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BIM Implementation for Concrete Rebar Reinforcement

BIM Implementation for Concrete Rebar Reinforcement

All too often in construction, complicated projects are delayed or cost overruns occur due to the difficulties of constructing the design.

“It has long been a problem in the building business because many designs “check the box” for characteristics but are not always realistic as a built structure.” And, all too often, no checks are performed on feasibility before construction begins, resulting in changes and increased costs for a project.”

Before the introduction of BIM, structural engineers would develop an analytical model in STAAD (Structural Analysis and Design Software) for concrete rebar reinforcement. The design was completed using Excel spreadsheets which resulted in the required reinforcement area. The drawings & sketches were then refined and distributed to the draftsmen. AutoCAD was used to create a conceptual representation of the real rebar.

Reinforced concrete modeling is now done on BIM-approved software, such as Revit, thanks to the introduction of BIM. BIM has improved the collaboration of the engineer and the draftsman since they can both work on a centralized file that is continuously updated with model modifications. The engineer’s analytical model can be sent to SAP200 software for validation. Structural engineers may create coherent Bar Bending Schedules and Bills of Materials using the 3D BIM model.

The drawings are now more accurate, with a stronger design and the opportunity to evaluate the project’s constructability before coming to the site. With an increase in productivity, quantity estimates and management concerns reduce.

Implementing BIM for Concrete Rebar Reinforcement

The precision of the concrete rebar reinforcement is determined by the precision of the modeling. As a result, it is critical to develop a consistent quality workflow that improves collaboration between structural engineers’ designs and BIM Modelers.

The ideal workflow for concrete rebar reinforcement consists of 4 essential steps:

1. Testing

It is recommended not to begin implementation until a small group of professionals has been assembled. This step will entail assessing the company’s requirements. The initial goal will be to evaluate the irregularities to comprehend and develop potential BIM solutions to speed up the process of rebar detailing, concrete reinforcing, and so forth.

This phase is required since it will serve as the foundation for all future modeling When done effectively, rebar detailing or rebar modeling can become the strength and result in significant time, money, and resource savings over a standard 2D reinforced concrete approach.

2. Advancing

This process entails creating bespoke templates for each type of document that is necessary. General Modeling, AADA Foundation, Pile, Pile Plan Detailing, Foundation Plan Detailing, Anchor Bolt Layout Detailing, Reinforcement Slab Detailing, Isometric Foundation Detailing, Geotechnical Section, and so on are examples.

Set up the needed filter and different section kinds, such as Air Terminals, Analytical Beams, Braces, Columns, Floors, and so on, to get the fastest modeling speed possible. It is easy to develop the reinforced concrete documents required for building structures with the right template, filters, and types.

The goal is to generate all of the required drawings from a single model without having to deal with particular features that do not belong on the correct sheet or elements that change from one phase to the next of the design process.

workflow for concrete rebar reinforcement

3. Training

The most important stage in developing a BIM workflow for 3D reinforced concrete modeling is training. Following the testing and development phase, the teams, which include Draftsmen, Structural Engineers, Lead Engineers, and Management, must receive suitable training. Everyone in the organization should be aware of the benefits that a parametric 3D BIM model of reinforced concrete rebar may provide if done appropriately.

4. Executing

Allow the BIM expert to join the task force and work closely with the structural engineers and draftsmen at this phase. This would enable a smooth collaboration. Begin with a modest or pilot project to test the waters. The event will demonstrate the value of BIM and its capacity to foster cross-departmental collaboration. BIM will enable a faster and more reliable documentation process with better and more accurate detailing.


5 Tips and Tricks for Efficient Revit Implementation

To use Revit efficiently for a streamlined workflow the following recommendations & tested approaches must be established and executed.

I. Setting up Revit Families, Parameters & Rebar Shapes

Custom Revit families must be defined for all concrete objects, anchor bolts, and insert plates. All of these Revit families, once created, should have predefined parameters as they would be used to collect & record information needed to create the project’s Bill of Materials (BOMs).

At the start of the project, it is critical to standardize the dimensions and structural rebar shapes as much as feasible. Every user must interact with this set of settings to generate data in a consistent, repeatable, and manageable manner. This will evaluate the structural engineers’ design and automatically calculate the steel-concrete ratio of the foundation

II. Freeze Design

Once the design and construction drawings have been finalized, freeze the model to prevent any undesirable changes until the next iteration. The tools available in Revit can be used for this purpose. It is critical to pin and arranges the rebar while laying it as well as deal with dividers that will uniquely identify distinct cages.

III. Bending Schedule

It is critical to generate a bending schedule straight from the model. This assures that the model, documentation, and fabrication sheets are all completely consistent. Using the parameters encoded in the bars, an automatic bending schedule can be generated. The schedule is flexible and adaptable, allowing it to be modified to the needs of the project.

III. Quality Control Viewpoint

Assign a color to each type of rebar and use it in specific 3D views to quickly see if everything is modeled correctly. The color should be matched to the accessible parameter in each rebar called “Bar Comment”. Values entered will change the color of the rebar and may be viewed in the filters and 3D design output.

IV. Congested Nodes

Working with congested nodes is quite challenging. The structural engineers simply offer the reinforcement area and rough sketches of the principal bar positions in the structure. The draftsmen must determine the reinforcement area and translate it into precise manufacturing drawings.

This becomes even more complicated when working with large constructions because it is impossible to position every rebar, which leads to miscommunication, potential site blunders, and a waste of time and money. With the use of BIM and its multidisciplinary capabilities, you can manage & assist in the positioning of every rebar in the structure, regardless of the project’s scale

The objective of Rebar Detailing Services is to provide construction professionals with reinforcing steel detailing and consultation services. The current placements and designs are thoroughly checked and optimized without breaching the rules and codes.

A specialized CAD partner must comprehend the job and its complexities, as well as the detailers’ workflow while developing the positioning drawings. At Indovance, we understand, and we want potential clients to know that we will adapt and improve the critical tools that a detailer needs to accomplish their job efficiently. We work hard to understand the needs of our clients, their clients, and the AEC industry as a whole.

Indovance Inc is and provides professional rebar shop drawings with expertise in detailing, drawing, 3D modeling, and estimation. For two decades, we have provided service to clients all around the world in accordance with global industry standards. Structural engineers, rebar fabricators, steel erectors, detailers, general contractors, concrete contractors, and designers will benefit from our detailing and estimation services.

Putting just a little extra time and work on rebar designs will save you a lot of time and money in the shop and on the construction site. The employees’ task is made easier by these precise rebar drawings. Workers know where to put things, which cuts down on installation costs. Indovance, being a leading global CAD partner, understands your tight schedules and obligations, and hence provides you with prompt service.

For more queries regarding any of the topics mentioned above, feel free to connect with us on our website www.indovance.com, or contact us at +1-919-238-4044.

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