CAJ | 학술논문

为研究浇筑自密实混凝土的圆中空夹层钢管混凝土试件的抗弯承载力及其影响因素，进行了9个圆中空夹层钢管自密实混凝土试件、1个实心钢管混凝土试件和1个空心钢管试件的试验，并进行了数值模拟分析。首先，通过对比不同空心率试件的试验与理论计算结果，指出了空心率对承载力的影响规律。然后，进行数值模拟，并与试验结果进行了对比，分析了两者之间的差异性。最后，根据对比结果，针对文献中提出的抗弯承载力系数进行了修正，并进行了验证分析。结果表明，提出的抗弯承载力修正系数公式是可行的。
위연구요축자밀실혼응토적원중공협층강관혼응토시건적항만승재력급기영향인소，진행료9개원중공협층강관자밀실혼응토시건、1개실심강관혼응토시건화1개공심강관시건적시험，병진행료수치모의분석。수선，통과대비불동공심솔시건적시험여이론계산결과，지출료공심솔대승재력적영향규률。연후，진행수치모의，병여시험결과진행료대비，분석료량자지간적차이성。최후，근거대비결과，침대문헌중제출적항만승재력계수진행료수정，병진행료험증분석。결과표명，제출적항만승재력수정계수공식시가행적。
In order to reveal the bending capacity and the influence of self-compacting concrete-filled double skin steel tube, the nine specimens for self-compacting concrete-filled double skin steel tube, one specimen for full-filed and one for hollow tube were tested and simulated numerically. Firstly, the compared results of different hollow ratio test specimens showed the effects of hollow ratio to the bending capacity of self-compacting concrete-filled double skin steel tube. Secondly, the difference of the results from the tests and numerical simulation were discussed. Finally, the proposed formulas of correction coefficient were verified by the comparison of the tests and the finite element simulation. The results show that the proposed formulas are workable.