Effect of geometric imperfections on the ultimate moment capacity of cold-formed sigma-shape sections
المؤلفون المشاركون
المصدر
Housing and Building National Research Center Journal
العدد
المجلد 13، العدد 2 (31 أغسطس/آب 2017)، ص ص. 163-170، 8ص.
الناشر
المركز القومي لبحوث الإسكان و البناء
تاريخ النشر
2017-08-31
دولة النشر
مصر
عدد الصفحات
8
التخصصات الرئيسية
الملخص EN
In recent years, cold formed steel sections are used more and more as primary framing components and as a secondary structural system.
They are used as purlins and side rails or floor joist, and after that in the building envelops.
Beams are not perfectly straight and are usually associated with geometric imperfections.
Initial geometric imperfections can significantly influence the stability response of cold-formed steel members.
This paper reports a numerical investigation concerning the effect of these imperfections on the behavior of the simply supported beams subjected to a uniform bending moment.
The beam profile is cold formed sigma sections.
Group of beams with different overall member slenderness ratios were studied.
Several approaches have been utilized to model the geometric imperfections.
First, the elastic buckling modes were considered as the imperfect beam shape.
In this approach, the elastic buckling analysis was done first to get the elastic buckling modes.
In the second approach, the imperfections were considered by assuming the beam bent in a half sine wave along its length.
Finally, combination of these two approaches was considered.
Results reveal that, the ultimate bending moments of beams with short and intermediate overall slenderness ratios are sensitive to the imperfect shape that comprise compression flange local buckling.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Junaydi, Basim L.& Hanna, M. T.. 2017. Effect of geometric imperfections on the ultimate moment capacity of cold-formed sigma-shape sections. Housing and Building National Research Center Journal،Vol. 13, no. 2, pp.163-170.
https://search.emarefa.net/detail/BIM-777463
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Junaydi, Basim L.& Hanna, M. T.. Effect of geometric imperfections on the ultimate moment capacity of cold-formed sigma-shape sections. Housing and Building National Research Center Journal Vol. 13, no. 2 (Aug. 2017), pp.163-170.
https://search.emarefa.net/detail/BIM-777463
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Junaydi, Basim L.& Hanna, M. T.. Effect of geometric imperfections on the ultimate moment capacity of cold-formed sigma-shape sections. Housing and Building National Research Center Journal. 2017. Vol. 13, no. 2, pp.163-170.
https://search.emarefa.net/detail/BIM-777463
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references : p. 170
رقم السجل
BIM-777463
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر