Deflection Control in RCC Beams by Using Mild Steel Strips (An Experimental Investigation)

Abstract

It is well recognized that in modern practice, structural failures are all too common in terms Serviceability and are relatively rare in terms of Safety. Adoption of limit state of design and higher grades of concrete and steel in modern RCC structures has led to overall thinner member sections and high stress levels at service loads. These in turn have resulted in larger deflections, crack- widths, vibrations etc. In particular, it is the Serviceability Limit state of ‘Durability’ that calls for particular attention, because ‘Deflection’ is a very important criteria need to be taken into account. Due to architectural constrain generally depth of beams are restricted, that leads to more deflection in a beam. An attempt has been made through this project to check the feasibility and efficiency of Mild Steel sheets used as a composite material with traditional RCC beams to modify its serviceability criteria. MS Sheets are used due to their economy, durability and are also easily available in large variety of cross-sections (gauges). MS sheets also have the property of being cast to any shape without much need of significant formwork.