Ribs and Lugs in TMT Bars. What they are and Why they are Needed?

Even upon a slight examination of the TMT Steel Bars, one notices a pattern of rings and lines that cover the entire length of the rods. If you are of the thought that these are just to enhance the “appearance” of the steel bars, then you are wrong. These ribs and lugs are as much functional as aesthetic they might seem.

Occurring at regular intervals along the length of TMT Bars, the rings are called as “Ribs” and the lines are known as “Lugs”. They can be found in TMT Bars of all grades. As the core function of a steel TMT bar remains to impart added strength to abuilding structure, these ribs and lugs play an essential role in offering the same benefit as well. 

TMT Steel Bars are an imperative choice in enhancing the overall strength and load resistance in building structures. These features of ribs and lugs play into deriving the best functional advantages from these reinforcement elements and thus make your buildings safe and enduring.    

What functions do Ribs and Lugs serve in TMT Bars?  

The patterns of rings that occur at regular intervals along the Fe-600 Grade TMT Bars in Amritsar and other grades of steel rods are known as “Ribs” and they enhance the bonding strength between the TMT Steel Rods and concrete. By ensuring better grip in concrete and preventing slippage during construction, these ribs increase the overall traction between the rods and concrete resulting in better structural stability.     

By providing enhanced anchorage in concrete structures, these “transverse ribs ”help in even load distribution as well as heavy load bearing in construction.

“Lugs” on TMT Bars help reinforce the ribbing patterns and facilitate higher interlocking of bonds between the concrete and steel bars. These lugs or “longitudinal ribs” on the steel rods as they are also termed give the structures optimum stability and strength while enhancing the lifespan as well.   

Owing to the improvements in strength of bonds formed with concrete, these ribs and lugs together by maintaining high anchorage help derive the maximum yield strength and flexibility in steel TMT bars. 

Enhanced features with precise patterns of ribs and lugs   

Stated below are features that these ribs and lugs present to steel TMT bars -  

• Enhanced stability  
• Increased bending capacity    
• Improved bonding with concrete 
• Seismic resistance enhancement   
• Minimum concrete slippage 
• Reinforced anti-corrosion coating 
• Better longevity  

7 STAR Shri Rathi Group is one of the top Structural Steel Suppliers in Amritsar and offers an advanced range of Steel TMT Bars that embody the best precision in design, manufacturing and cost-effectiveness as well.