As you may know, the lateral deflections and drift ratios of a superstructure could be compared with some criteria. I was wondering whether there was something like them for the foundation rocking.
Dear Navid,
The lateral deflection of a superstructure normally allowed by maximum of 5 mm beyond this value the chances for failure of the structure is more..
Dear Karthigeyan . S
Would you please garnish your statement via some references? Isn't that value, i.e., 5 mm, quite small? I am a tad confused, to be frank. It is of appreciation if you could provide some examples, illustrating your point.
Regards,
Navid
Dear Navid,
Yes you could feel the permissible tilt of the structure is less but imagine the tilt by more than 5 or 10 mm mean it have a chances for rotation of the structure. But, i think you are looking for the structural movement due to the effect of earthquake loading..the tilt of 5 mm is given in the Indian standard guideline for the design of foundation..as per Indian standard guideline the permissible lateral deflection of the pile subjected to lateral load is 5 mm. you please look at the design guideline suggested from your country..however, many researchers addressed that the value is very small and need revision for it..ok all the best..
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