What Is The Bar Bending Schedule And How Do You Prepare It? - Fixanswer

Bar bending schedule or schedule of bars is a tabular representation of reinforcement bar . It is generally represented for each type of R.C.C work. ... Bar bending schedule generally describes the particulars of bars, shape of bending with sketches and total length and weight of the bars along with their numbers.

How do you do a bar bending schedule?

Identification of Members (Steel Bars) ...
Step 2 Count the Number of bars. ...
Step 3: Calculate the length of Reinforcement bars. ...
Step 4: Calculate the unit weight of Reinforcement Bar. ...
Step 5: Calculate the Weight of particular Shape of Bar.

Why is bar bending schedule prepared?

Bar bending schedule provides details of reinforcement cutting and bending length . Advantages of bar bending schedule is when used along with reinforcement detailed drawing improves the quality of construction, cost and time saving for concrete construction works.

Who prepares a bar bending schedule?

Detailer.
person checking the drawing.
contractor who orders the reinforcement.
organization responsible for fabricating the reinforcement.
steel fixer.
clerk of works or other inspector.
the quantity surveyor.

Is code for steel bending?

Location Mark Designation Size and Type	(1) (2) (3)	Column C4 4R 25 N MS Road 25 mm

What is cutting length in bar bending schedule?

BBS of Column	Dia of Bar 1. Main Bars = 16mm ; 2. Stirrups (Longitudinal bars) = 8mm	No. of Bars used 1. Main bars = 4 2. Stirrups = 30	Cutting length 1. Main bars = 3.16m 2. Stirrups = 2.64m	Total Length of bar 1. Main bars = 18.4m 2. Stirrups = 43.2m

How do you measure the length of a bent bar?

Inclined Length = D/(sin 45°) – dD/ (tan 45°)
= (D/0.7071) – (D/1)
= (1D – 0.7071D)/0.7071.
= 0.42 D.

Why rebar cover is required?

to protect the steel reinforcement bars (rebars) from environmental effects to prevent their corrosion ; to provide thermal insulation, which protects the reinforcement bars from fire, and; to give reinforcing bars sufficient embedding to enable them to be stressed without slipping.

What is the lap length?

The lap length is the length provided to overlap two rebars in order to safely transfer load from one bar to another bar and alternative to this is to provide mechanical couplers. It is also known as lap splices.

Why bent up bars are provided in beams?

The crank bars or bent up bar are very important in R.C.C beam or slabs construction because without countering the Hogging (Negative moment) the structure will fail or the strength of the structure will reduce . The hogging bending moment will develop at the supports of the slabs and beams.

What is bar mark in reinforcement?

The bar mark (e.g. “ T2 ”) represents the type of reinforcement present in the column . Each bar mark in the schedule is also shown in the Section Legend with a graphical representation of the column section and the reinforcement.

How do I create a BBS column?

Step 1 – Find the length of Vertical Bar. Length of Vertical bar = Development length (Ld) + Height of Ground Level + Floor Heights (1,2,3)+ Slab Thicknesses + Overlap Length (Det.B) ...
Step 2 – Find out lapping. ...
Step 3 – Cutting Length of Stirrups. ...
Step 5 – Bar Bending Schedule.

How do you bend reinforcement bars?

Manually bending rebar or bending it by hand is the most basic method of bending rebar. It is also the safest and easiest method. The first step is to encase the steel bar inside two pieces of metal piping. Next, thread the steel bar through both pipe pieces and let them intersect at the point where you want to bend .

How much can I deduct for a 90 degree bend?

The most common deducts are 5′′ for 1⁄2” conduit, 6′′ for 3⁄4” conduit and 8′′ for a 1′′ bender . It is a function of the curvature radius of the bender and cannot be changed. The deduct for your bender should be stamped on the bender.