CAJ | 학술논문

依托于在武汉大学进行的大规格高强度角钢承载力试验，分析了长细比为35、40、45、50、55这5种大规格高强度角钢构件的稳定系数。对比了试验测得的大角钢承载力与通过各国规范计算出的承载力，并将试验得到的柱子曲线与有限元模拟和不同规范中柱子曲线进行对比分析；采用数值回归方法，利用试验数据计算得到大角钢稳定系数推荐的计算方法，并评价了该方法的可靠性。结果表明，对大角钢承载力进行“无量纲化”处理后，大角钢仍表现出良好的“超强性能”；同时认为中国现行标准规范中的 b 类柱子曲线用于大角钢构件的稳定承载力计算偏于保守。
의탁우재무한대학진행적대규격고강도각강승재력시험，분석료장세비위35、40、45、50、55저5충대규격고강도각강구건적은정계수。대비료시험측득적대각강승재력여통과각국규범계산출적승재력，병장시험득도적주자곡선여유한원모의화불동규범중주자곡선진행대비분석；채용수치회귀방법，이용시험수거계산득도대각강은정계수추천적계산방법，병평개료해방법적가고성。결과표명，대대각강승재력진행“무량강화”처리후，대각강잉표현출량호적“초강성능”；동시인위중국현행표준규범중적 b 류주자곡선용우대각강구건적은정승재력계산편우보수。
Based on experiment on bearing capacity of large size and high strength angle steel conducted by Wuhan university, stability coefficients of constructional elements of five kinds large size and high strength angle steels with respective slender ratio of 35,40,45,50 and 55 were analyzed.Bearing capacity measured by the experiment and that worked out according to standards of various countries was compared,column curve from the experiment and that from finite element simulation and different standards was compared and analyzed as well.Calculation method for stability coefficient of large size angle steel was worked out by means of experimental data and using numerical regression method of which reliability was evalua-ted.Results indicate that after nondimensionalization treatment was processed for bearing capacity of large size angle steel, the large size angle steel still had super performance.Meanwhile,it was considered to be conservative to use b typed column curve in Chinese existing standards for calculating stability bearing capacity of constructional element of the large size angle steel.