CAJ | 학술논문

为了研究钢骨－钢管高强混凝土的抗弯性能，采用截面分层组合法汇编非线性分析程序，分析不同钢管强度、钢骨强度、钢管厚度、钢骨截面惯性矩和混凝土强度等级对组合构件的抗弯力学性能的影响，并对计算结果回归分析，得出实用的抗弯承载力计算公式。研究结果表明：以上因素对其抗弯力学性能有不同程度的影响，但是钢管壁厚的变化对组合构件的抗弯力学性能影响幅度最大；抗弯承载力计算公式与试验结果整体吻合良好。研究结论对合理利用材料来提高组合构件的抗弯承载力，以及对组合构件的抗弯承载力计算是有实际工程意义的。
위료연구강골－강관고강혼응토적항만성능，채용절면분층조합법회편비선성분석정서，분석불동강관강도、강골강도、강관후도、강골절면관성구화혼응토강도등급대조합구건적항만역학성능적영향，병대계산결과회귀분석，득출실용적항만승재력계산공식。연구결과표명：이상인소대기항만역학성능유불동정도적영향，단시강관벽후적변화대조합구건적항만역학성능영향폭도최대；항만승재력계산공식여시험결과정체문합량호。연구결론대합리이용재료래제고조합구건적항만승재력，이급대조합구건적항만승재력계산시유실제공정의의적。
In order to study the bending performance of steel tubular steel-reinforced concrete (STSRHC ) ,nonlinear analy-sis programs were assembled by sectional layered method .And then the impact of different yield stress of steel tube ,dif-ferent inserted steel bar strength ,different thickness of steel tube ,different steel bar moment of inertia and different con-crete strength on the bending behavior of the composite members were analyzed using these programs .Finally a practical formula for calculating flexural bearing capacity was obtained through regression analysis of the results .The results indi-cate that the above mentioned parameters have different influences on the bending mechanical properties ,with the thick-ness of steel tube being the major one .In addition ,the calculated results of the formula agree well with those of the ex-perimental ones .The conclusions of this study have practical engineering significance on improving the bending perfor-mance of the composite members through rational utilization of materials as well as calculating the capacity .