Composite concrete beam with multi-web cold-formed steel section
CHALLENGE JOURNAL OF CONCRETE RESEARCH LETTERS • 2019
معلومات البحث
المؤلفون
Ahmed Youssef Kamal, Nader Nabih Khalil
الكلمات المفتاحية
Composite concrete beam; Encased; Multi-web; Cold-formed steel; CFS
المجلة العلمية
CHALLENGE JOURNAL OF CONCRETE RESEARCH LETTERS
الناشر
CHALLENGE JOURNAL
المجلد
10
العدد
2
الصفحات
20-33
publication.type
International
رابط البحث
Open Link
المواد المرفقة
Not Available
الملخص
Lately, structural engineers use cold-formed steel sections (CFS) in buildings due to its light-weight and easy shaping. Encasing the cold-formed steel sections by con-crete avoiding the structure elements some of its disadvantages especially buckling. This paper reports an experimental test program for beams with a multi-web cold-formed steel section encased by reinforced concrete. Eleven (full-scale) specimens have tested under mid-span concentrated load, the experimental test program de-signed to cover many cold-formed steel section variables such as (web number, web height, and the steel section length). Comparison between the experimental results for specimens with encased steel cold-formed section and that for reference beam have presented. The experimental results show that the cold-formed steel webs num-ber has a noticeable influence on the structural behaviour of the beam, such as in-creasing the beam load capacity. The beam load capacity, failure mode and the beam ductility have analysed, and some preparatory criteria for a sufficient outline have presented.
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