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Like our Facebook PageSome days ago I have posted a Picture of an eccentric isolated foundation and I asked my fans on facebook that whether it is right to place an isolated column foundation like this or not?
As a result I have got some very useful and insightful comments of my fans which i though I must share with you on the subject of eccentric footing, cantilever footing or shoe footing.
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JD Orendain
No strap beam? Thats just not right. The footing cant handle the moment due to eccentricity of the column. Property footings require strap beam so as to handle the moment and for the footing to act as a double cantilever footing.
Aquil Sohail
It is right..This type of footing is called shoe footing….For this type of footing required more depth and heavy steel..I was cast like this type of footing on site .. Mostly use when space is very less ..
Engr Anwar Khan
Its eccentric footing use mostly to the property line.if it a multi story builing need to connect with other footing such is strap beam/combine footing to avoid tilting of the footing.
Mukassar Najeeb
If load is less than no problem but provide a strap beam in footing equal to length of footing only no need to connect with another footing
Mohamed Abd
if it is a single.storied.building no.issue.but for a multisrotied building better to plant a column at the.eddge of.the.footing untill meet a strap.bram at the tie.beam.level
Kunal Kutwaroo
No blinding layer. No cover. No strap beam. Wrong
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after completion of installation of addtional reinforcement with 16mm dia with 300 dia spacing rebar on site, the rebars dia was updated with 20mm dia in design drawings with 300mm spacing.what will be the possible addtional rebard to be added to make it equal 20mm dia bar strength with out removing the existing 16mm dia bar.( i prefered 12mm dia rebar in paraellel to 16mm dia with 75mm spacing each other i.e. for 16mm dia it will be 300mm spacing and 12mm dia also it wll be 300mm spacing).More important is that, Need to know the strength of 20mm dia can be equal to 16+12mm dia?? (as the area and wt: of 20mm dia bar and (16mm+12mm) is equal). waiting for urgnent reply.
after completion of installation of addtional reinforcement with 16mm dia with 300 dia spacing rebar on site, the rebars dia was updated with 20mm dia in design drawings with 300mm spacing.what will be the possible addtional rebard to be added to make it equal 20mm dia bar strength with out removing the existing 16mm dia bar.( i prefered 12mm dia rebar in paraellel to 16mm dia with 75mm spacing each other i.e. for 16mm dia it will be 300mm spacing and 12mm dia also it wll be 300mm spacing).More important is that, Need to know the strength of 20mm dia can be equal to 16+12mm dia?? (as the area and wt: of 20mm dia bar and (16mm+12mm) is equal). waiting for urgnent reply.