This is the building of the Bharat Sanchar Nigam Ltd (the telecom department ) and one of the most recently constructed building. One of its striking feature is that its built in a slanting way and this is suppose to be earthquake proof. Shillong falls in the earthquake belt and in the year 1897 Shillong experienced one of the most devastating eartquakes in the history of India ......well whether this building is really earthquake proof or not....i don't know and won't want to experience it too. 
11 comments:
no building is completely earthquake proof, only diffrence is that these sort of buildings can absorb up to certain levels of quake and damage would be much less than normal constructions...but still these are better than normal buldings
Nice capture.
If the building plan is circular or in symetri, the chance to withstand the quake are bigger. However, all depends on the magnitude and duraton of the quake.
But the main point is : the building have to stand as long as to give the occupants a time to escape.
Hope never happen anyway.
Great notice.
btw thank you for your pray for Pasha. He is 15 now and want to be an aircraft designer.
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the angle in which you have taken the picture makes the building look as if it is about to fall down!!! hope it stands through the worst quakes!!
nice
well nitu chnaces of survival of construction depends lot on construction. Diffrent technology are used for diffrent seismic zones.
An earthquake-proof building is a building that has been built to survive an earthquake. The building is built with special technology that has materials made in earthquake areas. No building, however, can be made 100% safe and building earthquake proof structures to be more effective is just trial and error.
One type of technology is called isolated base technology. This involves using a coil or other flexible support and placing it between the structure and the foundation of the building. This system counteracts the motion of the seismic waves. As the earthquake moves the foundation one way, the support moves the other way, and the building stays nearly completely stationary. Another feature of modern buildings is the use of cross-supports in between the frame supports, or between the corners of the frame. These supports hold the structure together during an earthquake.
A building's strength also has to do with the material of which it is composed. Most modern buildings use steel alloys, but concrete is sometimes used for smaller buildings. If one designs a building out of steel but does not utilize the materials correctly, that member will make just as weak a building as a building made out of wood. The use of materials is a critical aspect of a building; it will determine whether a building will withstand an earthquake.
During the violent shaking of a high-magnitude earthquake, an outrigger will support the structure. If the structure begins to fail, the outriggers will hold up the structure. The problem with an outrigger system is that if an outrigger were to fail from the force of a collapsing building, the damage would increase outside the perimeter of the building as the outrigger fell outwards. Outriggers must be employed selectively because of their potential disadvantages. Tokyo contains these buildings.
Buildings fail in earthquakes because joints and connections cannot resist the tremendous stresses imposed by many tonnes of pressure concentrated on bolts, welds and other fixings.
However it has been recorded that some buildings will sway up to 30cm each way in the occurrence of an earthquake. Dangerous materials for earthquake buildings are : glass, bricks and other breakable materials.
ya..who wants to be shaken by a quake!!
@Dr.nishi, Saptono
thanks for sharing the info.
@ avinash
thanks avinash for taking the trouble of explaining the enginering part of the building.
It was very informative.
When I first saw the pics, I thought the leaning was caused by the angle you took the photo at. What awesome pictures of the building!
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@naval langa
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