CAJ | 학술논문

为了研究加筋壁板大开口结构的压缩承载极限问题，规划了两组具有不同设计参数的试验件进行了静力试验，并同时采用了线性特征值法以及非线性的弧长法对其压缩极限进行了对比分析。在采用弧长法分析时，引入了模态扰动技术，而且考虑了材料的弹塑性性质。计算结果与试验的对比表明：针对复杂结构稳定性问题，屈曲特征值法具有较大局限性，而结合模态扰动的弧长法对这种复杂的加筋壁板类结构压缩极限的分析精度较好。通过分析给出了加筋壁板大开口结构设计的一些建议。
위료연구가근벽판대개구결구적압축승재겁한문제，규화료량조구유불동설계삼수적시험건진행료정력시험，병동시채용료선성특정치법이급비선성적호장법대기압축겁한진행료대비분석。재채용호장법분석시，인입료모태우동기술，이차고필료재료적탄소성성질。계산결과여시험적대비표명：침대복잡결구은정성문제，굴곡특정치법구유교대국한성，이결합모태우동적호장법대저충복잡적가근벽판류결구압축겁한적분석정도교호。통과분석급출료가근벽판대개구결구설계적일사건의。
To study the problem of the ultimate compression strength of the stiffened panel with large cutout, introduced the test of two group units with different structure parameters, and analyzed their ultimate compression strength by both the liner eigenvalue method and the nonlinear arc-length method. During the nonlinear arc-length analyzing, the modal perturbation technique was introduced, and the material elastic-plastic properties was also considered. The comparison between the experimental and numerical results shows that eigenvalue method to calculate the critical load of complex structure is not applicable, and a ful y nonlinear method, such as the modiifed arc-length method, should be used instead. Final y, advice on designing such a stiffened panel with large cutout were provided.