Effect of prestressing strands on the load deflection behavior of steel beams
Other Title(s)
تاثير الحديد المسبق الجهد على تصرف حمل االنحناء للعتبات الفوالذية
Joint Authors
Muhaysin, Sad Khalaf
Mahmud, Kamal Shihadah
Rashid, Muhammad Muhammad
Source
Journal of Engineering and Sustainable Development
Issue
Vol. 23, Issue 6 (30 Nov. 2019), pp.147-166, 20 p.
Publisher
al-Mustansyriah University College of Engineering
Publication Date
2019-11-30
Country of Publication
Iraq
No. of Pages
20
Main Subjects
Social Sciences (Multidisciplinary)
Abstract EN
Seven simply supported steel beams were tested to explain the effect of strengthening by external prestressing strands.
All of these beams have the same steel section, clear span length and the strengthening samples implemented by two external prestressing strands.
The tested beams are divided into two categories according to existing of external prestressing strands, the first category consists of one steel beam as a reference, while, the second group deals with steel beams strengthening by external prestressing strands and consists of six steel beams divided according to the eccentricity location of prestressing strand with jacking stress (814.589 MPa).
During the teste, it was found that the load deflection curves for tested beams strengthening with external prestressing strand are stiffer as compare with the reference beams and the percentage of stiffening increase with increasing the eccentricity locations, while, the maximum load deflection increase to 0.173% , 26.086% , 33.043% , 48.521% , 13.739 % and 69.565 % with increasing the eccentricity location from (0 to 165) mm respectively as compare with the reference beam, on the other hand the increasing percentage in deflection at mid span decrease to -29.094% , -7.753% , -19.764% , 11.976% , -8.965% and -23.779% with increasing the eccentricity location from (0 to 165) mm respectively as compare with the reference beam and the quarter span deflection to mid span deflection ratio (δ quarter / δ mid) is bout (0.497) Seven simply supported steel beams were tested to explain the effect of strengthening by external prestressing strands.
All of these beams have the same steel section, clear span length and the strengthening samples implemented by two external prestressing strands.
The tested beams are divided into two categories according to existing of external prestressing strands, the first category consists of one steel beam as a reference, while, the second group deals with steel beams strengthening by external prestressing strands and consists of six steel beams divided according to the eccentricity location of prestressing strand with jacking stress (814.589 MPa).
During the teste, it was found that the load deflection curves for tested beams strengthening with external prestressing strand are stiffer as compare with the reference beams and the percentage of stiffening increase with increasing the eccentricity locations, while, the maximum load deflection increase to 0.173% , 26.086% , 33.043% , 48.521% , 13.739 % and 69.565 % with increasing the eccentricity location from (0 to 165) mm respectively as compare with the reference beam, on the other hand the increasing percentage in deflection at mid span decrease to -29.094% , -7.753% , -19.764% , 11.976% , -8.965% and -23.779% with increasing the eccentricity location from (0 to 165) mm respectively as compare with the reference beam and the quarter span deflection to mid span deflection ratio (δ quarter / δ mid) is bout (0.497).
American Psychological Association (APA)
Mahmud, Kamal Shihadah& Rashid, Muhammad Muhammad& Muhaysin, Sad Khalaf. 2019. Effect of prestressing strands on the load deflection behavior of steel beams. Journal of Engineering and Sustainable Development،Vol. 23, no. 6, pp.147-166.
https://search.emarefa.net/detail/BIM-1114113
Modern Language Association (MLA)
Mahmud, Kamal Shihadah…[et al.]. Effect of prestressing strands on the load deflection behavior of steel beams. Journal of Engineering and Sustainable Development Vol. 23, no. 6 (Nov. 2019), pp.147-166.
https://search.emarefa.net/detail/BIM-1114113
American Medical Association (AMA)
Mahmud, Kamal Shihadah& Rashid, Muhammad Muhammad& Muhaysin, Sad Khalaf. Effect of prestressing strands on the load deflection behavior of steel beams. Journal of Engineering and Sustainable Development. 2019. Vol. 23, no. 6, pp.147-166.
https://search.emarefa.net/detail/BIM-1114113
Data Type
Journal Articles
Language
English
Notes
-
Record ID
BIM-1114113