BIM Model Development

Why has the BIM model become a must-have tool for serious construction businesses?

A BIM model is not a “attractive three-dimensional drawing”, but a single digital source of truth about your asset that combines geometry, specifications, schedules and operational data in one environment. This model allows you to synchronize the work of the developer, designer, general contractor, subcontractors and maintenance service, dramatically reducing the number of errors, rework and inconsistencies at the construction site. AYU-Project develops BIM models of buildings with parametric design of structures and engineering systems, so that you manage the project based on actual data, and not on outdated drawings and files in disparate formats.

What is a BIM model in your project and what problems does it solve?

A BIM model, in our understanding, is a digital twin of an object, in which each element has geometry, binding, a set of parameters and connections with other objects, and the model itself lives in a common data environment and is kept up-to-date throughout its entire life cycle. Such a model solves several key problems: it coordinates architectural, structural and engineering sections, automatically identifies collisions, provides accurate amounts of work and materials, serves as the basis for scheduling and network planning (4D) and budgeting (5D), and then as a digital basis for the operation of the building. In other words, BIM ceases to be a “project option” and becomes a working tool for managed construction.

What BIM models do we develop?

AYU-Project creates BIM models at different levels of detail (LOD) and for different tasks of project participants, so that the model is not “maximum detail”, but optimally useful.

• DD-based models - for examination, 3D coordination of sections and early search for collisions.
• Coordination BIM models - summary models of architecture, structures and engineering systems with clash detection and reporting on collisions.
• Working BIM models (based on WD) - with detailing down to the level of components, embeds and equipment, suitable for generating drawings, specifications and statements from the model.
• As-built BIM models - reflecting the actual performance of work on site, taking into account installation changes and linking to as-built documentation.
• Operational BIM models - with an expanded set of equipment parameters, maintenance regulations and communication with operation systems (CAFM, ASM).

This approach allows the use of one digital circuit of the model from the design documentation and working documentation stage to the commissioning and further operation of the building.

How does BIM modeling help identify collisions and save on rework?

Automated search for collisions in a BIM model is a way to detect intersections of engineering systems, structures and architecture before entering the construction site, and therefore before they turn into dismantling, additional work and conflict between project participants. Modern BIM platforms allow you to combine AR, RC/KM, HVAC, water supply and drainage, EL, communications and other sections into one coordination model, and then perform clash detection and generate a structured report linking each intersection to a specific location in the model and the responsible section. According to market experience, the introduction of such practices reduces the number of collisions at a construction site by several times, reducing direct costs for rework and unproductive downtime. AYU-Project builds this process transparently: from verification settings to report format and control over the elimination of comments.

How we work with BIM models: stages and format of interaction

The development of a BIM model in AYU-Project is based on a clear process, where each stage is tied to a specific result and format for transferring data to the customer.

1. Analysis of the task and source data: we determine the goals of the model (expert review, coordination, construction, operation), the required LOD, the composition of sections and the format of the general data environment.
2. Formation of a BIM standard for the project: model structure, naming rules, set of parameters, requirements for families/libraries, exchange format.
3. Construction of disciplinary models: separate models of architecture, structures and engineering systems according to agreed rules.
4. Creating a coordination model and checking collisions: collapsing sections, link delays, clash detection, collision reports in an agreed format.
5. Release of documentation from the model: plans, sections, specifications, statements, summary tables of volumes.
6. Preparation of an operational model: adding equipment parameters, structuring data for operating systems, issuing a model and documentation in agreed formats (for example, IFC + native).

The client receives not just a model file, but a formalized set of regulations and artifacts that can be scaled to the following facilities.

What advantages of BIM models do the developer, general contractor and operating organization receive?

BIM “works” differently for each participant, and the AYU-Project builds the simulation so that everyone gets their own measurable impact.

• For the developer: transparency of volumes and budget, controllability of changes, the ability to compare options and manage risks in terms of timing and cost even at the DD stage.
• For the general contractor: synchronization of the work schedule with the model (4D), more accurate volumes and logistics, reducing the number of collisions and downtime of crews on site.
• For subcontractors: an up-to-date coordination model, a clear area of ​​responsibility, fewer conflicts with neighboring sections.
• For the operating organization: digital passport of the building with equipment parameters, maintenance history and linking documentation to model elements.

As a result, the BIM model becomes not a one-time investment in “beautiful 3D”, but a working tool for the entire life cycle of the facility.

By what standards and requirements do we develop BIM models?

The market is gradually moving from “everyone models in their own way” to formalized requirements for BIM models, and failure to comply with these requirements results in the inability to use the model in real processes. In its work, AYU-Project relies on:

• Requirements of Russian customers for information models (typical BIM requirements of large developers, industrial and infrastructure companies).
• IFC formats and openBIM approaches for exchanging models between different software systems.
• The practice of using a BIM model as a source of data for calculations, planning, estimates and operation.

On the customer’s side, this is expressed simply: the model corresponds to the agreed level of detail and set of parameters, is opened and correctly used in target software products and processes.

Why is it worth entrusting the development of a BIM model to AYU-Project?

Choosing a BIM modeling contractor is a choice not only of software, but also of competence in real design and construction processes. AYU-Project combines the experience of classical engineering design and the practice of working with BIM as a tool, and not an end in itself.

• Focus on B2B customers: developers, general contractors, technical customers, operating companies.
• Understanding the real needs of construction: models and reports are focused on reducing collisions and controlling volumes, and not on “beautiful renderings”.
• Integration with design documentation and working documentation: BIM models are developed and updated in conjunction with classical documentation, and not separately from it.
• Flexible interaction format: We can act as a BIM contractor at the DD, WD, construction stage or only for individual tasks (coordination, clash detection, execution model).
• Scalability: the built BIM standards and processes are easily transferable to subsequent objects within the customer’s portfolio.

For the construction business, this means a predicted result: a model that is actually used by project participants, and not an archived file on the server.