The Supreme Court order of demolition of five buildings in Marad, Kerala has come as hot news in media with the people applauding the order as well as a few condemning them. This has not been the first instance of demolition of buildings for illegal construction in coastal lines against the CRZ regulations. Rainbow restaurant, in the banks of Periyar, Aluva also met a similar fate of demolition for illegal construction on CRZ regulations in 2014. Why were these construct to be taken down and what does the coastal regulation zone mean. It has been a question that plagues us.
Wooden structures are lightweight, energy efficient, versatile and sustainable solutions. In Earthquake prone areas wooden structures have the advantage that the wooden framed building won’t break off easily. They are flexible, economical and more versatile compared to concrete structures. Availability of cheap wood, flexibility, and aesthetics were the major factors that induced people towards wooden structures.But the case is different for cyclone-prone coastal areas. Although the vulnerability of a structure to a cyclone is circumscribed by its siting, the possibility that a cyclone will occur, and the extent to which its edifices can be damaged by it, concrete structures are always preferred than wooden ones. Concrete buildings, although ordinarily more expensive than wood frame structures, are totally worth it in the long term.
Over the past few months, a slew of fire accidents has occurred In India damaging human lives, properties and goods. In a tragic incident, 20 students died after a fire broke out in a private coaching center in Surat, Gujarat last month. Eyewitness recall that in a bid to escape the blaze, students were seen jumping and falling from the third and fourth floors of the building. This accident is just one of the countless fire tragedies in the country.
We have been talking about the pros and cons of steel and concrete as a construction material. Let’s get a better understanding on why they work better together. Anyone reading about construction materials would have come across the saying – Concrete is good against compression, but weak in tension whereas steel bars are good in tension, but weak in compression. What a few had inferred from the statement is that, steel is naturally weak in the face of compressive forces, which is not the case. Steel is good in both compression and tension. Steel bars or steel reinforcement bars are weak in the face of compressive force due to their dimensional property. Steel reinforcement bars have an insignificant cross sectional area when compared to the length of the steel bars, and thus the ability to withstand compressive forces are naturally less.
The construction of a commercial or residential building cannot be imagined without the use of concrete and steel. These two components are the most essential composite in the construction field. The reasons why they are preferred is their advantages in terms of strength and withstanding the loads. However, what if a comparison was made between concrete and steel. To see which one tops the other in terms of certain parameters.
So, which material surpasses the other in the field of construction – concrete or steel?. We know that both are important for constructing a structure but let us find out what these two materials are capable of.
TMT reinforced steels are currently the defacto standard for constructing commercial building projects and residential buildings. Known for its high tensile strength and ductility ratio, it is the ultimate option for reinforcement. Part I of this blog explained about TMT steel and its manufacturing process. To get the complete effect of the reinforced bar, there are certain things that must not be done. Some of these steps were explained in Part-I. Here we further a few more features.
TMT reinforced steel is the ultimate solution for reinforcement of a commercial structure. What the steels provide are the necessary tensile strength and ductility that is needed for the structure to withstand the forces of nature effectively and increased longevity to structure. The TMT steels are used because of its high tensile strength and ductility, which is resulted from the QST process that the reinforced bar undergo.
Reinforced steel is the most important component in the construction of buildings. Its multiple advantages in terms of strength and ductility are the sole reason for its increasing popularity and demand. Different versions of reinforced steel bars were introduced such as Mild Steel, HYSD etc. Each had their particular advantages that made it better than its predecessors. However, with the demand for more strength led to introducing stronger and better-reinforced steel bars. One such example is the TMT steel bars.
TMT steel reinforced bars have been used in constructions of building structures for a long time. They are primarily preferred due to the advantages offered in terms of tensile strength and ductility ratio. TMT Steel reinforced bars consists of different grades namely Fe 415, Fe 500, Fe 550 and Fe 600. Because of the availability of different grades and many dealers promoting different versions of the steel reinforced bars, purchasing the right TMT steel reinforced bar is an important task
The current construction of building structures is dominated by reinforced steel. Reinforced steel bars are preferred for their unmatched tensile strength which the concrete is weak to provide and ductility factor, that helps to withstand the load of the structure. There are different grades and different diameters (mm) of the reinforced bars in the current market namely Fe 415, Fe 500, Fe 550 and Fe 600.