What is the standard size of hook? What is hook length in reinforcement

So what should be the standard size Apri bars Hook? Hey, my name is Silhan and you are watching in Engineer Boy Dears. I hope you already know that the desired tensile stress cannot be developed by Bond alone. That is why we do provide special encourage at the end of the bar by means of a 90 degree or 180 degree or a headed bar. The band radii in dimensions per hooks have been standardized in ACI code 7.1 which I am going to discuss.

Deduct the concrete cover or clear cover.

Were here. Remember according to ACI a 180 degree band plus an extension of at least four by diameters but not less than 2 1/2 inches at the pre end of the bar are a 90 degree band plus an extension of at least 12 bar diameters at the pre end of the bar.

And if you consider stirrup and tie encourage only according to ACI per #5 bar in smaller and 90 degree bend plus an extension of at least six bar diameters at the pre end of the bar is tenderized and per number 6-7 and eight bars and 90 degree plus in extension of at least 12 bar diameters at the pre end of the bar is tenderized.

Deduct the length of bends.

Also per bars are smaller a 130.Five degree band plus an extension of at least six bar diameters at the pre end of the bar is tenderized. Remember the minimum diameter of band measured and the inside of the bar pers tender hooks other than pers stirrups or ties in size #3 through pipe should not be less than the videos shown in the parving table. I have taken this table from a nice book Design of Concrete Structures and that is written by Nelson.

According to SCI code, per ties in stirrup soaks, the inside diameter of band should not be less than pore bar diameters per bar size #5 and smaller. Also a welded wire reinforcement is used per stirrups or ties. The inside diameter of band should not be less than pore wire diameters per the palm wire, larger than D6 and two wire diameters per all other wires.

Bands with an inside diameter of less than eight wire diameters should not be less than pore bar wire diameters from the nearest welded intersection.