Several parts of India are excessively earthquake-prone. In fact, the past few big earthquakes in the country (like the ones in Latur in 1993, Bhuj in 2001 and Kashmir in 2005) have been seared in our collective memories as incredibly tragic events.

Can we be better prepared for any future seismic events? Have we learnt anything from past tragedies?

The answer is Yes!

After the Latur earthquake, TMT steel bars were deemed compulsory for important construction projects across the country – especially in regions that were at high risk of seismic events.

This ruling came in effect because TMT bars are known to be highly earthquake resistant. The manufacturing process of TMT or Thermo Mechanically Treated bars ensures that the outer area is hardened while the inner core retains its ductility. This makes TMT bars strong as well as flexible.

Here is a detailed look at some features of TMT bars that make it especially useful for earthquake-prone areas –

1. Ductility –

Ductility is the most important feature of TMT bars when it comes to seismic resistance. Due to its unique manufacturing process, TMT bars are able to bring a higher level of flexibility to the structure. This ensures that when buildings are shaken up during an earthquake, it can retain its structure.

2. Corrosion resistance –

In the long run, corrosion also plays a part in weakening RCC structures. Naturally, these compromised structures are the first to collapse during a seismic event.

TMT bars also have enhanced anti-corrosion properties and come with a unique cross-rib formation which ensures that the concrete is always tightly bonded with the steel bars. When matched with their superior bendability, these bars keep buildings standing even under high stress.

3. High Strength –

Earthquake resistant TMT bars (or BhookampRodhi TMT bars) also come in various grades of strength and ductility. Depending on the seismic zone the structure is being built in and the type of construction, the construction company, has the choice of a range of TMT bars. For example, Moira Sariya produces high-quality TMT bars (8mm to 40mm dia.) in Fe-500, Fe-500 D, Fe-550, and Fe-550 D steel grades, which offer the perfect combinations of strength and bendability for seismic areas. These bars are also differentiated based on lower levels of sulphur and phosphorus.

In an earthquake, the most damage is done when a building collapses. To make sure that a building is structurally sound, best construction materials, including TMT bars, must be used along with a design that follows all the construction codes and safe practices.

If you are considering building in a seismic area, then TMT bars should be your default option for steel. Do check out Moira Sariya portfolio for its range of earthquake-resistant (BhookampRodhi) TMT bars.