- All Journals
- Al-Qadisiyah University
- Basrah University
- Kirkuk University
- Mosul University
- The Iraqi Borad for Medical Specialization
- University of Anbar
- University of Technology
- Al Mustafa University
- Al-Zahraa University for Women
- Alnoor University
- Kunooz University
- Misan University
- Ninevah University
- Tikrit University
- University of Al-Hamdaniya
- University of Kerbala
Experimental Study for Shear Behavior of Hybrid Self-Compacting Concrete Beams | ||
| Journal of Engineering and Sustainable Development | ||
| Article 1, Volume 17, Issue 2, 2013, Pages 97-118 | ||
| Authors | ||
| Ahmed Naji Delef; Husain Khalaf Jarallah; Mohammed Mosleh Salman | ||
| Abstract | ||
| This paper discusses shear behavior of hybrid reinforced concrete beams that consist of two different concrete layers: the tension layer is made of normal strength concrete with compressive strength of 25 MPa and the compression layer is made of self-compacting concrete with two values for compressive strength of 25 and 50 MPa. These hybrid beams have been compared with corresponding homogenous beams made with one type of concrete to assess their structural behavior. Fifteen simply supported beams have been used and distributed into five groups to investigate the effect of some important variables on the shear strength for each group, (the concrete compressive strengths and the tensile steel ratio). The hybrid beams failed in shear in similar linear behavior to the homogenous beams and the results show that, the ultimate average shear strength of the hybrid beams with self compacting concrete having a compressive strength of 50 MPa [ BHY(50)] is higher than the normal beams by 5.2 % and lower than the self compacting concrete beams having a compressive strength of 50 MPa [BSC(50)] by 12 % , while the ultimate average shear strength of the hybrid beams with normal strength self compacting concrete BHY(25) give approximately close shear strength values of normal beams. Also, from the results obtained, the shear strength of the hybrid beams BHY(50) and BHY(25) increase with the increase of the tensile steel ratio from 1.3 % to 1.94 % by 48 % and 53 % respectively compared to 51% for the normal strength beams. Some published shear strength equation where used for normal concrete have been used to predicate the shear strength values for hybrid concrete, finally these shear strength values have been compared with the shear strength results obtained from the experimental work presented in this paper in order to check the adequacy of using these equations in the shear strength calculation for hybrid concrete. | ||
|
Statistics Article View: 151 PDF Download: 76 |
||