TY  - JOUR
T1  - Investigating the Effect of the Ribs Spacing on the One
Way Reinforced Concrete Ribbed Slab Strength
AU - Al-Nasra, M. AU - Abdulraziq, R. AU - Abouelnaga, Y. AU - AlMofleh, A. AU - Ayub, O. AU - Abdelsadig, M. AU - Mohammed, O. 
JO  - Journal of Engineering and Applied Sciences
VL  - 14
IS  - 15
SP  - 5138
EP  - 5142
PY  - 2019
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2019.5138.5142
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2019.5138.5142
KW  - Ribbed slab
KW  -ribs spacing
KW  -fiber concrete
KW  -flexural strength
KW  -lightweight materials
KW  -reinforcement
AB  - The one way ribbed slab is very common reinforced concrete slab. It considered one of the main
structural element in reinforced concrete structures. The main function of these slabs is to carry surface loads
efficiently and in many cases to provide higher insulation value. It is common practice to fill the spacing
between the ribs with different lightweight materials including cavity concrete blocks and polystyrene foam.
This study focused on the spacing between the ribs. The main objective is to study the effect of the ribs
spacing on the performance of the one way reinforced concrete ribbed slabs. The other parameters are kept the
same for all of the tested samples including the overall thickness, the concrete mix design and the embedded
steel reinforcement. Five slabs were prepared and tested by one way flexural bending stress. Polystyrene foam
blocks of variable width is used to fill the space between the ribs. The height of the polystyrene foam blocks
is kept constant. Special fiber is added to the concrete mix design to improve the performance of the concrete.
Parametric study is conducted relating the slab strength with many factors including the material cost and the
overall slab weight.
ER  -