The BBS and bar reinforcement tonnage all came out smoothly and correct first time — we are really happy with the performance of the software. Not only did we accurately calculate the steel quantity, we were also able to efficiently use the off cuts to substantially reduce the quantity of scrap. Using the RebarCAD software meant we were able to produce detailed design drawings which led to the correct execution on the site. We have also been able to do high quality and accurate drawings at a faster pace. We are glad we invested in RebarCAD and shall recommend it to those who need to professionalise their rebar engineering processes.
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These three sub-commands control the input of data to the Schedule and determine how the bars are linked together. As a drawing is developed it is quite common to show the same bar in different views on the drawing. If a new line were added to the Schedule each time one of these views was drawn there would be too many lines in the Schedule. A mechanism is therefore required to update an existing line in the Schedule with the missing dimensions, number of bars etc.
This will also add a new line to the Schedule for this Bar Set. The New Mark function is the equivalent of the first set of a Bar Mark. This will not add a new line to the Schedule but may update the line already present in the Schedule for this Bar Set. This command allows the detailer to reuse the same Bar Mark in various locations within the structure.
It can be considered as a Repeat Bar Mark Number command. Note: a number of lines in the Bend List with the same Bar Mark can be combined into one line showing the total number of bars if required provided that they are all associated with the same Drawing Sheet and Release Code.
Theres more on Drawing Sheets and Release Codes later. The graphics could be placed using four simple steps on the plan and the section. The relationship between the Mark, Sets and the Views is shown on the family tree diagram above. The circled numbers on these diagrams refer to the order of working while the different commands so used are described further below.
This allocates a new Bar Mark to the reinforcement plus a line in the Schedule. This updates any missing data in the existing line in the Schedule. Items 1 and 2 are linked together as Set One of Bar Mark Item 3 shows in Set Two of Bar Mark 01 in figure 1. All the information for Set Two of Bar Mark 01 is already present in the Schedule and so this view of the bar indicates its placing position in the structure.
The Shape Code 21, shown in figure 1. Note: when you are drawing a bar an image of the bar will appear on the top right of your screen, showing what it is that youre drawing. The green numbers shown on this image commonly known as an AutoCAD Slide show the order in which to pick the Placement points. Figure 1. The white insertion point or the green number 1 on the Slide indicates the start point of the bar.
The green numbers then indicate which order to pick the points to place the bar. The bar can be drawn at any angle or orientation required. The green number 1 indicates the start point of the bar. The program automatically calculates the bar bending dimensions to the Outer Face of the bar for the Schedule. The color of the layer on which the bar is placed will dictate the line thickness when plotted. The distance between the lines as drawn will be the actual diameter of the bar.
It is good practice to develop a consistent drawing method. This is particularly important when detailing with a CAD Reinforced Concrete software package as you have the ability to perform massive edits very easily. Consider the extreme case of a bridge that has its span changed late in the detailing stage being able to use a command such as Stretch and have the outline, bars and Schedule update automatically is very powerful and a facility that would appeal to all detailers.
However, to minimise problems, its important that the original detail be produced in a standard manner. Always draw bars and ranges in a consistent direction: Either top to bottom or bottom to top Either left to right or right to left Any bars that are stretched remotely that is, not within the Stretch Window will be extended or trimmed from the insertion point so if all the bars were drawn consistently from left to right and top to bottom they would all stretch in the same direction. Remember that if you stretch the section of a Member the bars in the other views will update as well.
Good drawing practice needs to be followed consistently over the whole office as different detailers may work on the same drawing over a period of time. Develop a consistent approach to placing bars and ranges on the drawing. You can add reinforcement to a new drawing or to an existing one.
This chapter explains how to create new drawings, how to set the working scale of the drawing, and how to set up existing drawings.
With RebarCAD, rebar detailing and bar listing has never been easier.
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