In fact experts have warned that North India could be the next. Punjab, HP, JK, Uttarkhand belt. Delhi is not far. If u see Gurgaon, its a mad house of high rises. Only god has to save them if something hits that area.
Location: God's own country
Posted on: 27-04-15 10:30:03
Adam,
How did you come to the 80% conclusion?.
I was just reading somewhere that the devestation was not that much in India since India uses earth quake resistant steel.
of course for the 7.9 magnitude earthquake this will not stand but then is there a techtonic plate near Delhi. The answer might be No.
We live in a earthquake prone zone (Kerala). I think it falls under zone 2 or 3 which is high risk. I see many structural drawings. All the latest buildings that come up here are with the structural engineer's note that it is designed to resist the seismic force that comes for this zone.
So I am sure that most of Delhi's high rise buildings would also be designed in that way. So the 80 % may be a wrong conclusion.
Murali
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I am a Gents and not a Ladies.
Thnks for donation links Mgupta. May the departed soul RIP and may God give strength to all who suffered in Nepal. Natural calamities are disastrous. 
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Revenge can be bitter sweet, but if u sit back and watch, KARMA can be pure entertainment.
Read an article in Times Of India yesterday quoting 80 %..not sure how reliable TOI is though . See LINK below.
http://timesofindia.indiatimes.com/city/delhi/80-of-Delhis-buildings-wont-stand-a-quake/articleshow/47064441.cms
They were also saying 38 Indian cities !!! ( some small - some big ) are directly in the earthquake zone ..and have a VERY high risk of earthquakes in future.
Quote:
Originally posted by tamilkuravan
Adam,
How did you come to the 80% conclusion?.
I was just reading somewhere that the devestation was not that much in India since India uses earth quake resistant steel.
of course for the 7.9 magnitude earthquake this will not stand but then is there a techtonic plate near Delhi. The answer might be No.
We live in a earthquake prone zone (Kerala). I think it falls under zone 2 or 3 which is high risk. I see many structural drawings. All the latest buildings that come up here are with the structural engineer's note that it is designed to resist the seismic force that comes for this zone.
So I am sure that most of Delhi's high rise buildings would also be designed in that way. So the 80 % may be a wrong conclusion.
Murali
If Kerala is 2 or 3 . Delhi is seismic zone 4 !!! and 80 % of bldgs. are NOT earthquake proof
http://timesofindia.indiatimes.com/city/delhi/80-of-Delhis-buildings-wont-stand-a-quake/articleshow/47064441.cms
80% of Delhi's buildings won't stand a quake ( Times Of India Article )
I found this comment interesting ..most towers in India are being designed that way thesedays
" Any Multi-storey building with open ground floor (without walls for Parking etc) performs very badly in an event of Earthquake... take not of it While you buy a house/flat etc. "
Most old bldgs. actually have a ground floor with flats, walls etc ..and might stand the earthquake better ..while new ones have open spaces at the ground floor for gym, car parking, recreation clubs , swimming pools etc.
Location: God's own country
Posted on: 28-04-15 07:46:46
Adam,
The comment is downright wrong.
Walls in the ground floor has nothing to do with the structure falling down. The walls may come down and hurt the people in the ground floor.
Mordern buildings (high rise) are made of columns and beams. The safest design is if each colum has beams on all the four sides. On the external, it will be 2 or 3 beams coming from each column.
The amount of steel in each column (to allow for some elasticity or torsion) in case of earth quakes is the key for the design.
Always get an apartment in which the stuctural engineer gives the certificate that it has been designed for the seismic forces of that region.
Load bearing structures are the most dangerous as it can collapse as it has been designed without much elasticity of conc. slab members.
On US Architect in my office used ti say that if only we Indians build from dry walls and use steel trusses for roofs, we would be so much safe in the case of an eath quake. COnc. is the most dangerous as it is a very heavy material.
Do you know that CN tower is designed for siesmic force of 7.4 or so?
Murali
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I am a Gents and not a Ladies.
