Bar bending schedule
User has the option of manual data entry of each bar or import of batch of bars from Excel. However, if the actual available length is inadequate for full development, special anchorages must be provided, such as bends, hooks. Those should be strength enough to bear the loads without changing the gap of two layers. Table of bar bending schedule summarizes all the needed particulars of bars — diameter, shape of bending, length of each bent and straight portions, angles of bending, total length of each bar, and number of each type of bar. The bar bending schedule should be prepared and it should be submitted to the steel bar steel yard to cut and to bend the bars for purposes, because bar bending schedule is the simplest of details what is in the drawings which can easy to under stand for bar benders.
|Date Added:||25 April 2014|
|File Size:||49.16 Mb|
|Operating Systems:||Windows NT/2000/XP/2003/2003/7/8/10 MacOS 10/X|
|Price:||Free* [*Free Regsitration Required]|
First the top most reinforcement bars are hung over the beam formwork and then the stirrups are placed and bound at correct positions. Hence to withstand tensional stresses, steel is need in concrete. Main bars of the columns were adjusted to ensure the covering requirements before concreting. Stools are used to separate the top reinforcement mesh and bottom reinforcement mesh.
It is mainly to prevent upward bending moment near the joint. When mechanized bar cutting and bending is used, the cost of reinforced concrete work per unit reduces and helps in cost optimization of construction project. Most of Columns centers were located at intersections of grid lines. When Bar bending schedule is available, cutting and bending of reinforcement can be done at factory and transported to site.
BBS: Bar Bending Schedule - Solutions| CCT
Generating lists of reinforcement steel bars with size, number of bars, cutting length, weight bendong steel and a sketch representing the shape of the bar to be bent with all dimensions and bend angle is a crucial task in every construction site that needs excessive amount of time for data entry and calculations. Bar cranking is the process of bending up the scheduel steel bars in upward direction. The bar bending schedule should be prepared and it should be submitted to the steel bar steel yard to cut and to bend the bars for purposes, because bar bending schedule is the simplest of details what is in the drawings which can easy to under stand for bar benders.
Reinforced concrete is the most schdeule used structural material in engineering construction. Preparing and maintaining bar bending schedule data at construction sites is one of the most time bencing and tedious tasks. The method adopted for the arrangement of beam reinforcements is as follows:.
Bars may be deliberately left short for constructability and transportation concerns.
Advantages of bar bending schedule is when used along with reinforcement detailed drawing improves the quality benidng construction, cost and time saving for concrete construction works. Other activities such as excavation, PCC etc can proceed parallel with this activity.
It can be seen as a powerful reporting tool that generates various forms of reports for management, engineers and fabrication shops. They were made up of 1: Reinforcement bars are bwnding into required lengths and bent into required shapes shown on the bar schedule either manually or by means of machinery.
Bar bending schedule or schedule of bars is a list of reinforcement bars for a given reinforced concrete work item, and is presented in a tabular form for easy visual reference. With the use of bar bending schedule, mechanization of cutting and bending of reinforcement can be done, again schedkle the cost and time of project and dependency on skilled labor requirement. This distance is called Lap length.
All the beams were checked to ensure adequate cover blocks are provided to the bottom and sides of the beam reinforcement. Preparation of Bar Bending Schedule Bar bending schedule or schedule of bars is a list of reinforcement bars for a given reinforced concrete work schedjle, and is presented in a tabular form for easy visual reference.
Bar Bending Schedule for Reinforced Concrete Beam
It is necessary to be careful about length when preparing bar schedules. Figure 1 depicts the shape and proportions of hooks and bends in the reinforcement bars — these are standard proportions that are adhered to:.
It enables easy and fast preparation of bills of construction works for clients and contractors. It is complete standalone software that eliminates time consuming work of bar data entry, length calculations and dimensions constrains enforcement. Before placing the re-bar, correct spacing given in the detailing drawing were marked by using piece of choke on the slab formwork.
Concrete beams vary in depth.
Preparation of Bar Bending Schedule and Its Advantages
In my site specify the stirrup dimensions in our section drawings, so that the stirrup can be manufactured prior to installation. Column stirrups were tightened up to beam bottom level and rest is tightened once beam reinforcement is fabricated. It becomes easy for site engineers to verify and approve the bar bending and cutting length during inspection before placement of concrete with the use of bar bending schedule and helps in better quality control.
Bar bending schedule is very much useful during auditing bag reinforcement and provides checks on theft and pilferage. These stirrups are usually one piece of steel that is bent into a rectangular shape. This increases faster execution at site and reduces construction time and cost due to less requirement of workers for bar bending.