Strengthening of R.C. Beams Using Different Techniques
Journal Title: IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) - Year 2019, Vol 16, Issue 1
Abstract
Experimental program consisting of five reinforced concrete beams with dimensions 2200 mm length, 150 mm width, 200 mm depth and reinforced by 2 16 bottom RFT, 212 upper RFT and 58/m stirrups, were carried out to investigate the flexure behavior of strengthened R.C. beams using four different techniques. A four strengthening techniques were proposed, the first technique is using 5 cm Ferrocement U-Wrapped from three sides, the second technique using 5cm polypropylene fibers U-Wrapped from three sides, the third technique using one layer U-Wrapped of glass fiber reinforced polymers fixed with bolts, while fourth technique using four layer U-Wrapped of glass fiber reinforced polymers fixed with bolts. Experimental results used to compare between the different strengthening techniques in terms of enhancement of load capacity, first crack load, maximum deflection, Gain in Ductility, Energy Absorption and cost per 1% increase in load capacity. The results indicate that the strengthening of R.C. beam using four layers of glass fiber reinforced polymers fixed with bolts is the best technique to enhancement the flexure behavior with lowest cost, the strengthening of R.C. beam using 5 cm Ferrocement and using polypropylene fibers gives good behavior against flexure with medium cost and the strengthening of R.C. beam using one layers of glass fiber reinforced polymers fixed with bolts the worst technique of strengthening R.C. beams as there is no improvement in the beam behavior.
Authors and Affiliations
Nasr E. Nasr
Keywords
Related Articles
- EP ID EP443107
- DOI 10.9790/1684-1601027282.
- Views 88
- Downloads 0
Determination of Drag Coefficient for Hyundai Model Using the Strain Gauge Method
The flow field around an automobile is very complex, characterized by a high degree of Three dimensionality, flow separation, reattachment and vortex formation. Flow visualization as well as flow simulation are helpful t...
New Airbag Protection Cover Development of Cell Phone Against Free Fall Using Advanced Finite Element Analysis Approach
Researchers widely used physical testing method toinvestigate the damage of cellular phone during free fall. It is always very costly, time consuming and complex. Finite element analysis is an advanced simulation tools w...
Submerged Floating Tunnel
Submerged Floating Tunnel is a new concept, It is a new type of transport structure. It is very different from other structures like bridges and tunnels, It is the new invention in which the conventional structure in cro...
Characterication Of Modified Asphalt Mixtures With Asphalt Cement With Road Bond En-1
The objective of this study is to evaluate the effect of adding Road bond EN-1 to the asphalt cement and their asphalt mixtures properties, and the long term performance. The variables considered are the effect of adding...
Structural Performance of A 3D Reinforced Concrete Building Obtained By both Nonlinear Static and Dynamic Analysis
The paper presents thoroughly the process for the analytical estimation of reinforced concrete structures structural vulnerability. In order to achieve this purpose, both nonlinear static and dynamic analysis have been i...