Projektid – Eesti

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Betoonist kokkupandav disain (armatuur, 3D-modelleerimine, WSD)

TARKVARATOOTED​: Tekla structures, Tekla model sharing, dlubal rfem

Precast structures are gaining popularity due to better quality control, shorter construction times and more environmental friendliness than monolithic structures.

When designing an object from prefabricated structures, PMtech Group engineers pay special attention to: structural solutions, strength, stability, durability of the building and the materials used.

When working on these type of the projects, special attention is paid to local manufacturers, the requirements of manufacturers of structures and prefabricated elements and their nomenclature, which in the future allows you to competently organize logistics and deliver them to the construction site at the lowest cost. Further, all the necessary documentation (working drawings of complex individual elements) was transferred to the plant, where, according to these data, all the necessary elements were completed. The final stage was the dispatch of the finished elements to the construction site for installation.

BIM Design of public buildings (kindergarten, school)


Designing residential and public spaces is seen as expanding the dialogue with the urban context, linking with the surrounding nature, while effectively going beyond the simple commercial goals of building square meters.

To create a 3D BIM model, it is important to take into account not only the future parameters of the object, the scale of the project and the desired construction time, but also to understand what purposes the object is being erected for, what functional relationship between the layout of the internal premises is planned, etc.

A feature of the kindergartens design is the compliance by specialists with the requirements of the set of rules 252.1325800.2016 “Buildings of preschool educational organizations …”

From the basic rules it follows:

  1. Depending on the characteristics of children, select the number of storeys of premises (no more than 3 floors for general institutions, no more than one floor for specialized gardens, etc.)
  2. Placement of the premises, taking into account the class of the constructive hazard of the building (for example, design of premises for preschool groups not higher than the second floor and not further than 20 meters from the evacuation entrance, etc.)

3D BIM model “As designed” of a subway station


To create a 3D model in this project, at the stage of initial data approval, key sections were identified, which were subsequently performed by the specialists of our team related to the relevant specialization. The next step was to create a 3D model of the metro station lobbies and the underground section of the station. It is worth noting that the 3D BIM model provides an opportunity to identify spatial collisions in the working documentation for all the design disciplines (LOD 300-400, 90 sections of the RD), which, in the future, significantly reduces temporary downtime already at the stage of object construction.

3D modeling allows errors to be identified before the construction stage for them to become costly construction errors, and the design time is reduced by 45%. All the information is available electronically and the volume of the paper documents is reduced by 60%. The consolidated information in a single file provides a comprehensive overview and a tighter control over the site, which saves time and money for the customer.

3D BIM model of the Сhemical, Mining & Metals complex


According to the available 2D documentation, the project “3D BIM model of the Сhemical, Mining & Metals complex” was carried out to fill in the attributes of the section of the supporting structure and create a 3D model.

When creating a 3D model, an analysis of clashes, specifications, and statements was carried out in order to find optimal solutions for the choice of materials, their properties, as well as characteristics for reinforced concrete and metal structures. After the completion of the project, all implemented solutions were successfully approved by specialists and organizations that took part in the development and design of the facility.

The development of the BIM model “As designed” is an effective solution for translation from paper or outdated types of data, since, during the transition to a three-dimensional model, significant errors and clashes are identified and corrected. A technically correct BIM data allows you to efficiently and competently allocate the budget for the construction, re-design and operation of a building or structure.

Calendar time scheduling and sequencing project planning


4D BIM (Calendar and time scheduling planning) is such an approach in design, when an object is represented not only in space, but also in time, and this can be reflected as “3D BIM data + time”.

This approach gives the project participants the ability to efficiently visualize, analyze and communicate issues related to sequential, spatial and temporal aspects of the construction progress. In addition, 4D scheduling allows to create more reliable schedules, improved site layouts and logistics plans, which greatly contribute to the increased productivity.

A well-formed schedule allows you to plan and see the sequence of the construction work, identify problems and inconsistencies, find opportunities to improve the construction schedule, track the supply of the materials and much more. 4D BIM currently represents the best integration of a 3D model with additional scheduling dimensions and thus provides easy access to data from anywhere on any device.

Design of steel structures (3D modeling, detailing, WSD)


When developing a project of metal structures for a public center facility, the work was carried out to form the design documentation of the MDS brand (metal detailing structures) where it was determined: the type of metal used, the deformation levels and the load on the structure were assessed based on the customer’s requirements for production at the plant.

After that, the process of creating the detailed drawings began. At this stage, the shortcomings were eliminated, the calculations were reconciled and all the necessary adjustments were made. Further, the specialists of all building profiles proceeded to the design of metal structures, in accordance with technical and safety standards, choosing a rational constructive form and layout.

The final design stage includes: drawing up wiring diagrams of the overpass of shipping elements, working drawings of nodes and connections (MS, MDS) in a 3D model. After the release, the documentation from the 3D model was included in the set of design documentation for the Customer and the construction organization.

Building a 3D model based on a point cloud


The creation of the “As built” model for this project was based on the information (point clouds) obtained using 3D laser scanning technology. After receiving the processed point cloud, the import was made into the CAD system, where further 3D modeling was performed.

The finished model displays the real state of the object at the time of the survey and displays the results of the conducted engineering and geodetic surveys. The advantage of this method is that in a short time the Customer has the opportunity to obtain a detailed executive model of both a simple and a complex engineering facility, as it will be necessary for further operation and reconstruction.

During the construction process, the collection of a point cloud and the use of the object model at each stage, allows you to identify and correct the collisions and errors that have arisen, which will allow you to work at the stage of construction and installation works without corrections and delays. The 3D model, developed on the basis of the NLS, ensures operational safety and significantly reduces the cost of the project.

Detecting physical and intellectual collisions in 3D models


The presence of collisions (intersections between objects) triggers costly time delays and material costs. They can be found on the site when correction is impossible or partially possible, but the best solution is to find intersections at the design stage and at an early stage.

There are several methods for finding collisions. The first one is through the automatic model checking that allows us to detect most physical collisions and thereby save time for the second stage. In the second method, in the process of manual verification by a specialist, the intellectual collisions are revealed that were not noticed by specialized programs and can only be detected based on the logic and experience of the employee.

When working in a BIM environment, all the processed data at the end of the project allows you to get a detailed model and over time, you can compare several model options to understand and see the changes that have affected the object over time.

3D model of a technological complex based on a point cloud


The main task for this project was the creation of a parametric 3D model for further design of additional installations, reconstruction of the workshop’s internal systems and equipment modernization. A special feature of the work is the fact that the acquisition of a point cloud through scanning was carried out without interrupting the production process.

After scanning, the detailed information was obtained on the geometry of the active object, which included as follows: the thickness of all floors, walls, dimensions of openings, elevation marks, deflections of arches and other information. Further, an executive BIM was developed – a model, where each element contained a set of technical and technological characteristics necessary for the design.

On the example of this project, once again you can see that modern measurement technologies help speed up the reconstruction process and thanks to BIM – a model built on a point cloud. It becomes possible to carry out reconstruction and modernization with a millimeter accuracy.

Creation of a three-dimensional model of an industrial complex


When creating 3D models of industrial facilities, various methods and tools are used that allow you to collect information about facilities and, issue documentation on its basis. The model itself is a repository of information about the facility for further reconstruction, modernization, and provides an opportunity to plan time and financial costs, identify problems in the form of intersections (collisions) and evaluate performance.

This method made it possible to carry out a survey in a short time, process the resulting point cloud and create a detailed 3D model for further use by the Customer. Despite the limitations that arose due to difficult visibility conditions and the characteristics of the object, the digital twin, after the completion of the work, reflected the exact data of the real object in electronic format.

The creation of a BIM model of the object was due to:

– carrying out in the future reconstruction and dismantling of existing structures of the industrial workshop of the metallurgical complex;

– construction of new structures and conflict-free linking with the investigated parts of the workshop based on a ready-made BIM model and available information.

Designing an ecological system for expanded clay kilns No. 1 and 2


The main objectives of the project “Construction of gas cleaning furnaces for roasting expanded clay No. 1 and 2” were to improve the environmental situation in the region, the ecology of the production, reduce the loss of expanded clay gravel during the production, as well as reduce the amount of dust scattered into the atmosphere. Our company represented the general designer of the electrostatic precipitator system. The main stages of the work were implemented using CAD Tekla Structures: modeling and placement of equipment and structures of the installation metal frame, coordination of design and construction solutions for specialized technological equipment and methods of its attachment to the supporting structures, elaboration of a high degree of detail (LOD 400) and others.

The project “Construction of gas cleaning furnaces for roasting expanded clay No. 1 and 2” received a positive conclusion from GlavGosexpertiza and in June 2020, Project Management Technologies won the nomination “Best Industrial Project” of the Tekla BIM Awards 2020 RU & CIS competition and was awarded for the development effective design solutions and a professional approach.

Design of structures and building fences


The design of metal structures is a time consuming and responsible process that requires the participation of the customer, the design department and production. The creation of the design documentation, which includes the development of detailed drawings of metal structures, requires compliance with all the norms, standards and correct calculations from the specialists.

In this project, our company performed work on the creation of a 3d model in Tekla Structures and the release of factory drawings for a metal arch over the entrance group. These drawings are distinguished by absolute detail and can be traced: bindings, hole sizes, welding features. The professional approach of our employees allowed us to create clear and accurate assembly drawings, as well as informative assembly drawings for easy and quick assembly of the steel structure elements of the central entrance portal.

Taking the advantages of the finished metal structure into account, which were highlighted after the completion of the work: eco-benefit – the products were manufactured without waste; high strength of the arch; convenience and time saving when assembling according to ready-made and understandable drawings.