formula of the displacement ductility ratio of reinforced ceramsite concrete members under combined action of bending moment, bending moment and axial force is concluded. The whole process of bending moment-curvature curve was analyzed theoretically by computer and compared with the experimental results. The two are close.