CAJ | 학술논문

通过试验研究了腹部分别开设较小单孔以及双孔的钢筋混凝土梁的破坏特点、钢筋的应变特点、挠度、裂缝宽度及承载力等力学特性.结果表明，孔洞尺寸对开孔梁的力学性能影响明显，腹部开设双孔(孔间净距大于孔径)时，对梁的力学性能无明显影响.所得结果为工程实践提供了依据.
통과시험연구료복부분별개설교소단공이급쌍공적강근혼응토량적파배특점、강근적응변특점、뇨도、렬봉관도급승재력등역학특성.결과표명，공동척촌대개공량적역학성능영향명현，복부개설쌍공(공간정거대우공경)시，대량적역학성능무명현영향.소득결과위공정실천제공료의거.
This paper, based on the experiment, investigates the mechanicalbehavior of the reinforced concrete beams with the smaller sizes of circular opening and double circular openings. The experimental results are discussed in terms of the crack propagation and failure process, the strains of the reinforcements, the deflection, and the characteristics capacity-bearing shear. The results show that the behavior of the beams is also affected by the size of the opening and yet it is not markedly affected by the double circular openings, which have a distance of more than 1 time of the diameter of opening from its side to the side of the circular openings. The paper provides some references for engineering practice.