Buckling Characteristics of High Manganese Non-magnetic Steel and Carbon Steel Hybrid Cruciform Columns† - Investigation for Applying Dissimilar Materials to Steel Structures (Report III) -
Buckling Characteristics of High Manganese Non-magnetic Steel and Carbon Steel Hybrid Cruciform Columns† - Investigation for Applying Dissimilar Materials to Steel Structures (Report III) -
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高锰非磁钢与碳钢混合十字柱的屈曲特性† - 异种材料在钢结构中的应用研究（报告三） -
DOI：
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
K. Horikawa
中科院分区：
文献类型：
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作者：
You Chul Kim;H. Tahara;E. Nakaji;K. Horikawa
通过对比中心轴压缩试验得到的荷载-位移曲线，验证了弹塑性大变形分析结果的有效性。为了阐明异种材料混杂柱的屈曲特性，进行了一系列分析。异种材料混杂柱(DMHC柱)的局部屈曲模式与同类材料柱(SMC柱)相同，但整体屈曲模式与SMC柱不同。在弹性范围内，无论宽厚比如何，DMHC柱的竖向位移-荷载历程都遵循由各种材料组装的SMC柱之间的历程，但在屈服点以外表现出一种特殊的行为。在达到最大荷载后，它再次遵循SMC柱之间的历史。注意板材，虽然在弹性范围内，DMHC柱的板材表现出与SMC柱板材相同的行为，但屈服后，DMHC柱的板材表现出不同的塑性发展。发现DMHC柱的最大负荷可能比由材料组装而成的SMC柱的最大负荷更小，并对其条件进行了说明。
The validity of the results obtained by elastic-plastic large deformation analysis is confirmed by comparing load-displacement curves obtained in experiments using the central axis compression test. A series of analyses were performed in order to elucidate the buckling characteristics of dissimilar materials hybrid columns. The local buckling mode of dissimilar materials hybrid columns (DMHC columns) is same as that of similar materials columns (SMC columns), but the overall buckling mode is different from that of SMC columns. The vertical displacement-load history of DMHC columns follows a history between those of SMC columns assembled from each material regardless of width-thickness ratio in the elastic range, but shows a peculiar behavior beyond the yield point. After reaching the maximum load, it follows a history between those of SMC columns again. Paying attention to the panels, although each panel of the DMHC column shows the same behavior as that of a panel of an SMC column in the elastic range, after yielding, each panel of the DMHC column shows a different progress of plasticity. It is found that the maximum load of a DMHC column might become smaller than that of an SMC column assembled from material in which the maximum load was smaller and its conditions are elucidated.