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How to make a Bar Bending Schedule for Beam and Column - A Step by Step Guide
The bar bending schedule (BBS) acts as the most useful tool in the construction industry, as it helps to provide a clear list of type, cutting length, size and also the quality of the reinforcement bars that are required for different types of structural members, including columns, beams, footings and slabs. The tabular format of the bar bending schedule helps to make the construction process easy.
Importance of Bar Bending Schedule (BBS)
Reducing steel wastage
The BBS helps to ensure the accurate cutting and bending of the reinforced steel bars, which helps to reduce the risks of errors and leftovers of the bars.
Estimates the steel quantity
The BBS helps to allow the construction engineers to estimate the exact quantity of steel reinforcement, which has been required for the specific construction project.
Aids bar bending and cutting work
The BBS helps to provide clear details about the bars, which makes it easy for the construction workers to cut and bend the bars without any kind of confusion.
Speeds up the construction side works
With the help of the BBS, everything regarding the reinforcement process is planned in advance; as a result, the construction workers can focus on fixing the bars rather than figuring out the shapes and sizes of the bars.
Simplifying the procurement process
The BBS helps to provide a clear list of the steel bar requirements, which helps to improve the budgeting and purchasing process of the construction project.
Increased accuracy in the construction work
The BBS also helps to ensure the accurate placement of the reinforcement in slabs, beams or columns, which helps to enhance the sturdiness of the construction structure.
Inventory management feature
The BBS also helps to manage inventory and reduces the chance of material deficiency or surplus by maintaining the steel stock appropriately.
Time management feature
The BBS helps to save time on the construction project by providing accurate guidelines regarding the reinforcement process.
Quality control feature
The BBS helps to ensure that the design of the construction project and the building codes are followed properly.
Provide accurate guidance
The BBS helps to offer correct information to the construction employees, which helps to improve the overall construction procedure.
Learn about the Bar Bending Schedule (BBS) for beams
The BBS for beams refers to the detailed tabular representation of the reinforcement bars that have been used in the reinforced concrete beams. The BBS for beams is one of the crucial documents in the civil engineering field, which helps to provide an accurate estimation of the reinforced bars for beams. The parameters that are crucial to determine the bar bending schedule for beams are as follows-
- The cutting length of the top bar
- The cutting length of the bottom bar
- The accurate number of stirrups
- The accurate weight of the stirrups
- The accurate cutting length of the stirrups
Step-by-step guidance for preparing the Bar Bending Schedule for the beams
It is important to create an accurate BBS for beams to ensure cost-effective and error-free reinforcement work on the construction site. The steps involved in the preparation of the BBS for beams are as follows:
- At first, the structural drawings should be interpreted to identify the dimensions of the beams, the length of the span and the reinforcement details of the bars.
- In the next step, the bars should be classified into main bars, distribution bars, stirrups or cranked bars on the basis of their functions.
- After that, the cutting length of each type of bar should be calculated by using the dimensions of the beams.
- In the next step, the quantity of bars should be estimated according to the requirement for the beams.
- The total length and weight of each bar should be computed by using the standard formula, which helps to determine the accurate requirement of the steel.
- After that, the tabular format of the BBS for beams should be prepared by listing the bar mark, the space of the bar, the diameter of the bar, the type of the bar, the cutting length of the bars and others.
Learn about the Bar Bending Schedule for the column
The BBS for column refers to the calculation of the amount of reinforcement required for the construction of the columns in the construction structure. It needs to be ensured that the actual length of the reinforcement bars includes the extra length for the bends and hooks during the preparation of the BBS for columns. In this context, the hook length has been added at the end of the ties and stirrups, which helps to prevent the risks of slipping.
