Comparison between ASD & LRFD Egyptian steel codes for beam-columns under different live to dead load ratios /
Abdelrhman Mostafa Awd
Comparison between ASD & LRFD Egyptian steel codes for beam-columns under different live to dead load ratios / تحت تأثير تغيير نسبة الأحمال الحية إلى الأحمال الميتة Beam-columnsلقطاع LRFD , ASD مقارنة بين طريقة تصميم المنشآت المعدنية باستخدام المواصفات المصرية Abdelrhman Mostafa Awd ; Supervised Fouad Fayez Aly - Cairo : Abdelrhman Mostafa Awd , 2015 - 172 P. : charts ; 30cm
Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Civil Engineering
This Thesis presents a study of the structural design of beam-columns in accordance with the latest Egyptian steel codes (ASD & LRFD) under the effect of different live to dead load ratios. Extracted design charts are produced to determine the relation between different Live to dead load ratios versus different unsupported member lengths. While focusing on regions where either LRFD or ASD shall give an optimum designed section based on the different design parameters. Different cross sections, member spans, steel grade and buckling lengths are introduced. It is shown clearly the significant effect of different sharing of axial compression force to the applied moment for the output results. Great influence is also observed for the unsupported length 2Lu3 and of course the live to dead load ratio. Generally it is concluded that, ASD" method is more reliable than "LRFD" method for beam-column section with bigger unbraced length "Lu2, and for higher N ratios, while LRFD method is much optimum for smaller Lu values, smaller N ratios, smaller cross sections and smaller L/D ratios
ASD ECP CODE LRFD
Comparison between ASD & LRFD Egyptian steel codes for beam-columns under different live to dead load ratios / تحت تأثير تغيير نسبة الأحمال الحية إلى الأحمال الميتة Beam-columnsلقطاع LRFD , ASD مقارنة بين طريقة تصميم المنشآت المعدنية باستخدام المواصفات المصرية Abdelrhman Mostafa Awd ; Supervised Fouad Fayez Aly - Cairo : Abdelrhman Mostafa Awd , 2015 - 172 P. : charts ; 30cm
Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Civil Engineering
This Thesis presents a study of the structural design of beam-columns in accordance with the latest Egyptian steel codes (ASD & LRFD) under the effect of different live to dead load ratios. Extracted design charts are produced to determine the relation between different Live to dead load ratios versus different unsupported member lengths. While focusing on regions where either LRFD or ASD shall give an optimum designed section based on the different design parameters. Different cross sections, member spans, steel grade and buckling lengths are introduced. It is shown clearly the significant effect of different sharing of axial compression force to the applied moment for the output results. Great influence is also observed for the unsupported length 2Lu3 and of course the live to dead load ratio. Generally it is concluded that, ASD" method is more reliable than "LRFD" method for beam-column section with bigger unbraced length "Lu2, and for higher N ratios, while LRFD method is much optimum for smaller Lu values, smaller N ratios, smaller cross sections and smaller L/D ratios
ASD ECP CODE LRFD