Advantages of bar bending schedule when used along with reinforcement detailed drawing. It is the bar mark from structural detailing drawing that is transferred to the bar bending schedule. The british code bs 4449, bs 4482, bs 4483 and bs 6744 have certain standard bending shapes documented and called as shape codes. The radius of bending is stated in clause 10 on page 21 of the british standard. Different bar bending shaped codes are listed below.
Size for scheduling for bending former projection p bend shape codes to bs8666. Scheduling, dimensioning, bending and cutting of steel reinforcement for concrete. The spreadsheet works well and the yourspreadsheets team are always on hand to answer queries quickly and efficiently. Shape code 99 all other shapes where standard shapes cannot be used. Automatically bringing a shape into a cell using shape code. Our rebar shapes in accordance with bs4466 1998, bs8666 2000, bs8666 2005. To avoid separate equations for each steel grade and bending radius, schedlue total length formulae are used for shape codes 61, 77, 78, 79 and a major difference between this edition of bs and previous editions is that shape codes 60, 81, 72, 73, 74 and 86, which are specified by their internal dimensions, have been deleted and replaced by. These shape codes are the basis of which the third column is filled. A dimensioned sketch of the shape shall be given in the bending schedule. The dimensions in parentheses are the free dimensions.
Size for scheduling for bending former projection p. Brc arabia llc has a professional team of engineers and technicians who ensure the production of quality products as per clients bar lists and in compliance with bs4466 bs8666 or aci 318. The shapes above are only the most popular and are ready for quick. The revised british standard for scheduling came into effect on the 1st january 2006, replacing bs8666. Note 3 for shapes with straight and curved lengths e. Monitoring staff should have suitable templates for. Different formats are adopted by different firms but all includes the basic items i. In this session i will cover the topic how we can insert bar shapes in bar bending excel sheet please watch the video till end.
Bs 8666 reinforcement shape codes brc reinforcement. Here we need two values a and b longer side is a and shorter side is b. Bar bending schedule bbs estimate of steel in building. Jan 12, 2019 in bar bending schedule, the bars are organized for each structural units beams or columns or slabs or footings etc and detailed list is prepared which specifies the bar location bar in footings, slabs, beams or columns, bar marking to identify the bar in accordance with the drawing, bar size length of the bar used, quantity no. Bar bending schedule, commonly referred to as bbs is a comprehensive list that describes the location, mark, type, size, length and number, and bending details of each bar or fabric in a reinforcement drawing of a structure. Bar bending shape codes as per bs 4466 preferred sh 62 other sha es 65. Each of our shapes is made from the highest quality steel.
If the shape given in the table is required but a different dimension is to allow for. Bar bending schedule is an important structural working document that rightly gives the disposition, bending shape, and total length of all the reinforcements that have been provided in the structural drawing, including the quantity. Bar bending shape codes mostly for smallscale projects, the reinforcement calculated just based on the thumb rule but that was wrong. A dimensioned sketch of the shape shall be shown in the clients bending schedule as per engineer. All other shapes are shape code 99 and require fully dimensioned sketches. Cads information guides from the cads support team. In april 2000 a new british standard bs 8666 the specification for scheduling, dimensioning, bending and cutting of steel reinforcement for concrete was introduced. For your convenience, we have illustrated the most common shape codes available. Shape code 47 shape code 51 shape code 56 shape code 63 shape code 64 shape code 67 shape code 75 shape code 77 shape code 98 all other shapes are shape code 99 and require fully dimensioned. What is bar bending schedule definition, format, software. Shape code 98 length to be calculated shape code 99 all other shapes where standard shapes cannot be used.
Moreover, if we prepared the bar bending schedule along with the bar bending shape codes, it could be easy to cut the steel bar for the reinforcement as per the design. Compliance with a british standard does not of itself confer immunity from legal obligations. Uk rebar shape codes download and print this full pdf guide here 8mb, 5 pages bs 8666. Where the shape of a bent bar is such that it cannot be obtained. A bar bending schedule is usually prepared by a quantity surveyor and verified by a structural engineer. It is often provided in a separate sheet usually a4 paper from the structural drawing. If bending creep is deducted, ensure that the total length is sufficient to the bending machine.
Bar bending shape codes shape codes are the building stones of a perfect bar bending schedule. The inside radius of bends is very important to ensure that the bars were not overstressed during bending. It also makes easier to cut the steel bar for the reinforcement as per the design. Bar bending schedule for building reinforcement excel. A dimensional sketch of the shape shall be given in the bending schedule. Shape codes are the building stones of a perfect bar bending schedule. Bbs or bar bending schedule is a detailed report of list of reinforcement types and sizes, its quantities, shape codes, dimensions and designated bar mark numbers with reference to a detailed structural drawing.
Note 2 five bends or more might be impractical within permitted tolerances. I have shape codes and each shape code for each shape. Radii of all bends are standard unless r is given in the bending schedule. Above flash video shows the bar input process in action. Shape codes increased from 16 to 34 electronic data files by agreement bar and fabric schedules may be in the form of electronic data files plain round grade 250 bar no longer referenced dowel bars reference should be made to bs en 10025 or bs en 8773 bending formers unchanged. Sarcea cover blocks spacers rebar reinforcing steel. Bar bending shape codes bar bending schedule formula. Rebar shape codes use shape code 99 for all other shapes.
Bar length deduction as per site practices deducts bar length one dia. Jul 07, 2018 in this session i will cover the topic how we can insert bar shapes in bar bending excel sheet please watch the video till end. Aci 31599 supersedes aci 31592 and became effective august 31, 1999. At the same time for largescale project the bbs schedule prepared by the bar bending shape codes to avoid the unnecessary wastages. Sep 09, 2018 bar bending schedule is an important structural working document that rightly gives the disposition, bending shape, and total length of all the reinforcements that have been provided in the structural drawing, including the quantity. Shape code 29 shape code 31 shape code 32 shape code 33 shape code 34 shape code 35 shape code 36 shape code 41 shape code 44 shape code 46 shape code 47 shape code 51 shape code 56 shape code 63 shape code 64 shape code 67 shape code 75 shape code 77 shape code 98 all other shapes are shape code 99 and require fully dimensioned sketches. I will be entering the shape code in a cell and excel should automatically find the shape and bring the shape in another cell. Reinforcing bar ancon rebar couplers prefabricated rebar cages reinforcing mesh all mesh types d49 wrapping mesh square mesh fabric shape codes cut and bent rebar contact us. British standard bs 8666 the specification for scheduling, dimensioning, bending. Note unless a is small relative to d, this shape is fabricated in a closed form and pulled to shape on site.
Introduction bar bending schedule is an important structural working document that rightly gives the disposition, bending shape, total length, and quantity of all the reinforcements that have been provided in a structural drawing. Without any deductions in bar length bar length deduction due to bending. How to insert bar shapes in excel excel for engineers. Greenfield works ballylough road castlewellan county down bt31 9jq. B00 bar shapes diagram roads and maritime services. British standard bs 8666 the specification for scheduling, dimensioning, bending and cutting of steel reinforcement for concrete. Bs8666 shape codes steel reinforcement for concrete bs 8666.
Try different values typically 150 to find the correct offset. If bending creep is deducted, ensure that the total length is sufficient to the bending machine to grip the last bend. Below is an extract of clause 10 radius of bending from bs8666. Bs 8666 standard shapes, their measurements and length calculation note. Where r is greater than the minimum value in table 3 bsuse shape code for bending and rebending on site refer to bs revisions british standards are updated by amendment or revision. It also specifies the requirements for scheduling fabricated reinforcing steels, including a standard notation for different reinforcing steel types, standard bent shapes, and standard designations of welded fabric.
Shape codes and reinforcing mesh specsdownload bs 8666 shape codes free downloadpdf file. Bar bending schedule shapes codes for steel bbs codes. Rebars can be cut and bended to different shapes used in various structures. This process of listing the location, type and size, number of and all other details is called scheduling. When the bending angles approach 90 degrees, it is preferable to specify shape code 99 with a fully dimensioned sketch. There are multiple features that make the spreadsheet easily adjustable to users. A dimensional sketch shall be drawn the dimensim a to e evey shall. A dimensioned sketch shall be drawn over the dimension columns a to e. Everything about bar bending schedule civildigital. It shows the type, shape, length, weight and numbers of bars which are going to be used on site as per the design of structure. It also includes a shape code popup window to speed up input process. Download and print this full pdf guide here 8mb, 5 pages. Spacing mostly used for ties, stirrups etc shape of bar or shape code from a. British standard shape codes trident steel reinforcements ltd.
Bar bending schedule for foundations, columns, beams and. Preparation of bar bending schedule for floor slabs structville. Where r is greater than the minimum value in table 3 bs 4466 1989, use shape code 51. Although bs4466 is superseded it is still used and is described below for reference purposes.
Note 3 to avoid separate equations for each steel grade and bending radius simplified total length formulae are used for shape codes 77, 78 and figure 4 bar label 5 form of bar or fabric label 6 dimensions the schedule reference and the mark given in the 6. Rebar shape codes uk eurocode reinforcement heaton. Whenever requested by client, brc arabia llc can prepare bar bending schedules bbs. The standard includes requirements for the cutting and bending of reinforcing bars and coils. Bar length deduction as per british code bs 8666 deducts bar length with r factor as per bs code 3. This spreadsheet is characterised by its simple and user friendly interface that allows quick input of information in a clear format. It is a sheettable of specifications about steel bars which are going to be used on site as per design of that structure. No other shape code number, form of designation or abbreviation shall be used in scheduling.
However, if you require a different shape code, please contact us to discuss your requirements. Jul 18, 2017 this is obtained based on the bending details of the reinforcement. Table 1 maximum limit for which a preformed radius is required. When calculating the reinforcement detailing for different members for a building, taking account of small bent ups and other angle detailing will make the difference of effective and economic bbs. In april 2000 a new british standard, bs8666 the specification for scheduling, dimensioning, bending and cutting of steel reinforcement for concrete was introduced, replacing bs 4466. This is obtained based on the bending details of the reinforcement. For cutting and bending purposes, schedules shall be provided on separate sheets of paper of size a4 of drawing schedule revision bs and not as part of the. They are bent and welded to meet or exceed all construction standards. Some of the examples of shape codes are given below. Bar bending schedule provides details of reinforcement cutting and bending length. Shape code 99 shall be used for all other shape codes. Shape diagram total length of bar, l measured along centre line the values for minimum radius and end projection, r and p respectively, as specified in table 2, shall apply to all shape codes see 7.
A dimensional skecth of the shape shall be given in the bending schedule. Bending dimensions and scheduling of steel reinforcement for concrete published by the south african bureau of standards 1 dr lategan road groenkloof private bag x191 pretoria 0001 tel. The words bent in two planes or isometric sketch shall appear on the schedule adjacent to the sketch 8. Bs 8666 shape codes download bs 8666 buy standards in pdf format.
By prefabricating your reinforcing steel, we can save you labour at the construction site. Brc arabia llc uses only high quality steel from approved and. In bar bending schedule, the bars are organized for each structural units beams or columns or slabs or footings etc and detailed list is prepared which specifies the bar location bar in footings, slabs, beams or columns, bar marking to identify the bar in accordance with the drawing, bar size length of the bar used, quantity no. But for large scale project bar bending schedule is prepared by using bar bending shape codes to avoid unnecessary wastages. We have the most common types of shape codes available. Scheduling, dimensioning, bending and cutting of steel. Shape codes are designed to save you time and money. It would be beneficial for aspirant detailers to conclude their training by spending a few months cutting, bending and fixing steel. This is will effectively minimise the cost and wastage of reinforcement.
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