Top 6 Rebar Detailing challenges and ways to overcome them
A typical challenge you may face when designing reinforced concrete structures with 2D drawings is finding the right angles for the reinforcement to go in. For example, you might spend a lot of time reworking or amending the same designs over and over again. The result may be a squeeze on the overall schedule of the project and even a slip, resulting in increased project costs.
In a 2D design world, a simple typo can cause many inconveniences. It is possible to specify some bars incorrectly in a 2D drawing.
You can imagine a shop drawing that shows a bar with a marking of 2 instead of 7. In light of the 15 millimeters diameter difference between these bars sizes, the mistake cannot be corrected onsite after the bars are fabricated based on the drawing. It will delay your project schedule, waste material & increase your costs if you order new bars.
Any minor errors can easily be spotted and corrected when viewing a 3D model of the construction. Due to their distinctive and automatic markings, different types of bars have different colors. By including color to the bars, 3D shows them exactly as they appear in life, and identifying errors early is much easier.
New Details Addition
The design process may reveal details or sections that need to be added or changed. When doing it in 2D, it can be quite time consuming, tedious, and manual. If these extra details need to be tracked, you might need to make new drawings.
SolutionIt is easy to add new sections or views to a 3D model when using 3D design tools. Changes can also be seen and commented upon immediately by all parties involved in the project. There is no need to create a model and drawings separately since the drawings are created automatically. The model can provide all the deliverables you need.
Once the construction process starts, several people begin working together to put together all the pieces. It is common for designers and contractors to work in silos and create separate 2D drawings.
Their work often does not integrate the entire construction design until construction begins. Rebar may clash with mechanical and electrical systems and mechanical and electrical systems with temporary structures.
SolutionAny construction process that relies on collaboration will be successful and will be sped up. Utilizing a constructible model can prevent clashes of this nature. You can integrate models and drawings from other designers and detailers using suitable software.
The location of laps is an important factor in rebar design. In 2D drawings, these details might be overlooked. Most commonly, you find that the lines donot fit together correctly at the lap, causing clashes or congestion on site when they are mistaken for just lines. The result is more work & higher costs.
SolutionAn easy way to identify congestion and clashes is to use 3D design tools and a constructible model. Preliminary methods can be created at the beginning of the detailing process on the basis of design intent. The project people can be connected before beginning the construction work.
Rebar Clashes with Adjacent Bar’s & Structures
A separate drawing details neighboring rebar that clashes with your design. A flat 2D drawing might not allow you to see real shapes, on the other hand. Additionally, you might be detailing various reinforcement parts using different drawings without linking them together. Consequently, your rebar fixer cannot identify clashes on the job site until work begins.
3D design software allows all reinforcement to be shown as a single model.
Rebar Detailing Missing
It is common to leave some rebar out of plans when creating complex reinforced concrete structures in 2D. If you think you included something among flat lines, you might not have. If these omissions are not detected before drawings are issued, then you may have to redo the work.
To learn more, watch the following video tutorial.
Video Source: Viskartech
By using 3D tools, the model can be reviewed early on by all parties involved in the project. It will be easier to spot missing parts and increase collaboration if more people look at the model.
Also, transparency facilitates the process of evaluating the constructability of the design and the entire construction process. By doing so, the rebar process can be integrated into the workflow and every piece of required rebar will be accounted for.