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simplified algorithm for Out-of-Plane Critical Loads of CFST Solid-Rib Arch

Journal of Donghua University(English Edition) 2015年第5期32卷 782-786,806页

作者：陈昀明韦建刚黄蕾李晓辉陈宝春 College of Civil Engineering Fuzhou University Plant Layout and Transportation Devision Capital Engineering & Research Incorporation Limited

The simplified algorithm for out-of-plane ultimate loadcarrying capacity of concrete-filled steel tubular( CFST) solid-rib arches under uniform vertical load was studied. The experimentally validated finite element model was developed. The out-of-plane equivalent length coefficients of solid-rib arches were obtained using out-of-plane elastic eigenvalue buckling analysis. Then the out-ofplane elastic stability coefficient was plotted against the normalized slenderness ratio,and the out-of-plane eigenvalue buckling load or elastic buckling capability of arches was calculated. Lastly effects of different parameters on the out-of-plane ultimate load-carrying capacity of CFST solid-rib arches were determined using geometric and material nonlinear finite element analysis, and a simplified algorithm was established by fitting the out-of-plane elastic-plastic stability coefficient and normalized slenderness ratio using PerryRobertson formula. Ratio of the elastic stability coefficient to the elastic-plastic counterpart was plotted against the out-of-plane normalized slenderness ratio,from which the out-of-plane elasticplastic ultimate load-carrying capacity was determined according to the corresponding elastic buckling load. Results show that the proposed simplified algorithm can accurately predict the out-of-plane eigenvalue buckling load and the elastic-plastic ultimate loadcarrying capacity of the CFST solid-rib arches.

关键词： concrete-filled steel tubular(CFST) solid-rib arch out-of-plant buckling ultimate load-carrying capacity simplified algorithm

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A simplified algorithm of PLS Regression

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Systems Science and Systems Engineering 2000年第4期10卷 414-419页

作者： ZHU Yun\|hua,\ WANG Hui\|wen,\ YANG Xiang\|long School of Management, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

This paper describes a simplified algorithm of PLS regression, which can obviously reduce the computation of some parameters and simplify the computing procedure. Moreover, the new optimistic rule of this method provi... 详细信息

关键词： PLS regression simplified algorithm

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