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文章通过对一组不同剪跨比、不同混凝土强度等级下的圆形截面钢筋混凝土无腹筋梁 在集中荷载下的抗剪试验研究，分析总结了此类构件斜裂缝及次生裂缝出现和发展的规律和特 征以及斜截面破坏过程、形态的规律和特点。为进一步研究圆形截面构件的抗剪性能提供参考意 见。
In this paper, by a series of shear tests of a group of RC beams with different webs with different shear span ratios and different concrete strength grades under concentrated load, the occurrence and development of oblique cracks and secondary cracks in such members are summarized Laws and characteristics as well as the destruction of oblique cross-section process, morphology and characteristics. For further research on the shear properties of circular cross-section members provide reference.