A bar bending schedule (BBS) is a detailed list of all the reinforcement bars (rebars) required for a concrete structure. It provides information about the size, type, shape, length, quantity, and bending details of each bar. The purpose of a BBS is to help engineers, fabricators, and contractors accurately estimate, cut, bend, and place the steel reinforcement at the construction site.
In civil engineering, a BBS is essential for planning and managing reinforcement work. It ensures that the right amount of steel is ordered and that bars are prepared according to design. A good bar bending schedule reduces material wastage, speeds up construction, and helps maintain quality and safety standards.
Typically, a BBS includes:
Bar mark numbers
Bar diameters
Shapes and bending details (often shown using codes or diagrams)
Lengths of bars, including allowances for bends and hooks
Quantities for each type of bar
Silicon Engineering Consultants provides bar bending schedule and rebar detailing services that help construction teams work more efficiently and avoid costly errors.
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This is only a rough guide as there are factors to take into account such as variations in temperature, atmospheric pressure, altitude, etc. Simply measure the distance vertically in metres from your outlet or tap to the bottom of the tank or to the tanks' outlet then multiply that height by 0.1 until you reach your required BAR pressure. e.g 2 metres x 0.1 = 0.2 bar , 5 metres x 0.1 = 0.5 bar 20 metres x 0.1 = 2.0 bar 50 metres x 0.1 = 5.0 bar. So you will need your tank to be a whopping 40 metres above the tap to create 4 BAR of pressure. 40 metres is actually around 3.923 bar so to be accurate set the height at 40.001 metres to attain a snip over 4.0 bar.
What is a bar bending schedule? A BBS lists the type, size, shape, quantity, cutting length, and bending details of each rebar needed for a structure. It helps with material estimation, ordering, and cutting. π Steps to estimate a BBS β 1οΈβ£ Study structural drawings carefully Identify all reinforced concrete elements (e.g., beams, columns, slabs, footings) and note bar sizes, spacing, and bar shapes. β 2οΈβ£ Count and list each bar type Note the number of longitudinal bars, stirrups, ties, spirals, or mesh reinforcement for each element. β 3οΈβ£ Measure bar lengths Measure the actual lengths on drawings or use formulas: For straight bars: clear length + bends/hooks + anchorage/dev. length For stirrups/ties: perimeter of shape + hooks + allowances For spirals: number of turns Γ (Ο Γ diameter) β 4οΈβ£ Add standard allowances Include extra for bends, hooks, laps, and wastage (typically ~3-5%). Silicon Engineering Consultants offers bar bending schedule services that provide accurate, ready-to-use schedules for projects of all sizes.
IS 2502
A bar bending schedule (BBS) is required at site because it ensures that all reinforcement work is done accurately, efficiently, and with minimum wastage. When you have a BBS on site, it acts as a ready guide for fabricators and workers. It tells them the exact size, length, shape, and quantity of each bar needed for different parts of the structure β like beams, columns, slabs, or footings. By using a BBS, the team can cut and bend rebars according to precise measurements, which saves time and prevents errors. This also helps in tracking how much steel is being used and prevents unnecessary material wastage. Since BBS includes details like hooks, bends, and lap lengths, it ensures compliance with the design and structural safety requirements. Moreover, a BBS helps with easy planning, ordering, and storing of steel on site. It improves coordination between the design team, site engineers, and contractors. Silicon Engineering Consultants offers accurate bar bending schedule services that help site teams work smarter, avoid mistakes, and keep projects on track.
Half of the thickness of bar.
A bar bending schedule (BBS) is required at site to make sure the steel reinforcement work is done correctly, efficiently, and with minimal waste. It provides a clear and detailed list showing the size, length, shape, and quantity of each reinforcement bar needed for a structure. With a BBS, the fabrication team knows exactly how to cut and bend the bars, reducing chances of mistakes and saving valuable time. Having a BBS at site helps in ordering the right amount of steel, so thereβs no shortage or unnecessary excess. It also improves site management because workers can easily follow the schedule to prepare and place bars as per the structural design. This leads to better quality control, fewer delays, and more accurate cost tracking. In short, a BBS helps ensure the reinforcement matches the design, reduces material wastage, and makes the construction process smoother. Silicon Engineering Consultants provides bar bending schedule services that support accurate fabrication and efficient on-site operations for all types of projects. If you want, I can share a sample BBS or template β just let me know!
1.59 kg/m Try this link for Bar bending schedule prepation softwares http://www.rgsrebar.com
if the bar length is 5o m , what will be the actual length including lap length
Tar steel of 16 mm diameter, you can find this notation in Bar Bending Schedule (BBS) and steel detailing..
cutting length depends upon the beam length. its including L in both sides
It is a list of reinforcing for the works to be carried out, it lists location of the bar, bar mark, diameter of bar, number of pieces, length before bending, shape code and various lengths of the bent shape to show the maker where to bend It The schedule along with the steel drawing allows the workers to install the steel correctly.
This is an incorrect approach. The current method is the reason for the steel wastage. The steel saving is left to the hands of Bar Benders and site engineers.A scientifically proven system, to save steel in the construction projects is the need of the hour.Steel saving starts with the Rebar Detailed engineering. This is also called as Rebar Detailing. A professional Rebar Placing drawing and an optimized Bar Bending schedule (BBS) are the targeted output of the Rebar detailing.
when we have need to know the temperature in a bar about any distance we can use fourier series to know that and then we can apply sufficient temperature.