SHEAR RESPONSE OF LARGE R. C. BEAMS PROVIDED WITH SIDE BARS UNDER REPEATED LOADING | ||
| JES. Journal of Engineering Sciences | ||
| Article 5, Volume 34, No 4, July and August 2006, Pages 1113-1131 PDF (654.32 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.21608/jesaun.2006.110770 | ||
| Author | ||
| Yehia. A. Hassanean* | ||
| Civil Department, Faculty of Engineering, Assiut University, Egypt. | ||
| Abstract | ||
| Cracks of reinforced concrete beams may be expected under a certain service load because of low tensile strength of concrete. In other hand, cracking of reinforced concrete structures is considered undesirable, not only aesthetic reasons, but also because it adversely affects durability and leads to corrosion of embedded reinforcement. So distribution of longitudinal reinforcement is required along the side faces of large concrete beams to control cracking. Most of national codes recommended provision of large beams with side bars added at both sides of the beam cross-sections. Some of these bars may lie at compression or tension zones according to their arrangement. These bars contribute to the overall shear strength and useful in the design of the reinforced concrete cross-sections. The aim of this work is to study the response of short beams as affected by side bars location, amount of area and arrangement along the side face of the beams and subjected to repeated loading. For this purpose an experimental program was set up and tests on ten large reinforced concrete short beams were carried out under transverse service repeated loading followed by static loading up to failure. The patterns of cracks were traced, the modes of failure were observed, the crack widths were measured, and the deformations were recorded as well as both cracking and ultimate loads were also measured. The results show that providing side bars to short beams have a significant and considerable effect on shear response of such beams and hence it should be recommended to be taken into account in designing of such beams. | ||
| Keywords | ||
| Side face reinforcement; repeated loading; Shear span to depth ratio; Deformation | ||
|
Statistics Article View: 102 PDF Download: 428 |
||
