Science, asked by kcgmailcom1136, 1 year ago

Difference between coffer slab and grid slab

Answers

Answered by Anonymous
0
When panel size is very large , solid slab will be a costly affair especially due to 
fact that concrete below NA is cracked and being un-utilised .Hence emerged the   
concept of Grid /Coffered slab wherein it can be visualized by removing 
the conc below NA from a very thick solid slab and putting the same in   
form of ribs closely spaced. 

Grid slab is thus , a series of thin beams closely placed in both directions of panel 
with a thin topping. 

This is economical from considerations of steel consumption (to some extent conc 
consumption too) when copared with solid slab , though form-work will be costly 
but overall it will be eco. 
hope it helps you.
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