- 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
STRUCTURAL BEHAVIOR OF EMBEDDED SHEAR HEAD IN MODIFIED REACTIVE POWDER FLAT PLATE CONCRETE WITH OPENING | ||
| Journal of Engineering and Sustainable Development | ||
| Article 1, Volume 21, Issue 3, 2017, Pages 102-118 | ||
| Author | ||
| Abeer Hassan Wenas | ||
| Abstract | ||
| This study presents an experimental investigation on one type of embedded shearhead called ( collar head reinforcement) as shear reinforcement for tow type of reinforced concrete flat plate with presence of opening on punching shear strength. This type of shearhead is one of the structural solution that are used to increase the shear strength of flat slab . In the present research , ten specimens are tested with dimensions (1000x1000x75 mm) which are divided into two groups; the first group is a normal strength concrete with a compressive strength 30MPa; the second group is modified reactive powder concrete with a compressive strength 90MPa. Each group consists of five slabs. By using collar shearhead around the column sides and extended to the opening NSC4, the cracking load can be increased to 100% solid flat slab without collar head. For serviceability of flat plate with opening, the deflection and crack width can be reduced by using collar head around the column sides extended to the opening. The reduction can be continued by increasing the compressive strength of the concrete. The losses in the critical section property in the present work do not exceed 7% in the case of specimen with opening with dimension equal to the supporting column dimensions. By concentrating on the slabs which had openings adjacent to the column but strengthened with collar head in different configurations, the percentage of the critical section perimeter was between (103.2– 119.3) % that was reflected to the capability of this type of shear reinforcement (collar shear head) in making up the shortfall in the critical section due to the presence of openings. | ||
| Keywords | ||
| flat plate; Punching shear; Modified Reactive Powder | ||
|
Statistics Article View: 64 PDF Download: 14 |
||